5720 lines
165 KiB
JavaScript
5720 lines
165 KiB
JavaScript
/**
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Torque 2.11.4
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Temporal mapping for CartoDB
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https://github.com/cartodb/torque
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**/
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!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.torque=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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(function (global){
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var torque = require('./');
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var requestAnimationFrame = global.requestAnimationFrame
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|| global.mozRequestAnimationFrame
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|| global.webkitRequestAnimationFrame
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|| global.msRequestAnimationFrame
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|| function(callback) { return global.setTimeout(callback, 1000 / 60); };
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var cancelAnimationFrame = global.cancelAnimationFrame
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|| global.mozCancelAnimationFrame
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|| global.webkitCancelAnimationFrame
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|| global.msCancelAnimationFrame
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|| function(id) { clearTimeout(id); };
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/**
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* options:
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* animationDuration in seconds
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* animationDelay in seconds
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*/
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function Animator(callback, options) {
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if(!options.steps) {
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throw new Error("steps option missing")
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}
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this.options = options;
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this.running = false;
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this._tick = this._tick.bind(this);
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this._t0 = +new Date();
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this.callback = callback;
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this._time = 0.0;
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this.itemsReady = false;
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this.options = torque.extend({
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animationDelay: 0,
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maxDelta: 0.2,
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loop: options.loop === undefined ? true : options.loop
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}, this.options);
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this.rescale();
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}
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Animator.prototype = {
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start: function() {
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this.running = true;
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requestAnimationFrame(this._tick);
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this.options.onStart && this.options.onStart();
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if(this.options.steps === 1){
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this.running = false;
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}
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},
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isRunning: function() {
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return this.running;
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},
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stop: function() {
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this.pause();
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this.time(0);
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this.options.onStop && this.options.onStop();
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},
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// real animation time
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time: function(_) {
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if (!arguments.length) return this._time;
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this._time = _;
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var t = this.range(this.domain(this._time));
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this.callback(t);
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},
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toggle: function() {
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if (this.running) {
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this.pause()
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} else {
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this.start()
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}
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},
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rescale: function() {
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this.domainInv = torque.math.linear(this.options.animationDelay, this.options.animationDelay + this.options.animationDuration);
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this.domain = this.domainInv.invert();
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this.range = torque.math.linear(0, this.options.steps);
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this.rangeInv = this.range.invert();
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this.time(this._time);
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this.running? this.start(): this.pause();
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return this;
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},
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duration: function(_) {
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if (!arguments.length) return this.options.animationDuration;
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this.options.animationDuration = _;
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if (this.time() > _) {
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this.time(0);
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}
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this.rescale();
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return this;
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},
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steps: function(_) {
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this.options.steps = _;
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return this.rescale();
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},
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step: function(s) {
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if(arguments.length === 0) return this.range(this.domain(this._time));
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this._time = this.domainInv(this.rangeInv(s));
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},
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pause: function() {
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this.running = false;
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cancelAnimationFrame(this._tick);
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this.options.onPause && this.options.onPause();
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},
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_tick: function() {
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var t1 = +new Date();
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var delta = (t1 - this._t0)*0.001;
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// if delta is really big means the tab lost the focus
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// at some point, so limit delta change
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delta = Math.min(this.options.maxDelta, delta);
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this._t0 = t1;
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this._time += delta;
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if(this.step() >= this.options.steps) {
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if(!this.options.loop){
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// set time to max time
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this.time(this.options.animationDuration);
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this.pause();
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} else {
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this._time = 0;
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}
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}
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if(this.running) {
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this.time(this._time);
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requestAnimationFrame(this._tick);
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}
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}
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};
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module.exports = Animator;
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}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
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},{"./":10}],2:[function(require,module,exports){
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var _torque_reference_latest = {
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"version": "1.0.0",
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"style": {
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"comp-op": {
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"css": "comp-op",
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"default-value": "src-over",
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"default-meaning": "add the current layer on top of other layers",
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"doc": "Composite operation. This defines how this layer should behave relative to layers atop or below it.",
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"type": [
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"src", //
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"src-over", //
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"dst-over", //
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"src-in", //
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"dst-in", //
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"src-out", //
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"dst-out", //
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"src-atop", //
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"dst-atop", //
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"xor", //
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"darken", //
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"lighten" //
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]
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}
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},
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"layer" : {
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"buffer-size": {
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"default-value": "0",
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"type":"float",
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"default-meaning": "No buffer will be used",
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"doc": "Extra tolerance around the Layer extent (in pixels) used to when querying and (potentially) clipping the layer data during rendering"
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},
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"-torque-clear-color": {
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"css": "-torque-clear-color",
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"type": "color",
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"default-value": "rgba(255, 255, 255, 0)",
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"default-meaning": "full clear",
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"doc": "color used to clear canvas on each frame"
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},
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"-torque-frame-count": {
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"css": "-torque-frame-count",
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"default-value": "128",
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"type":"number",
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"default-meaning": "the data is broken into 128 time frames",
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"doc": "Number of animation steps/frames used in the animation. If the data contains a fewere number of total frames, the lesser value will be used."
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},
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"-torque-resolution": {
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"css": "-torque-resolution",
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"default-value": "2",
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"type":"number",
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"default-meaning": "",
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"doc": "Spatial resolution in pixels. A resolution of 1 means no spatial aggregation of the data. Any other resolution of N results in spatial aggregation into cells of NxN pixels. The value N must be power of 2"
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},
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"-torque-animation-duration": {
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"css": "-torque-animation-duration",
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"default-value": "30",
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"type":"number",
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"default-meaning": "the animation lasts 30 seconds",
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"doc": "Animation duration in seconds"
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},
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"-torque-aggregation-function": {
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"css": "-torque-aggregation-function",
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"default-value": "count(cartodb_id)",
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"type": "string",
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"default-meaning": "the value for each cell is the count of points in that cell",
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"doc": "A function used to calculate a value from the aggregate data for each cell. See -torque-resolution"
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},
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"-torque-time-attribute": {
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"css": "-torque-time-attribute",
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"default-value": "time",
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"type": "string",
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"default-meaning": "the data column in your table that is of a time based type",
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"doc": "The table column that contains the time information used create the animation"
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},
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"-torque-data-aggregation": {
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"css": "-torque-data-aggregation",
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"default-value": "linear",
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"type": [
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"cumulative"
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],
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"default-meaning": "previous values are discarded",
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"doc": "A linear animation will discard previous values while a cumulative animation will accumulate them until it restarts"
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}
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},
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"symbolizers" : {
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"*": {
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"comp-op": {
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"css": "comp-op",
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"default-value": "src-over",
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"default-meaning": "add the current layer on top of other layers",
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"doc": "Composite operation. This defines how this layer should behave relative to layers atop or below it.",
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"type": [
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"src", //
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"src-over", //
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"dst-over", //
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"src-in", //
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"dst-in", //
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"src-out", //
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"dst-out", //
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"src-atop", //
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"dst-atop", //
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"xor", //
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"darken", //
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"lighten" //
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]
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},
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"opacity": {
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"css": "opacity",
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"type": "float",
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"doc": "An alpha value for the style (which means an alpha applied to all features in separate buffer and then composited back to main buffer)",
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"default-value": 1,
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"default-meaning": "no separate buffer will be used and no alpha will be applied to the style after rendering"
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}
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},
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"trail": {
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"steps": {
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"css": "trail-steps",
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"type": "float",
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"default-value": 1,
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"default-meaning": "no trail steps",
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"doc": "How many steps of trails are going to be rendered"
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}
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},
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"polygon": {
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"fill": {
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"css": "polygon-fill",
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"type": "color",
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"default-value": "rgba(128,128,128,1)",
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"default-meaning": "gray and fully opaque (alpha = 1), same as rgb(128,128,128)",
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"doc": "Fill color to assign to a polygon"
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},
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"fill-opacity": {
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"css": "polygon-opacity",
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"type": "float",
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"doc": "The opacity of the polygon",
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"default-value": 1,
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"default-meaning": "opaque"
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}
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},
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"line": {
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"stroke": {
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"css": "line-color",
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"default-value": "rgba(0,0,0,1)",
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"type": "color",
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"default-meaning": "black and fully opaque (alpha = 1), same as rgb(0,0,0)",
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"doc": "The color of a drawn line"
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},
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"stroke-width": {
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"css": "line-width",
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"default-value": 1,
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"type": "float",
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"doc": "The width of a line in pixels"
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},
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"stroke-opacity": {
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"css": "line-opacity",
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"default-value": 1,
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"type": "float",
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"default-meaning": "opaque",
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"doc": "The opacity of a line"
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},
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"stroke-linejoin": {
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"css": "line-join",
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"default-value": "miter",
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"type": [
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"miter",
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"round",
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"bevel"
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],
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"doc": "The behavior of lines when joining"
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},
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"stroke-linecap": {
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"css": "line-cap",
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"default-value": "butt",
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"type": [
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"butt",
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"round",
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"square"
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],
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"doc": "The display of line endings"
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}
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},
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"markers": {
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"file": {
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"css": "marker-file",
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"doc": "An SVG file that this marker shows at each placement. If no file is given, the marker will show an ellipse.",
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"default-value": "",
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"default-meaning": "An ellipse or circle, if width equals height",
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"type": "uri"
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},
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"opacity": {
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"css": "marker-opacity",
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"doc": "The overall opacity of the marker, if set, overrides both the opacity of both the fill and stroke",
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"default-value": 1,
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"default-meaning": "The stroke-opacity and fill-opacity will be used",
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"type": "float"
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},
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"fill-opacity": {
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"css": "marker-fill-opacity",
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"doc": "The fill opacity of the marker",
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"default-value": 1,
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"default-meaning": "opaque",
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"type": "float"
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},
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"stroke": {
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"css": "marker-line-color",
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"doc": "The color of the stroke around a marker shape.",
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"default-value": "black",
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"type": "color"
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},
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"stroke-width": {
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"css": "marker-line-width",
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"doc": "The width of the stroke around a marker shape, in pixels. This is positioned on the boundary, so high values can cover the area itself.",
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"type": "float"
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},
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"stroke-opacity": {
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"css": "marker-line-opacity",
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"default-value": 1,
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"default-meaning": "opaque",
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"doc": "The opacity of a line",
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"type": "float"
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},
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"fill": {
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"css": "marker-fill",
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"default-value": "blue",
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"doc": "The color of the area of the marker.",
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"type": "color"
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},
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"marker-type": {
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"css": "marker-type",
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"type": [
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"rectangle",
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"ellipse"
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],
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"default-value": "ellipse",
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"doc": "The default marker-type. If a SVG file is not given as the marker-file parameter, the renderer provides either an rectangle or an ellipse (a circle if height is equal to width)"
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},
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"width": {
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"css": "marker-width",
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"default-value": 10,
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"doc": "The width of the marker, if using one of the default types.",
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"type": "float"
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}
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},
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"point": {
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"file": {
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"css": "point-file",
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"type": "uri",
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"required": false,
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"default-value": "none",
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"doc": "Image file to represent a point"
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},
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"opacity": {
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"css": "point-opacity",
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"type": "float",
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"default-value": 1.0,
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"default-meaning": "Fully opaque",
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"doc": "A value from 0 to 1 to control the opacity of the point"
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}
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}
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},
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"colors": {
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"aliceblue": [240, 248, 255],
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"antiquewhite": [250, 235, 215],
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"aqua": [0, 255, 255],
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"aquamarine": [127, 255, 212],
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"azure": [240, 255, 255],
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"beige": [245, 245, 220],
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"bisque": [255, 228, 196],
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"black": [0, 0, 0],
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"blanchedalmond": [255,235,205],
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"blue": [0, 0, 255],
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"blueviolet": [138, 43, 226],
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"brown": [165, 42, 42],
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"burlywood": [222, 184, 135],
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"cadetblue": [95, 158, 160],
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"chartreuse": [127, 255, 0],
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"chocolate": [210, 105, 30],
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"coral": [255, 127, 80],
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"cornflowerblue": [100, 149, 237],
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"cornsilk": [255, 248, 220],
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"crimson": [220, 20, 60],
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"cyan": [0, 255, 255],
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"darkblue": [0, 0, 139],
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"darkcyan": [0, 139, 139],
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"darkgoldenrod": [184, 134, 11],
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"darkgray": [169, 169, 169],
|
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"darkgreen": [0, 100, 0],
|
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"darkgrey": [169, 169, 169],
|
|
"darkkhaki": [189, 183, 107],
|
|
"darkmagenta": [139, 0, 139],
|
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"darkolivegreen": [85, 107, 47],
|
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"darkorange": [255, 140, 0],
|
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"darkorchid": [153, 50, 204],
|
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"darkred": [139, 0, 0],
|
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"darksalmon": [233, 150, 122],
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"darkseagreen": [143, 188, 143],
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"darkslateblue": [72, 61, 139],
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"darkslategrey": [47, 79, 79],
|
|
"darkturquoise": [0, 206, 209],
|
|
"darkviolet": [148, 0, 211],
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"deeppink": [255, 20, 147],
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|
"deepskyblue": [0, 191, 255],
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|
"dimgray": [105, 105, 105],
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|
"dimgrey": [105, 105, 105],
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|
"dodgerblue": [30, 144, 255],
|
|
"firebrick": [178, 34, 34],
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|
"floralwhite": [255, 250, 240],
|
|
"forestgreen": [34, 139, 34],
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|
"fuchsia": [255, 0, 255],
|
|
"gainsboro": [220, 220, 220],
|
|
"ghostwhite": [248, 248, 255],
|
|
"gold": [255, 215, 0],
|
|
"goldenrod": [218, 165, 32],
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|
"gray": [128, 128, 128],
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|
"grey": [128, 128, 128],
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|
"green": [0, 128, 0],
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|
"greenyellow": [173, 255, 47],
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|
"honeydew": [240, 255, 240],
|
|
"hotpink": [255, 105, 180],
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|
"indianred": [205, 92, 92],
|
|
"indigo": [75, 0, 130],
|
|
"ivory": [255, 255, 240],
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|
"khaki": [240, 230, 140],
|
|
"lavender": [230, 230, 250],
|
|
"lavenderblush": [255, 240, 245],
|
|
"lawngreen": [124, 252, 0],
|
|
"lemonchiffon": [255, 250, 205],
|
|
"lightblue": [173, 216, 230],
|
|
"lightcoral": [240, 128, 128],
|
|
"lightcyan": [224, 255, 255],
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|
"lightgoldenrodyellow": [250, 250, 210],
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|
"lightgray": [211, 211, 211],
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|
"lightgreen": [144, 238, 144],
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|
"lightgrey": [211, 211, 211],
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|
"lightpink": [255, 182, 193],
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"lightsalmon": [255, 160, 122],
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|
"lightseagreen": [32, 178, 170],
|
|
"lightskyblue": [135, 206, 250],
|
|
"lightslategray": [119, 136, 153],
|
|
"lightslategrey": [119, 136, 153],
|
|
"lightsteelblue": [176, 196, 222],
|
|
"lightyellow": [255, 255, 224],
|
|
"lime": [0, 255, 0],
|
|
"limegreen": [50, 205, 50],
|
|
"linen": [250, 240, 230],
|
|
"magenta": [255, 0, 255],
|
|
"maroon": [128, 0, 0],
|
|
"mediumaquamarine": [102, 205, 170],
|
|
"mediumblue": [0, 0, 205],
|
|
"mediumorchid": [186, 85, 211],
|
|
"mediumpurple": [147, 112, 219],
|
|
"mediumseagreen": [60, 179, 113],
|
|
"mediumslateblue": [123, 104, 238],
|
|
"mediumspringgreen": [0, 250, 154],
|
|
"mediumturquoise": [72, 209, 204],
|
|
"mediumvioletred": [199, 21, 133],
|
|
"midnightblue": [25, 25, 112],
|
|
"mintcream": [245, 255, 250],
|
|
"mistyrose": [255, 228, 225],
|
|
"moccasin": [255, 228, 181],
|
|
"navajowhite": [255, 222, 173],
|
|
"navy": [0, 0, 128],
|
|
"oldlace": [253, 245, 230],
|
|
"olive": [128, 128, 0],
|
|
"olivedrab": [107, 142, 35],
|
|
"orange": [255, 165, 0],
|
|
"orangered": [255, 69, 0],
|
|
"orchid": [218, 112, 214],
|
|
"palegoldenrod": [238, 232, 170],
|
|
"palegreen": [152, 251, 152],
|
|
"paleturquoise": [175, 238, 238],
|
|
"palevioletred": [219, 112, 147],
|
|
"papayawhip": [255, 239, 213],
|
|
"peachpuff": [255, 218, 185],
|
|
"peru": [205, 133, 63],
|
|
"pink": [255, 192, 203],
|
|
"plum": [221, 160, 221],
|
|
"powderblue": [176, 224, 230],
|
|
"purple": [128, 0, 128],
|
|
"red": [255, 0, 0],
|
|
"rosybrown": [188, 143, 143],
|
|
"royalblue": [65, 105, 225],
|
|
"saddlebrown": [139, 69, 19],
|
|
"salmon": [250, 128, 114],
|
|
"sandybrown": [244, 164, 96],
|
|
"seagreen": [46, 139, 87],
|
|
"seashell": [255, 245, 238],
|
|
"sienna": [160, 82, 45],
|
|
"silver": [192, 192, 192],
|
|
"skyblue": [135, 206, 235],
|
|
"slateblue": [106, 90, 205],
|
|
"slategray": [112, 128, 144],
|
|
"slategrey": [112, 128, 144],
|
|
"snow": [255, 250, 250],
|
|
"springgreen": [0, 255, 127],
|
|
"steelblue": [70, 130, 180],
|
|
"tan": [210, 180, 140],
|
|
"teal": [0, 128, 128],
|
|
"thistle": [216, 191, 216],
|
|
"tomato": [255, 99, 71],
|
|
"turquoise": [64, 224, 208],
|
|
"violet": [238, 130, 238],
|
|
"wheat": [245, 222, 179],
|
|
"white": [255, 255, 255],
|
|
"whitesmoke": [245, 245, 245],
|
|
"yellow": [255, 255, 0],
|
|
"yellowgreen": [154, 205, 50],
|
|
"transparent": [0, 0, 0, 0]
|
|
}
|
|
};
|
|
|
|
module.exports = {
|
|
version: {
|
|
latest: _torque_reference_latest,
|
|
'1.0.0': _torque_reference_latest
|
|
}
|
|
};
|
|
|
|
},{}],3:[function(require,module,exports){
|
|
(function (global){
|
|
//
|
|
// common functionallity for torque layers
|
|
//
|
|
var carto = global.carto || require('carto');
|
|
|
|
function TorqueLayer() {}
|
|
|
|
TorqueLayer.prototype = {
|
|
};
|
|
|
|
TorqueLayer.optionsFromLayer = function(mapConfig) {
|
|
var opts = {};
|
|
if (!mapConfig) return opts;
|
|
var attrs = {
|
|
'buffer-size': 'buffer-size',
|
|
'-torque-frame-count': 'steps',
|
|
'-torque-resolution': 'resolution',
|
|
'-torque-animation-duration': 'animationDuration',
|
|
'-torque-aggregation-function': 'countby',
|
|
'-torque-time-attribute': 'column',
|
|
'-torque-data-aggregation': 'data_aggregation'
|
|
};
|
|
for (var i in attrs) {
|
|
var v = mapConfig.eval(i);
|
|
if (v !== undefined) {
|
|
var a = attrs[i];
|
|
opts[a] = v;
|
|
}
|
|
}
|
|
return opts;
|
|
};
|
|
|
|
TorqueLayer.optionsFromCartoCSS = function(cartocss) {
|
|
var shader = new carto.RendererJS().render(cartocss);
|
|
var mapConfig = shader.findLayer({ name: 'Map' });
|
|
return TorqueLayer.optionsFromLayer(mapConfig);
|
|
};
|
|
|
|
module.exports.TorqueLayer = TorqueLayer;
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"carto":undefined}],4:[function(require,module,exports){
|
|
(function (global){
|
|
var Event = {};
|
|
Event.on = function(evt, callback) {
|
|
var cb = this._evt_callbacks = this._evt_callbacks || {};
|
|
var l = cb[evt] || (cb[evt] = []);
|
|
l.push(callback);
|
|
return this;
|
|
};
|
|
|
|
Event.trigger = function(evt) {
|
|
var c = this._evt_callbacks && this._evt_callbacks[evt];
|
|
for(var i = 0; c && i < c.length; ++i) {
|
|
c[i].apply(this, Array.prototype.slice.call(arguments, 1));
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Event.fire = Event.trigger;
|
|
|
|
Event.off = function (evt, callback) {
|
|
var c = this._evt_callbacks && this._evt_callbacks[evt];
|
|
if (c && !callback) {
|
|
delete this._evt_callbacks[evt];
|
|
return this;
|
|
}
|
|
var remove = [];
|
|
for(var i = 0; c && i < c.length; ++i) {
|
|
if(c[i] === callback) remove.push(i);
|
|
}
|
|
while((i = remove.pop()) !== undefined) c.splice(i, 1);
|
|
return this;
|
|
};
|
|
|
|
Event.callbacks = function(evt) {
|
|
return (this._evt_callbacks && this._evt_callbacks[evt]) || [];
|
|
};
|
|
|
|
function extend() {
|
|
var objs = arguments;
|
|
var a = objs[0];
|
|
for (var i = 1; i < objs.length; ++i) {
|
|
var b = objs[i];
|
|
for (var k in b) {
|
|
a[k] = b[k];
|
|
}
|
|
}
|
|
return a;
|
|
}
|
|
|
|
function clone(a) {
|
|
return extend({}, a);
|
|
}
|
|
|
|
function isFunction(f) {
|
|
return typeof f == 'function' || false;
|
|
}
|
|
|
|
function isArray(value) {
|
|
return value && typeof value == 'object' && Object.prototype.toString.call(value) == '[object Array]';
|
|
}
|
|
|
|
// types
|
|
var types = {
|
|
Uint8Array: typeof(global['Uint8Array']) !== 'undefined' ? global.Uint8Array : Array,
|
|
Uint8ClampedArray: typeof(global['Uint8ClampedArray']) !== 'undefined' ? global.Uint8ClampedArray: Array,
|
|
Uint32Array: typeof(global['Uint32Array']) !== 'undefined' ? global.Uint32Array : Array,
|
|
Int16Array: typeof(global['Int16Array']) !== 'undefined' ? global.Int16Array : Array,
|
|
Int32Array: typeof(global['Int32Array']) !== 'undefined' ? global.Int32Array: Array
|
|
};
|
|
|
|
function isBrowserSupported() {
|
|
return !!document.createElement('canvas');
|
|
}
|
|
|
|
function userAgent() {
|
|
return typeof navigator !== 'undefined' ? navigator.userAgent : '';
|
|
}
|
|
|
|
var flags = {
|
|
sprites_to_images: userAgent().indexOf('Safari') === -1 && userAgent().indexOf('Firefox') === -1
|
|
};
|
|
|
|
module.exports = {
|
|
Event: Event,
|
|
extend: extend,
|
|
clone: clone,
|
|
isFunction: isFunction,
|
|
isArray: isArray,
|
|
types: types,
|
|
isBrowserSupported: isBrowserSupported,
|
|
flags: flags
|
|
};
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{}],5:[function(require,module,exports){
|
|
/**
|
|
* @license
|
|
* Copyright 2013 Google Inc. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @fileoverview Extends OverlayView to provide a canvas "Layer".
|
|
* @author Brendan Kenny
|
|
*/
|
|
|
|
/**
|
|
* A map layer that provides a canvas over the slippy map and a callback
|
|
* system for efficient animation. Requires canvas and CSS 2D transform
|
|
* support.
|
|
* @constructor
|
|
* @extends google.maps.OverlayView
|
|
* @param {CanvasLayerOptions=} opt_options Options to set in this CanvasLayer.
|
|
*/
|
|
|
|
function CanvasLayer(opt_options) {
|
|
/**
|
|
* If true, canvas is in a map pane and the OverlayView is fully functional.
|
|
* See google.maps.OverlayView.onAdd for more information.
|
|
* @type {boolean}
|
|
* @private
|
|
*/
|
|
this.isAdded_ = false;
|
|
|
|
/**
|
|
* If true, each update will immediately schedule the next.
|
|
* @type {boolean}
|
|
* @private
|
|
*/
|
|
this.isAnimated_ = false;
|
|
|
|
/**
|
|
* The name of the MapPane in which this layer will be displayed.
|
|
* @type {string}
|
|
* @private
|
|
*/
|
|
this.paneName_ = CanvasLayer.DEFAULT_PANE_NAME_;
|
|
|
|
/**
|
|
* A user-supplied function called whenever an update is required. Null or
|
|
* undefined if a callback is not provided.
|
|
* @type {?function=}
|
|
* @private
|
|
*/
|
|
this.updateHandler_ = null;
|
|
|
|
/**
|
|
* A user-supplied function called whenever an update is required and the
|
|
* map has been resized since the last update. Null or undefined if a
|
|
* callback is not provided.
|
|
* @type {?function}
|
|
* @private
|
|
*/
|
|
this.resizeHandler_ = null;
|
|
|
|
/**
|
|
* The LatLng coordinate of the top left of the current view of the map. Will
|
|
* be null when this.isAdded_ is false.
|
|
* @type {google.maps.LatLng}
|
|
* @private
|
|
*/
|
|
this.topLeft_ = null;
|
|
|
|
/**
|
|
* The map-pan event listener. Will be null when this.isAdded_ is false. Will
|
|
* be null when this.isAdded_ is false.
|
|
* @type {?function}
|
|
* @private
|
|
*/
|
|
this.centerListener_ = null;
|
|
|
|
/**
|
|
* The map-resize event listener. Will be null when this.isAdded_ is false.
|
|
* @type {?function}
|
|
* @private
|
|
*/
|
|
this.resizeListener_ = null;
|
|
|
|
/**
|
|
* If true, the map size has changed and this.resizeHandler_ must be called
|
|
* on the next update.
|
|
* @type {boolean}
|
|
* @private
|
|
*/
|
|
this.needsResize_ = true;
|
|
|
|
/**
|
|
* A browser-defined id for the currently requested callback. Null when no
|
|
* callback is queued.
|
|
* @type {?number}
|
|
* @private
|
|
*/
|
|
this.requestAnimationFrameId_ = null;
|
|
|
|
var canvas = document.createElement('canvas');
|
|
canvas.style.position = 'absolute';
|
|
canvas.style.top = 0;
|
|
canvas.style.left = 0;
|
|
canvas.style.pointerEvents = 'none';
|
|
|
|
/**
|
|
* The canvas element.
|
|
* @type {!HTMLCanvasElement}
|
|
*/
|
|
this.canvas = canvas;
|
|
|
|
/**
|
|
* Simple bind for functions with no args for bind-less browsers (Safari).
|
|
* @param {Object} thisArg The this value used for the target function.
|
|
* @param {function} func The function to be bound.
|
|
*/
|
|
function simpleBindShim(thisArg, func) {
|
|
return function() { func.apply(thisArg); };
|
|
}
|
|
|
|
/**
|
|
* A reference to this.repositionCanvas_ with this bound as its this value.
|
|
* @type {function}
|
|
* @private
|
|
*/
|
|
this.repositionFunction_ = simpleBindShim(this, this.repositionCanvas_);
|
|
|
|
/**
|
|
* A reference to this.resize_ with this bound as its this value.
|
|
* @type {function}
|
|
* @private
|
|
*/
|
|
this.resizeFunction_ = simpleBindShim(this, this.resize_);
|
|
|
|
/**
|
|
* A reference to this.update_ with this bound as its this value.
|
|
* @type {function}
|
|
* @private
|
|
*/
|
|
this.requestUpdateFunction_ = simpleBindShim(this, this.update_);
|
|
|
|
// set provided options, if any
|
|
if (opt_options) {
|
|
this.setOptions(opt_options);
|
|
}
|
|
}
|
|
|
|
CanvasLayer.prototype = new google.maps.OverlayView();
|
|
|
|
/**
|
|
* The default MapPane to contain the canvas.
|
|
* @type {string}
|
|
* @const
|
|
* @private
|
|
*/
|
|
CanvasLayer.DEFAULT_PANE_NAME_ = 'overlayLayer';
|
|
|
|
/**
|
|
* Transform CSS property name, with vendor prefix if required. If browser
|
|
* does not support transforms, property will be ignored.
|
|
* @type {string}
|
|
* @const
|
|
* @private
|
|
*/
|
|
CanvasLayer.CSS_TRANSFORM_ = (function() {
|
|
var div = document.createElement('div');
|
|
var transformProps = [
|
|
'transform',
|
|
'WebkitTransform',
|
|
'MozTransform',
|
|
'OTransform',
|
|
'msTransform'
|
|
];
|
|
for (var i = 0; i < transformProps.length; i++) {
|
|
var prop = transformProps[i];
|
|
if (div.style[prop] !== undefined) {
|
|
return prop;
|
|
}
|
|
}
|
|
|
|
// return unprefixed version by default
|
|
return transformProps[0];
|
|
})();
|
|
|
|
/**
|
|
* The requestAnimationFrame function, with vendor-prefixed or setTimeout-based
|
|
* fallbacks. MUST be called with window as thisArg.
|
|
* @type {function}
|
|
* @param {function} callback The function to add to the frame request queue.
|
|
* @return {number} The browser-defined id for the requested callback.
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.requestAnimFrame_ =
|
|
window.requestAnimationFrame ||
|
|
window.webkitRequestAnimationFrame ||
|
|
window.mozRequestAnimationFrame ||
|
|
window.oRequestAnimationFrame ||
|
|
window.msRequestAnimationFrame ||
|
|
function(callback) {
|
|
return window.setTimeout(callback, 1000 / 60);
|
|
};
|
|
|
|
/**
|
|
* The cancelAnimationFrame function, with vendor-prefixed fallback. Does not
|
|
* fall back to clearTimeout as some platforms implement requestAnimationFrame
|
|
* but not cancelAnimationFrame, and the cost is an extra frame on onRemove.
|
|
* MUST be called with window as thisArg.
|
|
* @type {function}
|
|
* @param {number=} requestId The id of the frame request to cancel.
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.cancelAnimFrame_ =
|
|
window.cancelAnimationFrame ||
|
|
window.webkitCancelAnimationFrame ||
|
|
window.mozCancelAnimationFrame ||
|
|
window.oCancelAnimationFrame ||
|
|
window.msCancelAnimationFrame ||
|
|
function(requestId) {};
|
|
|
|
/**
|
|
* Sets any options provided. See CanvasLayerOptions for more information.
|
|
* @param {CanvasLayerOptions} options The options to set.
|
|
*/
|
|
CanvasLayer.prototype.setOptions = function(options) {
|
|
if (options.animate !== undefined) {
|
|
this.setAnimate(options.animate);
|
|
}
|
|
|
|
if (options.paneName !== undefined) {
|
|
this.setPane(options.paneName);
|
|
}
|
|
|
|
if (options.updateHandler !== undefined) {
|
|
this.setUpdateHandler(options.updateHandler);
|
|
}
|
|
|
|
if (options.resizeHandler !== undefined) {
|
|
this.setResizeHandler(options.resizeHandler);
|
|
}
|
|
|
|
if(options.readyHandler) {
|
|
this.readyHandler = options.readyHandler;
|
|
}
|
|
|
|
};
|
|
|
|
/**
|
|
* Set the animated state of the layer. If true, updateHandler will be called
|
|
* repeatedly, once per frame. If false, updateHandler will only be called when
|
|
* a map property changes that could require the canvas content to be redrawn.
|
|
* @param {boolean} animate Whether the canvas is animated.
|
|
*/
|
|
CanvasLayer.prototype.setAnimate = function(animate) {
|
|
this.isAnimated_ = !!animate;
|
|
|
|
if (this.isAnimated_) {
|
|
this.scheduleUpdate();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @return {boolean} Whether the canvas is animated.
|
|
*/
|
|
CanvasLayer.prototype.isAnimated = function() {
|
|
return this.isAnimated_;
|
|
};
|
|
|
|
/**
|
|
* Set the MapPane in which this layer will be displayed, by name. See
|
|
* {@code google.maps.MapPanes} for the panes available.
|
|
* @param {string} paneName The name of the desired MapPane.
|
|
*/
|
|
CanvasLayer.prototype.setPaneName = function(paneName) {
|
|
this.paneName_ = paneName;
|
|
|
|
this.setPane_();
|
|
};
|
|
|
|
/**
|
|
* Set the opacity for the canvas.
|
|
*
|
|
* @param {number} opacity The opacity of the canvas
|
|
*/
|
|
CanvasLayer.prototype.setOpacity = function (opacity) {
|
|
this.canvas.style.opacity = opacity;
|
|
};
|
|
|
|
/**
|
|
* Get the canvases opacity.
|
|
*
|
|
* @return {number} The opacity of the canvas
|
|
*/
|
|
CanvasLayer.prototype.getOpacity = function () {
|
|
return this.canvas.style.opacity;
|
|
};
|
|
|
|
/**
|
|
* @return {string} The name of the current container pane.
|
|
*/
|
|
CanvasLayer.prototype.getPaneName = function() {
|
|
return this.paneName_;
|
|
};
|
|
|
|
/**
|
|
* Adds the canvas to the specified container pane. Since this is guaranteed to
|
|
* execute only after onAdd is called, this is when paneName's existence is
|
|
* checked (and an error is thrown if it doesn't exist).
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.setPane_ = function() {
|
|
if (!this.isAdded_) {
|
|
return;
|
|
}
|
|
|
|
// onAdd has been called, so panes can be used
|
|
var panes = this.getPanes();
|
|
if (!panes[this.paneName_]) {
|
|
throw new Error('"' + this.paneName_ + '" is not a valid MapPane name.');
|
|
}
|
|
|
|
panes[this.paneName_].appendChild(this.canvas);
|
|
};
|
|
|
|
/**
|
|
* Set a function that will be called whenever the parent map and the overlay's
|
|
* canvas have been resized. If opt_resizeHandler is null or unspecified, any
|
|
* existing callback is removed.
|
|
* @param {?function=} opt_resizeHandler The resize callback function.
|
|
*/
|
|
CanvasLayer.prototype.setResizeHandler = function(opt_resizeHandler) {
|
|
this.resizeHandler_ = opt_resizeHandler;
|
|
};
|
|
|
|
/**
|
|
* Set a function that will be called when a repaint of the canvas is required.
|
|
* If opt_updateHandler is null or unspecified, any existing callback is
|
|
* removed.
|
|
* @param {?function=} opt_updateHandler The update callback function.
|
|
*/
|
|
CanvasLayer.prototype.setUpdateHandler = function(opt_updateHandler) {
|
|
this.updateHandler_ = opt_updateHandler;
|
|
};
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
CanvasLayer.prototype.onAdd = function() {
|
|
if (this.isAdded_) {
|
|
return;
|
|
}
|
|
|
|
this.isAdded_ = true;
|
|
this.setPane_();
|
|
|
|
this.resizeListener_ = google.maps.event.addListener(this.getMap(),
|
|
'resize', this.resizeFunction_);
|
|
this.centerListener_ = google.maps.event.addListener(this.getMap(),
|
|
'center_changed', this.repositionFunction_);
|
|
|
|
this.resize_();
|
|
this.repositionCanvas_();
|
|
this.readyHandler && this.readyHandler();
|
|
};
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
CanvasLayer.prototype.onRemove = function() {
|
|
if (!this.isAdded_) {
|
|
return;
|
|
}
|
|
|
|
this.isAdded_ = false;
|
|
this.topLeft_ = null;
|
|
|
|
// remove canvas and listeners for pan and resize from map
|
|
this.canvas.parentElement.removeChild(this.canvas);
|
|
if (this.centerListener_) {
|
|
google.maps.event.removeListener(this.centerListener_);
|
|
this.centerListener_ = null;
|
|
}
|
|
if (this.resizeListener_) {
|
|
google.maps.event.removeListener(this.resizeListener_);
|
|
this.resizeListener_ = null;
|
|
}
|
|
|
|
// cease canvas update callbacks
|
|
if (this.requestAnimationFrameId_) {
|
|
this.cancelAnimFrame_.call(window, this.requestAnimationFrameId_);
|
|
this.requestAnimationFrameId_ = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* The internal callback for resize events that resizes the canvas to keep the
|
|
* map properly covered.
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.resize_ = function() {
|
|
// TODO(bckenny): it's common to use a smaller canvas but use CSS to scale
|
|
// what is drawn by the browser to save on fill rate. Add an option to do
|
|
// this.
|
|
|
|
if (!this.isAdded_) {
|
|
return;
|
|
}
|
|
|
|
var map = this.getMap();
|
|
var width = map.getDiv().offsetWidth;
|
|
var height = map.getDiv().offsetHeight;
|
|
var oldWidth = this.canvas.width;
|
|
var oldHeight = this.canvas.height;
|
|
|
|
// resizing may allocate a new back buffer, so do so conservatively
|
|
if (oldWidth !== width || oldHeight !== height) {
|
|
this.canvas.width = width;
|
|
this.canvas.height = height;
|
|
this.canvas.style.width = width + 'px';
|
|
this.canvas.style.height = height + 'px';
|
|
|
|
this.needsResize_ = true;
|
|
this.scheduleUpdate();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
CanvasLayer.prototype.draw = function() {
|
|
this.repositionCanvas_();
|
|
};
|
|
|
|
/**
|
|
* Internal callback for map view changes. Since the Maps API moves the overlay
|
|
* along with the map, this function calculates the opposite translation to
|
|
* keep the canvas in place.
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.repositionCanvas_ = function() {
|
|
// TODO(bckenny): *should* only be executed on RAF, but in current browsers
|
|
// this causes noticeable hitches in map and overlay relative
|
|
// positioning.
|
|
|
|
var bounds = this.getMap().getBounds();
|
|
this.topLeft_ = new google.maps.LatLng(bounds.getNorthEast().lat(),
|
|
bounds.getSouthWest().lng());
|
|
|
|
// canvas position relative to draggable map's conatainer depends on
|
|
// overlayView's projection, not the map's
|
|
var projection = this.getProjection();
|
|
var divTopLeft = projection.fromLatLngToDivPixel(this.topLeft_);
|
|
|
|
// when the zoom level is low, more than one map can be shown in the screen
|
|
// so the canvas should be attach to the map with more are in the screen
|
|
var mapSize = (1 << this.getMap().getZoom())*256;
|
|
if (Math.abs(divTopLeft.x) > mapSize) {
|
|
divTopLeft.x -= mapSize;
|
|
}
|
|
this.canvas.style[CanvasLayer.CSS_TRANSFORM_] = 'translate(' +
|
|
Math.round(divTopLeft.x) + 'px,' + Math.round(divTopLeft.y) + 'px)';
|
|
|
|
this.scheduleUpdate();
|
|
};
|
|
|
|
/**
|
|
* Internal callback that serves as main animation scheduler via
|
|
* requestAnimationFrame. Calls resize and update callbacks if set, and
|
|
* schedules the next frame if overlay is animated.
|
|
* @private
|
|
*/
|
|
CanvasLayer.prototype.update_ = function() {
|
|
this.requestAnimationFrameId_ = null;
|
|
|
|
if (!this.isAdded_) {
|
|
return;
|
|
}
|
|
|
|
if (this.isAnimated_) {
|
|
this.scheduleUpdate();
|
|
}
|
|
|
|
if (this.needsResize_ && this.resizeHandler_) {
|
|
this.needsResize_ = false;
|
|
this.resizeHandler_();
|
|
}
|
|
|
|
if (this.updateHandler_) {
|
|
this.updateHandler_();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* A convenience method to get the current LatLng coordinate of the top left of
|
|
* the current view of the map.
|
|
* @return {google.maps.LatLng} The top left coordinate.
|
|
*/
|
|
CanvasLayer.prototype.getTopLeft = function() {
|
|
return this.topLeft_;
|
|
};
|
|
|
|
/**
|
|
* Schedule a requestAnimationFrame callback to updateHandler. If one is
|
|
* already scheduled, there is no effect.
|
|
*/
|
|
CanvasLayer.prototype.scheduleUpdate = function() {
|
|
if (this.isAdded_ && !this.requestAnimationFrameId_) {
|
|
this.requestAnimationFrameId_ =
|
|
this.requestAnimFrame_.call(window, this.requestUpdateFunction_);
|
|
}
|
|
};
|
|
|
|
module.exports = CanvasLayer;
|
|
|
|
},{}],6:[function(require,module,exports){
|
|
/*
|
|
====================
|
|
canvas setup for drawing tiles
|
|
====================
|
|
*/
|
|
|
|
function CanvasTileLayer(canvas_setup, render) {
|
|
this.tileSize = new google.maps.Size(256, 256);
|
|
this.maxZoom = 19;
|
|
this.name = "Tile #s";
|
|
this.alt = "Canvas tile layer";
|
|
this.tiles = {};
|
|
this.canvas_setup = canvas_setup;
|
|
this.render = render;
|
|
if (!render) {
|
|
this.render = canvas_setup;
|
|
}
|
|
}
|
|
|
|
|
|
// create a tile with a canvas element
|
|
CanvasTileLayer.prototype.create_tile_canvas = function (coord, zoom, ownerDocument) {
|
|
|
|
// create canvas and reset style
|
|
var canvas = ownerDocument.createElement('canvas');
|
|
var hit_canvas = ownerDocument.createElement('canvas');
|
|
canvas.style.border = hit_canvas.style.border = "none";
|
|
canvas.style.margin = hit_canvas.style.margin = "0";
|
|
canvas.style.padding = hit_canvas.style.padding = "0";
|
|
|
|
// prepare canvas and context sizes
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.width = canvas.width = this.tileSize.width;
|
|
ctx.height = canvas.height = this.tileSize.height;
|
|
|
|
var hit_ctx = hit_canvas.getContext('2d');
|
|
hit_canvas.width = hit_ctx.width = this.tileSize.width;
|
|
hit_canvas.height = hit_ctx.height = this.tileSize.height;
|
|
|
|
//set unique id
|
|
var tile_id = coord.x + '_' + coord.y + '_' + zoom;
|
|
|
|
canvas.setAttribute('id', tile_id);
|
|
hit_canvas.setAttribute('id', tile_id);
|
|
|
|
if (tile_id in this.tiles)
|
|
delete this.tiles[tile_id];
|
|
|
|
this.tiles[tile_id] = {canvas:canvas, ctx:ctx, hit_canvas:hit_canvas, hit_ctx:hit_ctx, coord:coord, zoom:zoom, primitives:null};
|
|
|
|
// custom setup
|
|
//if (tile_id == '19295_24654_16'){
|
|
if (this.canvas_setup)
|
|
this.canvas_setup(this.tiles[tile_id], coord, zoom);
|
|
//}
|
|
return canvas;
|
|
|
|
}
|
|
|
|
|
|
CanvasTileLayer.prototype.each = function (callback) {
|
|
for (var t in this.tiles) {
|
|
var tile = this.tiles[t];
|
|
callback(tile);
|
|
}
|
|
}
|
|
|
|
CanvasTileLayer.prototype.recreate = function () {
|
|
for (var t in this.tiles) {
|
|
var tile = this.tiles[t];
|
|
this.canvas_setup(tile, tile.coord, tile.zoom);
|
|
}
|
|
};
|
|
|
|
CanvasTileLayer.prototype.redraw_tile = function (tile) {
|
|
this.render(tile, tile.coord, tile.zoom);
|
|
};
|
|
|
|
CanvasTileLayer.prototype.redraw = function () {
|
|
for (var t in this.tiles) {
|
|
var tile = this.tiles[t];
|
|
this.render(tile, tile.coord, tile.zoom);
|
|
}
|
|
};
|
|
|
|
// could be called directly...
|
|
CanvasTileLayer.prototype.getTile = function (coord, zoom, ownerDocument) {
|
|
return this.create_tile_canvas(coord, zoom, ownerDocument);
|
|
};
|
|
|
|
CanvasTileLayer.prototype.releaseTile = function (tile) {
|
|
var id = tile.getAttribute('id');
|
|
delete this.tiles[id];
|
|
};
|
|
|
|
module.exports = CanvasTileLayer;
|
|
|
|
},{}],7:[function(require,module,exports){
|
|
function GMapsTileLoader() {
|
|
}
|
|
|
|
|
|
GMapsTileLoader.prototype = {
|
|
|
|
_initTileLoader: function(map, projection) {
|
|
this._map = map;
|
|
this._projection = projection;
|
|
this._tiles = {};
|
|
this._tilesLoading = {};
|
|
this._tilesToLoad = 0;
|
|
this._updateTiles = this._updateTiles.bind(this);
|
|
this._listeners = [];
|
|
this._listeners.push(
|
|
google.maps.event.addListener(this._map, 'dragend', this._updateTiles),
|
|
google.maps.event.addListener(this._map, 'zoom_changed', this._updateTiles)
|
|
);
|
|
this.tileSize = 256;
|
|
this._updateTiles();
|
|
},
|
|
|
|
_removeTileLoader: function() {
|
|
this._listeners.forEach(function (listener) {
|
|
google.maps.event.removeListener(listener);
|
|
});
|
|
|
|
this._removeTiles();
|
|
},
|
|
|
|
_removeTiles: function () {
|
|
for (var key in this._tiles) {
|
|
this._removeTile(key);
|
|
}
|
|
},
|
|
|
|
_reloadTiles: function() {
|
|
this._removeTiles();
|
|
this._updateTiles();
|
|
},
|
|
|
|
_updateTiles: function () {
|
|
|
|
if (!this._map) { return; }
|
|
|
|
var bounds = this._map.getBounds();
|
|
var zoom = this._map.getZoom();
|
|
var tileSize = this.tileSize;
|
|
var mzoom = (1 << zoom);
|
|
|
|
var topLeft = new google.maps.LatLng(
|
|
bounds.getNorthEast().lat(),
|
|
bounds.getSouthWest().lng()
|
|
);
|
|
|
|
var bottomRigth = new google.maps.LatLng(
|
|
bounds.getSouthWest().lat(),
|
|
bounds.getNorthEast().lng()
|
|
);
|
|
|
|
|
|
this._projection = this._map.getProjection();
|
|
var divTopLeft = this._projection.fromLatLngToPoint(topLeft);
|
|
var divBottomRight = this._projection.fromLatLngToPoint(bottomRigth);
|
|
|
|
|
|
var nwTilePoint = new google.maps.Point(
|
|
Math.floor(divTopLeft.x*mzoom / tileSize),
|
|
Math.floor(divTopLeft.y*mzoom / tileSize)),
|
|
seTilePoint = new google.maps.Point(
|
|
Math.floor(divBottomRight.x*mzoom / tileSize),
|
|
Math.floor(divBottomRight.y*mzoom / tileSize));
|
|
|
|
|
|
this._addTilesFromCenterOut(nwTilePoint, seTilePoint);
|
|
this._removeOtherTiles(nwTilePoint, seTilePoint);
|
|
},
|
|
|
|
_removeOtherTiles: function (nwTilePoint, seTilePoint) {
|
|
var kArr, x, y, key;
|
|
|
|
var zoom = this._map.getZoom();
|
|
for (key in this._tiles) {
|
|
if (this._tiles.hasOwnProperty(key)) {
|
|
kArr = key.split(':');
|
|
x = parseInt(kArr[0], 10);
|
|
y = parseInt(kArr[1], 10);
|
|
z = parseInt(kArr[2], 10);
|
|
|
|
// remove tile if it's out of bounds
|
|
if (z !== zoom || x < nwTilePoint.x || x > seTilePoint.x || y < nwTilePoint.y || y > seTilePoint.y) {
|
|
this._removeTile(key);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_removeTile: function (key) {
|
|
this.onTileRemoved && this.onTileRemoved(this._tiles[key]);
|
|
delete this._tiles[key];
|
|
delete this._tilesLoading[key];
|
|
},
|
|
|
|
_tileKey: function(tilePoint) {
|
|
return tilePoint.x + ':' + tilePoint.y + ':' + tilePoint.zoom;
|
|
},
|
|
|
|
_tileShouldBeLoaded: function (tilePoint) {
|
|
var k = this._tileKey(tilePoint);
|
|
return !(k in this._tiles) && !(k in this._tilesLoading);
|
|
},
|
|
|
|
_tileLoaded: function(tilePoint, tileData) {
|
|
this._tilesToLoad--;
|
|
var k = tilePoint.x + ':' + tilePoint.y + ':' + tilePoint.zoom
|
|
this._tiles[k] = tileData;
|
|
delete this._tilesLoading[k];
|
|
if(this._tilesToLoad === 0) {
|
|
this.onTilesLoaded && this.onTilesLoaded();
|
|
}
|
|
},
|
|
|
|
getTilePos: function (tilePoint) {
|
|
var limit = (1 << this._map.getZoom());
|
|
// wrap tile
|
|
tilePoint = {
|
|
x: ((tilePoint.x % limit) + limit) % limit,
|
|
y: tilePoint.y
|
|
};
|
|
|
|
tilePoint = new google.maps.Point(
|
|
tilePoint.x * this.tileSize,
|
|
tilePoint.y * this.tileSize
|
|
);
|
|
|
|
var bounds = this._map.getBounds();
|
|
var topLeft = new google.maps.LatLng(
|
|
bounds.getNorthEast().lat(),
|
|
bounds.getSouthWest().lng()
|
|
);
|
|
|
|
var divTopLeft = this._map.getProjection().fromLatLngToPoint(topLeft);
|
|
zoom = (1 << this._map.getZoom());
|
|
divTopLeft.x = divTopLeft.x * zoom;
|
|
divTopLeft.y = divTopLeft.y * zoom;
|
|
|
|
return new google.maps.Point(
|
|
tilePoint.x - divTopLeft.x,
|
|
tilePoint.y - divTopLeft.y
|
|
);
|
|
},
|
|
|
|
_addTilesFromCenterOut: function (nwTilePoint, seTilePoint) {
|
|
var queue = [],
|
|
center = new google.maps.Point(
|
|
(nwTilePoint.x + seTilePoint.x) * 0.5,
|
|
(nwTilePoint.y + seTilePoint.y) * 0.5
|
|
),
|
|
zoom = this._map.getZoom();
|
|
|
|
var j, i, point;
|
|
|
|
for (j = nwTilePoint.y; j <= seTilePoint.y; j++) {
|
|
for (i = nwTilePoint.x; i <= seTilePoint.x; i++) {
|
|
point = new google.maps.Point (i, j);
|
|
point.zoom = zoom;
|
|
|
|
if (this._tileShouldBeLoaded(point)) {
|
|
queue.push(point);
|
|
}
|
|
}
|
|
}
|
|
|
|
var tilesToLoad = queue.length;
|
|
|
|
if (tilesToLoad === 0) { return; }
|
|
|
|
function distanceToCenterSq(point) {
|
|
var dx = point.x - center.x;
|
|
var dy = point.y - center.y;
|
|
return dx * dx + dy * dy;
|
|
}
|
|
|
|
// load tiles in order of their distance to center
|
|
queue.sort(function (a, b) {
|
|
return distanceToCenterSq(a) - distanceToCenterSq(b);
|
|
});
|
|
|
|
this._tilesToLoad += tilesToLoad;
|
|
|
|
for (i = 0; i < tilesToLoad; i++) {
|
|
var t = queue[i];
|
|
var k = this._tileKey(t);
|
|
this._tilesLoading[k] = t;
|
|
// events
|
|
if (this.onTileAdded) {
|
|
this.onTileAdded(t);
|
|
}
|
|
}
|
|
|
|
this.onTilesLoading && this.onTilesLoading();
|
|
}
|
|
|
|
}
|
|
|
|
module.exports = GMapsTileLoader;
|
|
|
|
},{}],8:[function(require,module,exports){
|
|
var gmaps = {};
|
|
if (typeof google !== 'undefined' && typeof google.maps !== 'undefined') {
|
|
gmaps = require('./torque');
|
|
gmaps.GMapsTileLoader = require('./gmaps_tileloader_mixin');
|
|
}
|
|
module.exports = gmaps;
|
|
|
|
},{"./gmaps_tileloader_mixin":7,"./torque":9}],9:[function(require,module,exports){
|
|
(function (global){
|
|
var carto = global.carto || require('carto');
|
|
var torque = require('../');
|
|
var CanvasLayer = require('./CanvasLayer');
|
|
var CanvasTileLayer = require('./canvas_tile_layer');
|
|
var GMapsTileLoader = require('./gmaps_tileloader_mixin');
|
|
|
|
function GMapsTorqueLayer(options) {
|
|
var self = this;
|
|
if (!torque.isBrowserSupported()) {
|
|
throw new Error("browser is not supported by torque");
|
|
}
|
|
this.key = 0;
|
|
this.shader = null;
|
|
this.ready = false;
|
|
this.options = torque.extend({}, options);
|
|
this.options = torque.extend({
|
|
provider: 'windshaft',
|
|
renderer: 'point',
|
|
resolution: 2,
|
|
steps: 100,
|
|
visible: true
|
|
}, this.options);
|
|
if (options.cartocss) {
|
|
torque.extend(this.options,
|
|
torque.common.TorqueLayer.optionsFromCartoCSS(options.cartocss));
|
|
}
|
|
|
|
if(options.tileJSON) this.options.provider = "tileJSON";
|
|
|
|
this.hidden = !this.options.visible;
|
|
|
|
this.animator = new torque.Animator(function(time) {
|
|
var k = time | 0;
|
|
if(self.key !== k) {
|
|
self.setKey(k);
|
|
}
|
|
}, torque.extend(torque.clone(this.options), {
|
|
onPause: function() {
|
|
self.fire('pause');
|
|
},
|
|
onStop: function() {
|
|
self.fire('stop');
|
|
},
|
|
onStart: function() {
|
|
self.fire('play');
|
|
}
|
|
}));
|
|
|
|
this.play = this.animator.start.bind(this.animator);
|
|
this.stop = this.animator.stop.bind(this.animator);
|
|
this.pause = this.animator.pause.bind(this.animator);
|
|
this.toggle = this.animator.toggle.bind(this.animator);
|
|
this.setDuration = this.animator.duration.bind(this.animator);
|
|
this.isRunning = this.animator.isRunning.bind(this.animator);
|
|
|
|
|
|
CanvasLayer.call(this, {
|
|
map: this.options.map,
|
|
//resizeHandler: this.redraw,
|
|
animate: false,
|
|
updateHandler: this.render,
|
|
readyHandler: this.initialize
|
|
});
|
|
|
|
}
|
|
|
|
/**
|
|
* torque layer
|
|
*/
|
|
GMapsTorqueLayer.prototype = torque.extend({},
|
|
CanvasLayer.prototype,
|
|
GMapsTileLoader.prototype,
|
|
torque.Event,
|
|
{
|
|
|
|
providers: {
|
|
'sql_api': torque.providers.json,
|
|
'url_template': torque.providers.JsonArray,
|
|
'windshaft': torque.providers.windshaft,
|
|
'tileJSON': torque.providers.tileJSON
|
|
},
|
|
|
|
renderers: {
|
|
'point': torque.renderer.Point,
|
|
'pixel': torque.renderer.Rectangle
|
|
},
|
|
|
|
initialize: function() {
|
|
var self = this;
|
|
|
|
this.onTileAdded = this.onTileAdded.bind(this);
|
|
|
|
this.options.ready = function() {
|
|
self.fire("change:bounds", {
|
|
bounds: self.provider.getBounds()
|
|
});
|
|
self.animator.steps(self.provider.getSteps());
|
|
self.animator.rescale();
|
|
self.fire('change:steps', {
|
|
steps: self.provider.getSteps()
|
|
});
|
|
self.setKey(self.key);
|
|
};
|
|
|
|
this.provider = new this.providers[this.options.provider](this.options);
|
|
this.renderer = new this.renderers[this.options.renderer](this.getCanvas(), this.options);
|
|
this.renderer.options.errorCallback = this.options.errorCallback;
|
|
|
|
// this listener should be before tile loader
|
|
this._cacheListener = google.maps.event.addListener(this.options.map, 'zoom_changed', function() {
|
|
self.renderer && self.renderer.clearSpriteCache();
|
|
});
|
|
|
|
this._initTileLoader(this.options.map, this.getProjection());
|
|
|
|
if (this.shader) {
|
|
this.renderer.setShader(this.shader);
|
|
}
|
|
|
|
},
|
|
|
|
hide: function() {
|
|
if(this.hidden) return this;
|
|
this.pause();
|
|
this.clear();
|
|
this.hidden = true;
|
|
return this;
|
|
},
|
|
|
|
show: function() {
|
|
if(!this.hidden) return this;
|
|
this.hidden = false;
|
|
this.play();
|
|
if (this.options.steps === 1){
|
|
this.redraw();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
setSQL: function(sql) {
|
|
if (this.provider.options.named_map) throw new Error("SQL queries on named maps are read-only");
|
|
if (!this.provider || !this.provider.setSQL) {
|
|
throw new Error("this provider does not support SQL");
|
|
}
|
|
this.provider.setSQL(sql);
|
|
this._reloadTiles();
|
|
return this;
|
|
},
|
|
|
|
setBlendMode: function(_) {
|
|
this.renderer && this.renderer.setBlendMode(_);
|
|
this.redraw();
|
|
},
|
|
|
|
setSteps: function(steps) {
|
|
this.provider && this.provider.setSteps(steps);
|
|
this.animator && this.animator.steps(steps);
|
|
this._reloadTiles();
|
|
},
|
|
|
|
setColumn: function(column, isTime) {
|
|
this.provider && this.provider.setColumn(column, isTime);
|
|
this._reloadTiles();
|
|
},
|
|
|
|
getTimeBounds: function() {
|
|
return this.provider && this.provider.getKeySpan();
|
|
},
|
|
|
|
getCanvas: function() {
|
|
return this.canvas;
|
|
},
|
|
|
|
// for each tile shown on the map request the data
|
|
onTileAdded: function(t) {
|
|
var self = this;
|
|
this.provider.getTileData(t, t.zoom, function(tileData) {
|
|
// don't load tiles that are not being shown
|
|
if (t.zoom !== self.options.map.getZoom()) return;
|
|
self._tileLoaded(t, tileData);
|
|
self.fire('tileLoaded');
|
|
if (tileData) {
|
|
self.redraw();
|
|
}
|
|
});
|
|
},
|
|
|
|
clear: function() {
|
|
var canvas = this.canvas;
|
|
canvas.width = canvas.width;
|
|
},
|
|
|
|
/**
|
|
* render the selectef key
|
|
* don't call this function directly, it's called by
|
|
* requestAnimationFrame. Use redraw to refresh it
|
|
*/
|
|
render: function() {
|
|
if(this.hidden) return;
|
|
var t, tile, pos;
|
|
var canvas = this.canvas;
|
|
this.renderer.clearCanvas();
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
// renders only a "frame"
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
if (tile) {
|
|
pos = this.getTilePos(tile.coord);
|
|
ctx.setTransform(1, 0, 0, 1, pos.x, pos.y);
|
|
this.renderer.renderTile(tile, this.key);
|
|
}
|
|
}
|
|
this.renderer.applyFilters();
|
|
},
|
|
|
|
getActivePointsBBox: function(step) {
|
|
var positions = [];
|
|
var tileMax = this.options.resolution * (256/this.options.resolution - 1);
|
|
for(var t in this._tiles) {
|
|
var tile = this._tiles[t];
|
|
positions = positions.concat(this.renderer.getActivePointsBBox(tile, step));
|
|
}
|
|
return positions;
|
|
},
|
|
|
|
/**
|
|
* set key to be shown. If it's a single value
|
|
* it renders directly, if it's an array it renders
|
|
* accumulated
|
|
*/
|
|
setKey: function(key) {
|
|
this.key = key;
|
|
this.animator.step(key);
|
|
this.redraw();
|
|
this.fire('change:time', { time: this.getTime(), step: this.key });
|
|
},
|
|
|
|
/**
|
|
* helper function, does the same than ``setKey`` but only
|
|
* accepts scalars.
|
|
*/
|
|
setStep: function(time) {
|
|
if(time === undefined || time.length !== undefined) {
|
|
throw new Error("setTime only accept scalars");
|
|
}
|
|
this.setKey(time);
|
|
},
|
|
|
|
/**
|
|
* transform from animation step to Date object
|
|
* that contains the animation time
|
|
*
|
|
* ``step`` should be between 0 and ``steps - 1``
|
|
*/
|
|
stepToTime: function(step) {
|
|
if (!this.provider) return 0;
|
|
var times = this.provider.getKeySpan();
|
|
var time = times.start + (times.end - times.start)*(step/this.provider.getSteps());
|
|
return new Date(time);
|
|
},
|
|
|
|
timeToStep: function(timestamp) {
|
|
if (typeof timestamp === "Date") timestamp = timestamp.getTime();
|
|
if (!this.provider) return 0;
|
|
var times = this.provider.getKeySpan();
|
|
var step = (this.provider.getSteps() * (timestamp - times.start)) / (times.end - times.start);
|
|
return step;
|
|
},
|
|
|
|
getStep: function() {
|
|
return this.key;
|
|
},
|
|
|
|
/**
|
|
* returns the animation time defined by the data
|
|
* in the defined column. Date object
|
|
*/
|
|
getTime: function() {
|
|
return this.stepToTime(this.key);
|
|
},
|
|
|
|
/**
|
|
* set the cartocss for the current renderer
|
|
*/
|
|
setCartoCSS: function(cartocss) {
|
|
if (this.provider && this.provider.options.named_map) throw new Error("CartoCSS style on named maps is read-only");
|
|
var shader = new carto.RendererJS().render(cartocss);
|
|
this.shader = shader;
|
|
if (this.renderer) {
|
|
this.renderer.setShader(shader);
|
|
}
|
|
|
|
// provider options
|
|
var options = torque.common.TorqueLayer.optionsFromLayer(shader.findLayer({ name: 'Map' }));
|
|
this.provider && this.provider.setCartoCSS && this.provider.setCartoCSS(cartocss);
|
|
if(this.provider && this.provider.setOptions(options)) {
|
|
this._reloadTiles();
|
|
}
|
|
torque.extend(this.options, options);
|
|
|
|
// animator options
|
|
if (options.animationDuration) {
|
|
this.animator.duration(options.animationDuration);
|
|
}
|
|
|
|
this.redraw();
|
|
return this;
|
|
},
|
|
|
|
redraw: function() {
|
|
this.scheduleUpdate();
|
|
},
|
|
|
|
onRemove: function() {
|
|
this.fire('remove');
|
|
CanvasLayer.prototype.onRemove.call(this);
|
|
this.animator.stop();
|
|
this._removeTileLoader();
|
|
google.maps.event.removeListener(this._cacheListener);
|
|
},
|
|
|
|
/**
|
|
* return an array with the values for all the pixels active for the step
|
|
*/
|
|
getValues: function(step) {
|
|
var values = [];
|
|
step = step === undefined ? this.key: step;
|
|
var t, tile;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
this.renderer.getValues(tile, step, values);
|
|
}
|
|
return values;
|
|
},
|
|
|
|
getValueForPos: function(x, y, step) {
|
|
step = step === undefined ? this.key: step;
|
|
var t, tile, pos, value = null, xx, yy;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
pos = this.getTilePos(tile.coord);
|
|
xx = x - pos.x;
|
|
yy = y - pos.y;
|
|
if (xx >= 0 && yy >= 0 && xx < this.renderer.TILE_SIZE && yy <= this.renderer.TILE_SIZE) {
|
|
value = this.renderer.getValueFor(tile, step, xx, yy);
|
|
}
|
|
if (value !== null) {
|
|
return value;
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
getValueForBBox: function(x, y, w, h) {
|
|
var xf = x + w, yf = y + h;
|
|
var sum = 0;
|
|
for(_y = y; y<yf; y+=this.options.resolution){
|
|
for(_x = x; x<xf; x+=this.options.resolution){
|
|
var thisValue = this.getValueForPos(_x,_y);
|
|
if (thisValue){
|
|
var bb = thisValue.bbox;
|
|
var proj = this.getProjection()
|
|
var xy = proj.fromLatLngToContainerPixel(new google.maps.LatLng(bb[1].lat, bb[1].lon));
|
|
if(xy.x < xf && xy.y < yf){
|
|
sum += thisValue.value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return sum;
|
|
},
|
|
|
|
error: function (callback) {
|
|
this.options.errorCallback = callback;
|
|
return this;
|
|
}
|
|
|
|
});
|
|
|
|
|
|
|
|
function GMapsTiledTorqueLayer(options) {
|
|
this.options = torque.extend({}, options);
|
|
CanvasTileLayer.call(this, this._loadTile.bind(this), this.drawTile.bind(this));
|
|
this.initialize(options);
|
|
}
|
|
|
|
GMapsTiledTorqueLayer.prototype = torque.extend({}, CanvasTileLayer.prototype, {
|
|
|
|
providers: {
|
|
'sql_api': torque.providers.json,
|
|
'url_template': torque.providers.JsonArray
|
|
},
|
|
|
|
renderers: {
|
|
'point': torque.renderer.Point,
|
|
'pixel': torque.renderer.Rectangle
|
|
},
|
|
|
|
initialize: function(options) {
|
|
var self = this;
|
|
this.key = 0;
|
|
|
|
this.options.renderer = this.options.renderer || 'pixel';
|
|
this.options.provider = this.options.provider || 'sql_api';
|
|
|
|
this.provider = new this.providers[this.options.provider](options);
|
|
this.renderer = new this.renderers[this.options.renderer](null, options);
|
|
|
|
},
|
|
|
|
_tileLoaded: function(tile, tileData) {
|
|
tile.data = tileData;
|
|
this.drawTile(tile);
|
|
},
|
|
|
|
_loadTile: function(tile, coord, zoom) {
|
|
var self = this;
|
|
var limit = 1 << zoom;
|
|
// wrap tile
|
|
var wrappedCoord = {
|
|
x: ((coord.x % limit) + limit) % limit,
|
|
y: coord.y
|
|
};
|
|
|
|
this.provider.getTileData(wrappedCoord, zoom, function(tileData) {
|
|
self._tileLoaded(tile, tileData);
|
|
});
|
|
},
|
|
|
|
drawTile: function (tile) {
|
|
var canvas = tile.canvas;
|
|
if(!tile.data) return;
|
|
canvas.width = canvas.width;
|
|
|
|
this.renderer.setCanvas(canvas);
|
|
|
|
var accum = this.renderer.accumulate(tile.data, this.key);
|
|
this.renderer.renderTileAccum(accum, 0, 0);
|
|
},
|
|
|
|
setKey: function(key) {
|
|
this.key = key;
|
|
this.redraw();
|
|
},
|
|
|
|
/**
|
|
* set the cartocss for the current renderer
|
|
*/
|
|
setCartoCSS: function(cartocss) {
|
|
if (!this.renderer) throw new Error('renderer is not valid');
|
|
return this.renderer.setCartoCSS(cartocss);
|
|
}
|
|
|
|
});
|
|
|
|
module.exports = {
|
|
GMapsTiledTorqueLayer: GMapsTiledTorqueLayer,
|
|
GMapsTorqueLayer: GMapsTorqueLayer
|
|
};
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../":10,"./CanvasLayer":5,"./canvas_tile_layer":6,"./gmaps_tileloader_mixin":7,"carto":undefined}],10:[function(require,module,exports){
|
|
module.exports = require('./core');
|
|
|
|
module.exports.Animator = require('./animator');
|
|
module.exports.cartocss_reference = require('./cartocss_reference');
|
|
module.exports.common = require('./common');
|
|
module.exports.math = require('./math');
|
|
module.exports.Mercator = require('./mercator');
|
|
module.exports.net = require('./request');
|
|
module.exports.renderer = require('./renderer');
|
|
module.exports.providers = require('./provider');
|
|
|
|
require('./leaflet');
|
|
|
|
var gmaps = require('./gmaps');
|
|
module.exports.GMapsTileLoader = gmaps.GMapsTileLoader;
|
|
module.exports.GMapsTorqueLayer = gmaps.GMapsTorqueLayer;
|
|
module.exports.GMapsTiledTorqueLayer = gmaps.GMapsTiledTorqueLayer;
|
|
|
|
},{"./animator":1,"./cartocss_reference":2,"./common":3,"./core":4,"./gmaps":8,"./leaflet":12,"./math":15,"./mercator":16,"./provider":18,"./renderer":24,"./request":28}],11:[function(require,module,exports){
|
|
require('./leaflet_tileloader_mixin');
|
|
|
|
/**
|
|
* full canvas layer implementation for Leaflet
|
|
*/
|
|
|
|
L.CanvasLayer = L.Class.extend({
|
|
|
|
includes: [L.Mixin.Events, L.Mixin.TileLoader],
|
|
|
|
options: {
|
|
minZoom: 0,
|
|
maxZoom: 28,
|
|
tileSize: 256,
|
|
subdomains: 'abc',
|
|
errorTileUrl: '',
|
|
attribution: '',
|
|
zoomOffset: 0,
|
|
opacity: 1,
|
|
unloadInvisibleTiles: L.Browser.mobile,
|
|
updateWhenIdle: L.Browser.mobile,
|
|
tileLoader: false, // installs tile loading events
|
|
zoomAnimation: true
|
|
},
|
|
|
|
initialize: function (options) {
|
|
var self = this;
|
|
options = options || {};
|
|
//this.project = this._project.bind(this);
|
|
this.render = this.render.bind(this);
|
|
L.Util.setOptions(this, options);
|
|
this._canvas = this._createCanvas();
|
|
// backCanvas for zoom animation
|
|
if (this.options.zoomAnimation) {
|
|
this._backCanvas = this._createCanvas();
|
|
}
|
|
this._ctx = this._canvas.getContext('2d');
|
|
this.currentAnimationFrame = -1;
|
|
this.requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
|
|
window.webkitRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) {
|
|
return window.setTimeout(callback, 1000 / 60);
|
|
};
|
|
this.cancelAnimationFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame ||
|
|
window.webkitCancelAnimationFrame || window.msCancelAnimationFrame || function(id) { clearTimeout(id); };
|
|
},
|
|
|
|
_createCanvas: function() {
|
|
var canvas;
|
|
canvas = document.createElement('canvas');
|
|
canvas.style.position = 'absolute';
|
|
canvas.style.top = 0;
|
|
canvas.style.left = 0;
|
|
canvas.style.pointerEvents = "none";
|
|
canvas.style.zIndex = this.options.zIndex || 0;
|
|
var className = 'leaflet-tile-container';
|
|
if (this.options.zoomAnimation) {
|
|
className += ' leaflet-zoom-animated';
|
|
}
|
|
canvas.setAttribute('class', className);
|
|
return canvas;
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
this._map = map;
|
|
|
|
// add container with the canvas to the tile pane
|
|
// the container is moved in the oposite direction of the
|
|
// map pane to keep the canvas always in (0, 0)
|
|
var tilePane = this._map._panes.tilePane;
|
|
var _container = L.DomUtil.create('div', 'leaflet-layer');
|
|
_container.appendChild(this._canvas);
|
|
if (this.options.zoomAnimation) {
|
|
_container.appendChild(this._backCanvas);
|
|
this._backCanvas.style.display = 'none';
|
|
}
|
|
tilePane.appendChild(_container);
|
|
|
|
this._container = _container;
|
|
|
|
// hack: listen to predrag event launched by dragging to
|
|
// set container in position (0, 0) in screen coordinates
|
|
map.dragging._draggable.on('predrag', function() {
|
|
var d = map.dragging._draggable;
|
|
L.DomUtil.setPosition(this._canvas, { x: -d._newPos.x, y: -d._newPos.y });
|
|
}, this);
|
|
|
|
map.on({ 'viewreset': this._reset }, this);
|
|
map.on('move', this.redraw, this);
|
|
map.on('resize', this._reset, this);
|
|
|
|
if (this.options.zoomAnimation) {
|
|
map.on({
|
|
'zoomanim': this._animateZoom,
|
|
'zoomend': this._endZoomAnim,
|
|
'moveend': this._reset
|
|
}, this);
|
|
}
|
|
|
|
if(this.options.tileLoader) {
|
|
this._initTileLoader();
|
|
}
|
|
|
|
this._reset();
|
|
},
|
|
|
|
_animateZoom: function (e) {
|
|
if (!this._animating) {
|
|
this._animating = true;
|
|
}
|
|
var back = this._backCanvas;
|
|
|
|
back.width = this._canvas.width;
|
|
back.height = this._canvas.height;
|
|
|
|
// paint current canvas in back canvas with trasnformation
|
|
var pos = this._canvas._leaflet_pos || { x: 0, y: 0 };
|
|
back.getContext('2d').drawImage(this._canvas, 0, 0);
|
|
|
|
L.DomUtil.setPosition(back, L.DomUtil.getPosition(this._canvas));
|
|
|
|
// hide original
|
|
this._canvas.style.display = 'none';
|
|
back.style.display = 'block';
|
|
var map = this._map;
|
|
var scale = map.getZoomScale(e.zoom);
|
|
var newCenter = map._latLngToNewLayerPoint(map.getCenter(), e.zoom, e.center);
|
|
var oldCenter = map._latLngToNewLayerPoint(e.center, e.zoom, e.center);
|
|
|
|
var origin = {
|
|
x: newCenter.x - oldCenter.x + pos.x,
|
|
y: newCenter.y - oldCenter.y + pos.y,
|
|
};
|
|
|
|
var bg = back;
|
|
var transform = L.DomUtil.TRANSFORM;
|
|
setTimeout(function() {
|
|
bg.style[transform] = L.DomUtil.getTranslateString(origin) + ' scale(' + e.scale + ') ';
|
|
}, 0)
|
|
},
|
|
|
|
_endZoomAnim: function () {
|
|
this._animating = false;
|
|
this._canvas.style.display = 'block';
|
|
this._backCanvas.style.display = 'none';
|
|
this._backCanvas.style[L.DomUtil.TRANSFORM] = '';
|
|
},
|
|
|
|
getCanvas: function() {
|
|
return this._canvas;
|
|
},
|
|
|
|
getAttribution: function() {
|
|
return this.options.attribution;
|
|
},
|
|
|
|
draw: function() {
|
|
return this._reset();
|
|
},
|
|
|
|
onRemove: function (map) {
|
|
this._container.parentNode.removeChild(this._container);
|
|
map.off({
|
|
'viewreset': this._reset,
|
|
'move': this._render,
|
|
'moveend': this._reset,
|
|
'resize': this._reset,
|
|
'zoomanim': this._animateZoom,
|
|
'zoomend': this._endZoomAnim
|
|
}, this);
|
|
},
|
|
|
|
addTo: function (map) {
|
|
map.addLayer(this);
|
|
return this;
|
|
},
|
|
|
|
error: function (callback) {
|
|
this.provider.options.errorCallback = callback;
|
|
return this;
|
|
},
|
|
|
|
setOpacity: function (opacity) {
|
|
this.options.opacity = opacity;
|
|
this._updateOpacity();
|
|
return this;
|
|
},
|
|
|
|
setZIndex: function(zIndex) {
|
|
this._canvas.style.zIndex = zIndex;
|
|
if (this.options.zoomAnimation) {
|
|
this._backCanvas.style.zIndex = zIndex;
|
|
}
|
|
},
|
|
|
|
bringToFront: function () {
|
|
return this;
|
|
},
|
|
|
|
bringToBack: function () {
|
|
return this;
|
|
},
|
|
|
|
_reset: function () {
|
|
var size = this._map.getSize();
|
|
this._canvas.width = size.x;
|
|
this._canvas.height = size.y;
|
|
|
|
// fix position
|
|
var pos = L.DomUtil.getPosition(this._map.getPanes().mapPane);
|
|
if (pos) {
|
|
L.DomUtil.setPosition(this._canvas, { x: -pos.x, y: -pos.y });
|
|
}
|
|
this.onResize();
|
|
this._render();
|
|
},
|
|
|
|
/*
|
|
_project: function(x) {
|
|
var point = this._map.latLngToLayerPoint(new L.LatLng(x[1], x[0]));
|
|
return [point.x, point.y];
|
|
},
|
|
*/
|
|
|
|
_updateOpacity: function () { },
|
|
|
|
_render: function() {
|
|
if (this.currentAnimationFrame >= 0) {
|
|
this.cancelAnimationFrame.call(window, this.currentAnimationFrame);
|
|
}
|
|
this.currentAnimationFrame = this.requestAnimationFrame.call(window, this.render);
|
|
},
|
|
|
|
// use direct: true if you are inside an animation frame call
|
|
redraw: function(direct) {
|
|
var domPosition = L.DomUtil.getPosition(this._map.getPanes().mapPane);
|
|
if (domPosition) {
|
|
L.DomUtil.setPosition(this._canvas, { x: -domPosition.x, y: -domPosition.y });
|
|
}
|
|
if (direct) {
|
|
this.render();
|
|
} else {
|
|
this._render();
|
|
}
|
|
},
|
|
|
|
onResize: function() {
|
|
},
|
|
|
|
render: function() {
|
|
throw new Error('render function should be implemented');
|
|
}
|
|
|
|
});
|
|
|
|
},{"./leaflet_tileloader_mixin":13}],12:[function(require,module,exports){
|
|
if (typeof L !== 'undefined') {
|
|
require('./torque');
|
|
}
|
|
|
|
},{"./torque":14}],13:[function(require,module,exports){
|
|
L.Mixin.TileLoader = {
|
|
|
|
_initTileLoader: function() {
|
|
this._tiles = {}
|
|
this._tilesLoading = {};
|
|
this._tilesToLoad = 0;
|
|
this._map.on({
|
|
'moveend': this._updateTiles
|
|
}, this);
|
|
this._updateTiles();
|
|
},
|
|
|
|
_removeTileLoader: function() {
|
|
this._map.off({
|
|
'moveend': this._updateTiles
|
|
}, this);
|
|
this._removeTiles();
|
|
},
|
|
|
|
_updateTiles: function () {
|
|
|
|
if (!this._map) { return; }
|
|
|
|
var bounds = this._map.getPixelBounds(),
|
|
zoom = this._map.getZoom(),
|
|
tileSize = this.options.tileSize;
|
|
|
|
if (zoom > this.options.maxZoom || zoom < this.options.minZoom) {
|
|
return;
|
|
}
|
|
|
|
var nwTilePoint = new L.Point(
|
|
Math.floor(bounds.min.x / tileSize),
|
|
Math.floor(bounds.min.y / tileSize)),
|
|
|
|
seTilePoint = new L.Point(
|
|
Math.floor(bounds.max.x / tileSize),
|
|
Math.floor(bounds.max.y / tileSize)),
|
|
|
|
tileBounds = new L.Bounds(nwTilePoint, seTilePoint);
|
|
|
|
this._addTilesFromCenterOut(tileBounds);
|
|
this._removeOtherTiles(tileBounds);
|
|
},
|
|
|
|
_removeTiles: function (bounds) {
|
|
for (var key in this._tiles) {
|
|
this._removeTile(key);
|
|
}
|
|
},
|
|
|
|
_reloadTiles: function() {
|
|
this._removeTiles();
|
|
this._updateTiles();
|
|
},
|
|
|
|
_removeOtherTiles: function (bounds) {
|
|
var kArr, x, y, z, key;
|
|
var zoom = this._map.getZoom();
|
|
|
|
for (key in this._tiles) {
|
|
if (this._tiles.hasOwnProperty(key)) {
|
|
kArr = key.split(':');
|
|
x = parseInt(kArr[0], 10);
|
|
y = parseInt(kArr[1], 10);
|
|
z = parseInt(kArr[2], 10);
|
|
|
|
// remove tile if it's out of bounds
|
|
if (zoom !== z || x < bounds.min.x || x > bounds.max.x || y < bounds.min.y || y > bounds.max.y) {
|
|
this._removeTile(key);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
_removeTile: function (key) {
|
|
this.fire('tileRemoved', this._tiles[key]);
|
|
delete this._tiles[key];
|
|
delete this._tilesLoading[key];
|
|
},
|
|
|
|
_tileKey: function(tilePoint) {
|
|
return tilePoint.x + ':' + tilePoint.y + ':' + tilePoint.zoom;
|
|
},
|
|
|
|
_tileShouldBeLoaded: function (tilePoint) {
|
|
var k = this._tileKey(tilePoint);
|
|
return !(k in this._tiles) && !(k in this._tilesLoading);
|
|
},
|
|
|
|
_tileLoaded: function(tilePoint, tileData) {
|
|
this._tilesToLoad--;
|
|
var k = tilePoint.x + ':' + tilePoint.y + ':' + tilePoint.zoom
|
|
this._tiles[k] = tileData;
|
|
delete this._tilesLoading[k];
|
|
if(this._tilesToLoad === 0) {
|
|
this.fire("tilesLoaded");
|
|
}
|
|
},
|
|
|
|
getTilePos: function (tilePoint) {
|
|
tilePoint = new L.Point(tilePoint.x, tilePoint.y);
|
|
var origin = this._map._getNewTopLeftPoint(this._map.getCenter()),
|
|
tileSize = this.options.tileSize;
|
|
|
|
return tilePoint.multiplyBy(tileSize).subtract(origin);
|
|
},
|
|
|
|
_addTilesFromCenterOut: function (bounds) {
|
|
var queue = [],
|
|
center = bounds.getCenter(),
|
|
zoom = this._map.getZoom();
|
|
|
|
var j, i, point;
|
|
|
|
for (j = bounds.min.y; j <= bounds.max.y; j++) {
|
|
for (i = bounds.min.x; i <= bounds.max.x; i++) {
|
|
point = new L.Point(i, j);
|
|
point.zoom = zoom;
|
|
|
|
if (this._tileShouldBeLoaded(point)) {
|
|
queue.push(point);
|
|
}
|
|
}
|
|
}
|
|
|
|
var tilesToLoad = queue.length;
|
|
|
|
if (tilesToLoad === 0) { return; }
|
|
|
|
// load tiles in order of their distance to center
|
|
queue.sort(function (a, b) {
|
|
return a.distanceTo(center) - b.distanceTo(center);
|
|
});
|
|
|
|
this._tilesToLoad += tilesToLoad;
|
|
|
|
for (i = 0; i < tilesToLoad; i++) {
|
|
var t = queue[i];
|
|
var k = this._tileKey(t);
|
|
this._tilesLoading[k] = t;
|
|
this.fire('tileAdded', t);
|
|
}
|
|
this.fire("tilesLoading");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
},{}],14:[function(require,module,exports){
|
|
(function (global){
|
|
var carto = global.carto || require('carto');
|
|
var torque = require('../');
|
|
|
|
require('./canvas_layer');
|
|
|
|
/**
|
|
* torque layer
|
|
*/
|
|
L.TorqueLayer = L.CanvasLayer.extend({
|
|
|
|
providers: {
|
|
'sql_api': torque.providers.json,
|
|
'url_template': torque.providers.JsonArray,
|
|
'windshaft': torque.providers.windshaft,
|
|
'tileJSON': torque.providers.tileJSON
|
|
},
|
|
|
|
renderers: {
|
|
'point': torque.renderer.Point,
|
|
'pixel': torque.renderer.Rectangle
|
|
},
|
|
|
|
initialize: function(options) {
|
|
var self = this;
|
|
if (!torque.isBrowserSupported()) {
|
|
throw new Error("browser is not supported by torque");
|
|
}
|
|
options.tileLoader = true;
|
|
this.key = 0;
|
|
this.prevRenderedKey = 0;
|
|
if (options.cartocss) {
|
|
torque.extend(options, torque.common.TorqueLayer.optionsFromCartoCSS(options.cartocss));
|
|
}
|
|
|
|
options.resolution = options.resolution || 2;
|
|
options.steps = options.steps || 100;
|
|
options.visible = options.visible === undefined ? true: options.visible;
|
|
this.hidden = !options.visible;
|
|
|
|
this.animator = new torque.Animator(function(time) {
|
|
var k = time | 0;
|
|
if(self.key !== k) {
|
|
self.setKey(k, { direct: true });
|
|
}
|
|
}, torque.extend(torque.clone(options), {
|
|
onPause: function() {
|
|
self.fire('pause');
|
|
},
|
|
onStop: function() {
|
|
self.fire('stop');
|
|
},
|
|
onStart: function() {
|
|
self.fire('play');
|
|
}
|
|
}));
|
|
|
|
this.play = this.animator.start.bind(this.animator);
|
|
this.stop = this.animator.stop.bind(this.animator);
|
|
this.pause = this.animator.pause.bind(this.animator);
|
|
this.toggle = this.animator.toggle.bind(this.animator);
|
|
this.setDuration = this.animator.duration.bind(this.animator);
|
|
this.isRunning = this.animator.isRunning.bind(this.animator);
|
|
|
|
|
|
L.CanvasLayer.prototype.initialize.call(this, options);
|
|
|
|
this.options.renderer = this.options.renderer || 'point';
|
|
this.options.provider = this.options.provider || 'windshaft';
|
|
|
|
if (this.options.tileJSON) this.options.provider = 'tileJSON';
|
|
|
|
this.provider = new this.providers[this.options.provider](options);
|
|
this.renderer = new this.renderers[this.options.renderer](this.getCanvas(), options);
|
|
|
|
options.ready = function() {
|
|
self.fire("change:bounds", {
|
|
bounds: self.provider.getBounds()
|
|
});
|
|
self.animator.steps(self.provider.getSteps());
|
|
self.animator.rescale();
|
|
self.fire('change:steps', {
|
|
steps: self.provider.getSteps()
|
|
});
|
|
self.setKey(self.key);
|
|
};
|
|
|
|
this.renderer.on("allIconsLoaded", this.render.bind(this));
|
|
|
|
|
|
// for each tile shown on the map request the data
|
|
this.on('tileAdded', function(t) {
|
|
var tileData = this.provider.getTileData(t, t.zoom, function(tileData) {
|
|
// don't load tiles that are not being shown
|
|
if (t.zoom !== self._map.getZoom()) return;
|
|
self._tileLoaded(t, tileData);
|
|
self._clearTileCaches();
|
|
if (tileData) {
|
|
self.redraw();
|
|
}
|
|
self.fire('tileLoaded');
|
|
});
|
|
}, this);
|
|
|
|
},
|
|
|
|
_clearTileCaches: function() {
|
|
var t, tile;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
if (tile && tile._tileCache) {
|
|
tile._tileCache = null;
|
|
}
|
|
}
|
|
},
|
|
|
|
_clearCaches: function() {
|
|
this.renderer && this.renderer.clearSpriteCache();
|
|
this._clearTileCaches();
|
|
},
|
|
|
|
onAdd: function (map) {
|
|
map.on({
|
|
'zoomend': this._clearCaches,
|
|
'zoomstart': this._pauseOnZoom,
|
|
}, this);
|
|
|
|
map.on({
|
|
'zoomend': this._resumeOnZoom
|
|
}, this);
|
|
L.CanvasLayer.prototype.onAdd.call(this, map);
|
|
},
|
|
|
|
onRemove: function(map) {
|
|
this.fire('remove');
|
|
this._removeTileLoader();
|
|
map.off({
|
|
'zoomend': this._clearCaches,
|
|
'zoomstart': this._pauseOnZoom,
|
|
}, this);
|
|
map.off({
|
|
'zoomend': this._resumeOnZoom
|
|
}, this);
|
|
L.CanvasLayer.prototype.onRemove.call(this, map);
|
|
},
|
|
|
|
_pauseOnZoom: function() {
|
|
this.wasRunning = this.isRunning();
|
|
if (this.wasRunning) {
|
|
this.pause();
|
|
}
|
|
},
|
|
|
|
_resumeOnZoom: function() {
|
|
if (this.wasRunning) {
|
|
this.play();
|
|
}
|
|
},
|
|
|
|
hide: function() {
|
|
if(this.hidden) return this;
|
|
this.pause();
|
|
this.clear();
|
|
this.hidden = true;
|
|
return this;
|
|
},
|
|
|
|
show: function() {
|
|
if(!this.hidden) return this;
|
|
this.hidden = false;
|
|
this.play();
|
|
if (this.options.steps === 1){
|
|
this.redraw();
|
|
}
|
|
return this;
|
|
},
|
|
|
|
setSQL: function(sql) {
|
|
if (this.provider.options.named_map) throw new Error("SQL queries on named maps are read-only");
|
|
if (!this.provider || !this.provider.setSQL) {
|
|
throw new Error("this provider does not support SQL");
|
|
}
|
|
this.provider.setSQL(sql);
|
|
this._reloadTiles();
|
|
return this;
|
|
},
|
|
|
|
setBlendMode: function(_) {
|
|
this.renderer.setBlendMode(_);
|
|
this.redraw();
|
|
},
|
|
|
|
setSteps: function(steps) {
|
|
this.provider.setSteps(steps);
|
|
this._reloadTiles();
|
|
},
|
|
|
|
setColumn: function(column, isTime) {
|
|
this.provider.setColumn(column, isTime);
|
|
this._reloadTiles();
|
|
},
|
|
|
|
getTimeBounds: function() {
|
|
return this.provider && this.provider.getKeySpan();
|
|
},
|
|
|
|
clear: function() {
|
|
var canvas = this.getCanvas();
|
|
canvas.width = canvas.width;
|
|
},
|
|
|
|
/**
|
|
* render the selectef key
|
|
* don't call this function directly, it's called by
|
|
* requestAnimationFrame. Use redraw to refresh it
|
|
*/
|
|
render: function() {
|
|
if(this.hidden) return;
|
|
var t, tile, pos;
|
|
var canvas = this.getCanvas();
|
|
this.renderer.clearCanvas();
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
if (tile) {
|
|
// clear cache
|
|
if (this.animator.isRunning()) {
|
|
tile._tileCache = null;
|
|
}
|
|
|
|
pos = this.getTilePos(tile.coord);
|
|
ctx.setTransform(1, 0, 0, 1, pos.x, pos.y);
|
|
|
|
if (tile._tileCache) {
|
|
// when the tile has a cached image just render it and avoid to render
|
|
// all the points
|
|
this.renderer._ctx.drawImage(tile._tileCache, 0, 0);
|
|
} else {
|
|
this.renderer.renderTile(tile, this.key);
|
|
}
|
|
}
|
|
}
|
|
this.renderer.applyFilters();
|
|
|
|
// prepare caches if the animation is not running
|
|
// don't cache if the key has just changed, this avoids to cache
|
|
// when the user is dragging, it only cache when the map is still
|
|
if (!this.animator.isRunning() && this.key === this.prevRenderedKey) {
|
|
var tile_size = this.renderer.TILE_SIZE;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
if (tile && !tile._tileCache) {
|
|
var c = tile._tileCache = document.createElement('canvas');
|
|
c.width = c.height = tile_size;
|
|
pos = this.getTilePos(tile.coord);
|
|
// clip bounds, firefox raise an exception when try to get data from outside canvas
|
|
var x = Math.max(0, pos.x)
|
|
var y = Math.max(0, pos.y)
|
|
var w = Math.min(tile_size, this.getCanvas().width - x);
|
|
var h = Math.min(tile_size, this.getCanvas().height - y);
|
|
if (w > 0 && h > 0) {
|
|
c.getContext('2d').drawImage(this.getCanvas(), x, y, w, h, x - pos.x, y - pos.y, w, h);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
this.prevRenderedKey = this.key;
|
|
|
|
},
|
|
|
|
/**
|
|
* set key to be shown. If it's a single value
|
|
* it renders directly, if it's an array it renders
|
|
* accumulated
|
|
*/
|
|
setKey: function(key, options) {
|
|
this.key = key;
|
|
this.animator.step(key);
|
|
this._clearTileCaches();
|
|
this.redraw(options && options.direct);
|
|
this.fire('change:time', { time: this.getTime(), step: this.key });
|
|
},
|
|
|
|
/**
|
|
* helper function, does the same than ``setKey`` but only
|
|
* accepts scalars.
|
|
*/
|
|
setStep: function(time) {
|
|
if(time === undefined || time.length !== undefined) {
|
|
throw new Error("setTime only accept scalars");
|
|
}
|
|
this.setKey(time);
|
|
},
|
|
|
|
/**
|
|
* transform from animation step to Date object
|
|
* that contains the animation time
|
|
*
|
|
* ``step`` should be between 0 and ``steps - 1``
|
|
*/
|
|
stepToTime: function(step) {
|
|
var times = this.provider.getKeySpan();
|
|
var time = times.start + (times.end - times.start)*(step/this.provider.getSteps());
|
|
return new Date(time);
|
|
},
|
|
|
|
timeToStep: function(timestamp) {
|
|
if (typeof timestamp === "Date") timestamp = timestamp.getTime();
|
|
if (!this.provider) return 0;
|
|
var times = this.provider.getKeySpan();
|
|
var step = (this.provider.getSteps() * (timestamp - times.start)) / (times.end - times.start);
|
|
return step;
|
|
},
|
|
|
|
getStep: function() {
|
|
return this.key;
|
|
},
|
|
|
|
/**
|
|
* returns the animation time defined by the data
|
|
* in the defined column. Date object
|
|
*/
|
|
getTime: function() {
|
|
return this.stepToTime(this.key);
|
|
},
|
|
|
|
/**
|
|
* returns an object with the start and end times
|
|
*/
|
|
getTimeSpan: function() {
|
|
return this.provider.getKeySpan();
|
|
},
|
|
|
|
/**
|
|
* set the cartocss for the current renderer
|
|
*/
|
|
setCartoCSS: function(cartocss) {
|
|
if (this.provider.options.named_map) throw new Error("CartoCSS style on named maps is read-only");
|
|
if (!this.renderer) throw new Error('renderer is not valid');
|
|
var shader = new carto.RendererJS().render(cartocss);
|
|
this.renderer.setShader(shader);
|
|
|
|
// provider options
|
|
var options = torque.common.TorqueLayer.optionsFromLayer(shader.findLayer({ name: 'Map' }));
|
|
this.provider.setCartoCSS && this.provider.setCartoCSS(cartocss);
|
|
if(this.provider.setOptions(options)) {
|
|
this._reloadTiles();
|
|
}
|
|
|
|
torque.extend(this.options, options);
|
|
|
|
// animator options
|
|
if (options.animationDuration) {
|
|
this.animator.duration(options.animationDuration);
|
|
}
|
|
this._clearCaches();
|
|
this.redraw();
|
|
return this;
|
|
},
|
|
|
|
/**
|
|
* get active points for a step in active zoom
|
|
* returns a list of bounding boxes [[] , [], []]
|
|
* empty list if there is no active pixels
|
|
*/
|
|
getActivePointsBBox: function(step) {
|
|
var positions = [];
|
|
for(var t in this._tiles) {
|
|
var tile = this._tiles[t];
|
|
positions = positions.concat(this.renderer.getActivePointsBBox(tile, step));
|
|
}
|
|
return positions;
|
|
},
|
|
|
|
/**
|
|
* return an array with the values for all the pixels active for the step
|
|
*/
|
|
getValues: function(step) {
|
|
var values = [];
|
|
step = step === undefined ? this.key: step;
|
|
var t, tile;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
this.renderer.getValues(tile, step, values);
|
|
}
|
|
return values;
|
|
},
|
|
|
|
/**
|
|
* return the value for position relative to map coordinates. null for no value
|
|
*/
|
|
getValueForPos: function(x, y, step) {
|
|
step = step === undefined ? this.key: step;
|
|
var t, tile, pos, value = null, xx, yy;
|
|
for(t in this._tiles) {
|
|
tile = this._tiles[t];
|
|
pos = this.getTilePos(tile.coord);
|
|
xx = x - pos.x;
|
|
yy = y - pos.y;
|
|
if (xx >= 0 && yy >= 0 && xx < this.renderer.TILE_SIZE && yy <= this.renderer.TILE_SIZE) {
|
|
value = this.renderer.getValueFor(tile, step, xx, yy);
|
|
}
|
|
if (value !== null) {
|
|
return value;
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
|
|
getValueForBBox: function(x, y, w, h) {
|
|
var xf = x + w, yf = y + h, _x=x;
|
|
var sum = 0;
|
|
for(_y = y; _y<yf; _y+=this.options.resolution){
|
|
for(_x = x; _x<xf; _x+=this.options.resolution){
|
|
var thisValue = this.getValueForPos(_x,_y);
|
|
if (thisValue){
|
|
var bb = thisValue.bbox;
|
|
var xy = this._map.latLngToContainerPoint([bb[1].lat, bb[1].lon]);
|
|
if(xy.x < xf && xy.y < yf){
|
|
sum += thisValue.value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return sum;
|
|
},
|
|
|
|
invalidate: function() {
|
|
this.provider.reload();
|
|
}
|
|
});
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../":10,"./canvas_layer":11,"carto":undefined}],15:[function(require,module,exports){
|
|
function clamp(a, b) {
|
|
return function(t) {
|
|
return Math.max(Math.min(t, b), a);
|
|
};
|
|
}
|
|
|
|
function invLinear(a, b) {
|
|
var c = clamp(0, 1.0);
|
|
return function(t) {
|
|
return c((t - a)/(b - a));
|
|
};
|
|
}
|
|
|
|
function linear(a, b) {
|
|
var c = clamp(a, b);
|
|
function _linear(t) {
|
|
return c(a*(1.0 - t) + t*b);
|
|
}
|
|
|
|
_linear.invert = function() {
|
|
return invLinear(a, b);
|
|
};
|
|
|
|
return _linear;
|
|
}
|
|
|
|
module.exports = {
|
|
clamp: clamp,
|
|
linear: linear,
|
|
invLinear: invLinear
|
|
};
|
|
|
|
},{}],16:[function(require,module,exports){
|
|
var Point = function(x, y) {
|
|
this.x = x || 0;
|
|
this.y = y || 0;
|
|
};
|
|
|
|
function clamp(value, optMin, optMax) {
|
|
if (optMin !== null) value = Math.max(value, optMin);
|
|
if (optMax !== null) value = Math.min(value, optMax);
|
|
return value;
|
|
}
|
|
|
|
function degreesToRadians(deg) {
|
|
return deg * (Math.PI / 180);
|
|
}
|
|
|
|
function radiansToDegrees(rad) {
|
|
return rad / (Math.PI / 180);
|
|
}
|
|
|
|
|
|
var MercatorProjection = function() {
|
|
// this._tileSize = L.Browser.retina ? 512 : 256;
|
|
this._tileSize = 256;
|
|
this._pixelOrigin = new Point(this._tileSize / 2, this._tileSize / 2);
|
|
this._pixelsPerLonDegree = this._tileSize / 360;
|
|
this._pixelsPerLonRadian = this._tileSize / (2 * Math.PI);
|
|
};
|
|
|
|
MercatorProjection.prototype._fromLatLonToPoint = function(lat, lon) {
|
|
var point = new Point(0, 0);
|
|
var origin = this._pixelOrigin;
|
|
|
|
point.x = origin.x + lon * this._pixelsPerLonDegree;
|
|
|
|
// NOTE(appleton): Truncating to 0.9999 effectively limits latitude to
|
|
// 89.189. This is about a third of a tile past the edge of the world
|
|
// tile.
|
|
var siny = clamp(Math.sin(degreesToRadians(lat)), -0.9999, 0.9999);
|
|
point.y = origin.y + 0.5 * Math.log((1 + siny) / (1 - siny)) * -this._pixelsPerLonRadian;
|
|
return point;
|
|
};
|
|
|
|
MercatorProjection.prototype._fromPointToLatLon = function(point) {
|
|
var me = this;
|
|
var origin = me._pixelOrigin;
|
|
var lon = (point.x - origin.x) / me._pixelsPerLonDegree;
|
|
var latRadians = (point.y - origin.y) / -me._pixelsPerLonRadian;
|
|
var lat = radiansToDegrees(2 * Math.atan(Math.exp(latRadians)) - Math.PI / 2);
|
|
return { lat:lat, lon:lon };
|
|
};
|
|
|
|
MercatorProjection.prototype._tilePixelPos = function(tileX, tileY) {
|
|
return {
|
|
x: tileX*this._tileSize,
|
|
y: tileY*this._tileSize
|
|
};
|
|
};
|
|
|
|
MercatorProjection.prototype.tilePixelBBox = function(x, y, zoom, px, py, res) {
|
|
res = res || 1.0;
|
|
var numTiles = 1 <<zoom;
|
|
var inc = res/numTiles;
|
|
px = (x*this._tileSize + px)/numTiles;
|
|
py = (y*this._tileSize + py)/numTiles;
|
|
return [
|
|
this._fromPointToLatLon(new Point(px, py + inc)),
|
|
this._fromPointToLatLon(new Point(px + inc, py))
|
|
];
|
|
};
|
|
|
|
MercatorProjection.prototype.tileBBox = function(x, y, zoom, bufferSize) {
|
|
var numTiles = 1 <<zoom;
|
|
bufferSize = bufferSize || 0;
|
|
var inc = (this._tileSize + bufferSize*2)/numTiles;
|
|
var px = (x*this._tileSize - bufferSize )/numTiles;
|
|
var py = (y*this._tileSize - bufferSize )/numTiles;
|
|
return [
|
|
this._fromPointToLatLon(new Point(px, py + inc)),
|
|
this._fromPointToLatLon(new Point(px + inc, py))
|
|
];
|
|
};
|
|
|
|
MercatorProjection.prototype.latLonToTilePoint = function(lat, lon, tileX, tileY, zoom) {
|
|
var numTiles = 1 <<zoom;
|
|
var worldCoordinate = this._fromLatLonToPoint(lat, lon);
|
|
var pixelCoordinate = new Point(worldCoordinate.x*numTiles, worldCoordinate.y*numTiles);
|
|
var tilePixelPos = this._tilePixelPos(tileX, tileY);
|
|
return new Point(Math.round(pixelCoordinate.x-tilePixelPos.x), Math.round(pixelCoordinate.y-tilePixelPos.y));
|
|
};
|
|
|
|
module.exports = MercatorProjection;
|
|
|
|
},{}],17:[function(require,module,exports){
|
|
/*
|
|
# metrics profiler
|
|
|
|
## timing
|
|
|
|
```
|
|
var timer = Profiler.metric('resource:load')
|
|
time.start();
|
|
...
|
|
time.end();
|
|
```
|
|
|
|
## counters
|
|
|
|
```
|
|
var counter = Profiler.metric('requests')
|
|
counter.inc(); // 1
|
|
counter.inc(10); // 11
|
|
counter.dec() // 10
|
|
counter.dec(10) // 0
|
|
```
|
|
|
|
## Calls per second
|
|
```
|
|
var fps = Profiler.metric('fps')
|
|
function render() {
|
|
fps.mark();
|
|
}
|
|
```
|
|
*/
|
|
var MAX_HISTORY = 1024;
|
|
function Profiler() {}
|
|
Profiler.metrics = {};
|
|
|
|
Profiler.get = function(name) {
|
|
return Profiler.metrics[name] || {
|
|
max: 0,
|
|
min: Number.MAX_VALUE,
|
|
avg: 0,
|
|
total: 0,
|
|
count: 0,
|
|
history: typeof(Float32Array) !== 'undefined' ? new Float32Array(MAX_HISTORY) : []
|
|
};
|
|
};
|
|
|
|
Profiler.new_value = function (name, value) {
|
|
var t = Profiler.metrics[name] = Profiler.get(name);
|
|
|
|
t.max = Math.max(t.max, value);
|
|
t.min = Math.min(t.min, value);
|
|
t.total += value;
|
|
++t.count;
|
|
t.avg = t.total / t.count;
|
|
t.history[t.count%MAX_HISTORY] = value;
|
|
};
|
|
|
|
Profiler.print_stats = function () {
|
|
for (k in Profiler.metrics) {
|
|
var t = Profiler.metrics[k];
|
|
console.log(" === " + k + " === ");
|
|
console.log(" max: " + t.max);
|
|
console.log(" min: " + t.min);
|
|
console.log(" avg: " + t.avg);
|
|
console.log(" count: " + t.count);
|
|
console.log(" total: " + t.total);
|
|
}
|
|
};
|
|
|
|
function Metric(name) {
|
|
this.t0 = null;
|
|
this.name = name;
|
|
this.count = 0;
|
|
}
|
|
|
|
Metric.prototype = {
|
|
|
|
//
|
|
// start a time measurement
|
|
//
|
|
start: function() {
|
|
this.t0 = +new Date();
|
|
return this;
|
|
},
|
|
|
|
// elapsed time since start was called
|
|
_elapsed: function() {
|
|
return +new Date() - this.t0;
|
|
},
|
|
|
|
//
|
|
// finish a time measurement and register it
|
|
// ``start`` should be called first, if not this
|
|
// function does not take effect
|
|
//
|
|
end: function() {
|
|
if (this.t0 !== null) {
|
|
Profiler.new_value(this.name, this._elapsed());
|
|
this.t0 = null;
|
|
}
|
|
},
|
|
|
|
//
|
|
// increments the value
|
|
// qty: how many, default = 1
|
|
//
|
|
inc: function(qty) {
|
|
qty = qty === undefined ? 1: qty;
|
|
Profiler.new_value(this.name, Profiler.get(this.name).count + (qty ? qty: 0));
|
|
},
|
|
|
|
//
|
|
// decrements the value
|
|
// qty: how many, default = 1
|
|
//
|
|
dec: function(qty) {
|
|
qty = qty === undefined ? 1: qty;
|
|
this.inc(-qty);
|
|
},
|
|
|
|
//
|
|
// measures how many times per second this function is called
|
|
//
|
|
mark: function() {
|
|
++this.count;
|
|
if(this.t0 === null) {
|
|
this.start();
|
|
return;
|
|
}
|
|
var elapsed = this._elapsed();
|
|
if(elapsed > 1) {
|
|
Profiler.new_value(this.name, this.count);
|
|
this.count = 0;
|
|
this.start();
|
|
}
|
|
}
|
|
};
|
|
|
|
Profiler.metric = function(name) {
|
|
return new Metric(name);
|
|
};
|
|
|
|
module.exports = Profiler;
|
|
|
|
},{}],18:[function(require,module,exports){
|
|
module.exports = {
|
|
json: require('./json'),
|
|
JsonArray: require('./jsonarray'),
|
|
windshaft: require('./windshaft'),
|
|
tileJSON: require('./tilejson')
|
|
};
|
|
|
|
},{"./json":19,"./jsonarray":20,"./tilejson":21,"./windshaft":22}],19:[function(require,module,exports){
|
|
var torque = require('../');
|
|
var Profiler = require('../profiler');
|
|
|
|
var Uint8Array = torque.types.Uint8Array;
|
|
var Int32Array = torque.types.Int32Array;
|
|
var Uint32Array = torque.types.Uint32Array;
|
|
|
|
// format('hello, {0}', 'rambo') -> "hello, rambo"
|
|
function format(str) {
|
|
for(var i = 1; i < arguments.length; ++i) {
|
|
var attrs = arguments[i];
|
|
for(var attr in attrs) {
|
|
str = str.replace(RegExp('\\{' + attr + '\\}', 'g'), attrs[attr]);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
var json = function (options) {
|
|
this._ready = false;
|
|
this._tileQueue = [];
|
|
this.options = options;
|
|
|
|
this.options.is_time = this.options.is_time === undefined ? true: this.options.is_time;
|
|
this.options.tiler_protocol = options.tiler_protocol || 'http';
|
|
this.options.tiler_domain = options.tiler_domain || 'cartodb.com';
|
|
this.options.tiler_port = options.tiler_port || 80;
|
|
|
|
if (this.options.data_aggregation) {
|
|
this.options.cumulative = this.options.data_aggregation === 'cumulative';
|
|
}
|
|
|
|
// check options
|
|
if (options.resolution === undefined ) throw new Error("resolution should be provided");
|
|
if (options.steps === undefined ) throw new Error("steps should be provided");
|
|
if(options.start === undefined) {
|
|
this._fetchKeySpan();
|
|
} else {
|
|
this._setReady(true);
|
|
}
|
|
};
|
|
|
|
json.prototype = {
|
|
|
|
/**
|
|
* return the torque tile encoded in an efficient javascript
|
|
* structure:
|
|
* {
|
|
* x:Uint8Array x coordinates in tile reference system, normally from 0-255
|
|
* y:Uint8Array y coordinates in tile reference system
|
|
* Index: Array index to the properties
|
|
* }
|
|
*/
|
|
proccessTile: function(rows, coord, zoom) {
|
|
var r;
|
|
var x = new Uint8Array(rows.length);
|
|
var y = new Uint8Array(rows.length);
|
|
|
|
var prof_mem = Profiler.metric('ProviderJSON:mem');
|
|
var prof_point_count = Profiler.metric('ProviderJSON:point_count');
|
|
var prof_process_time = Profiler.metric('ProviderJSON:process_time').start()
|
|
|
|
// count number of dates
|
|
var dates = 0;
|
|
var maxDateSlots = -1;
|
|
for (r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
dates += row.dates__uint16.length;
|
|
for(var d = 0; d < row.dates__uint16.length; ++d) {
|
|
maxDateSlots = Math.max(maxDateSlots, row.dates__uint16[d]);
|
|
}
|
|
}
|
|
|
|
if(this.options.cumulative) {
|
|
dates = (1 + maxDateSlots) * rows.length;
|
|
}
|
|
|
|
var type = this.options.cumulative ? Uint32Array: Uint8Array;
|
|
|
|
// reserve memory for all the dates
|
|
var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
|
|
var timeCount = new Int32Array(maxDateSlots + 1);
|
|
var renderData = new (this.options.valueDataType || type)(dates);
|
|
var renderDataPos = new Uint32Array(dates);
|
|
|
|
prof_mem.inc(
|
|
4 * maxDateSlots + // timeIndex
|
|
4 * maxDateSlots + // timeCount
|
|
dates + //renderData
|
|
dates * 4
|
|
); //renderDataPos
|
|
|
|
prof_point_count.inc(rows.length);
|
|
|
|
var rowsPerSlot = {};
|
|
|
|
// precache pixel positions
|
|
for (var r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
x[r] = row.x__uint8 * this.options.resolution;
|
|
// fix value when it's in the tile EDGE
|
|
// TODO: this should be fixed in SQL query
|
|
if (row.y__uint8 === -1) {
|
|
y[r] = 0;
|
|
} else {
|
|
y[r] = row.y__uint8 * this.options.resolution;
|
|
}
|
|
|
|
var dates = row.dates__uint16;
|
|
var vals = row.vals__uint8;
|
|
if (!this.options.cumulative) {
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
|
|
if(this.options.cumulative) {
|
|
vals[j] += prev_val;
|
|
}
|
|
prev_val = vals[j];
|
|
rr.push([r, vals[j]]);
|
|
}
|
|
} else {
|
|
var valByDate = {}
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
valByDate[dates[j]] = vals[j];
|
|
}
|
|
var accum = 0;
|
|
|
|
// extend the latest to the end
|
|
for (var j = dates[0]; j <= maxDateSlots; ++j) {
|
|
var rr = rowsPerSlot[j] || (rowsPerSlot[j] = []);
|
|
var v = valByDate[j];
|
|
if (v) {
|
|
accum += v;
|
|
}
|
|
rr.push([r, accum]);
|
|
}
|
|
|
|
/*var lastDateSlot = dates[dates.length - 1];
|
|
for (var j = lastDateSlot + 1; j <= maxDateSlots; ++j) {
|
|
var rr = rowsPerSlot[j] || (rowsPerSlot[j] = []);
|
|
rr.push([r, prev_val]);
|
|
}
|
|
*/
|
|
}
|
|
|
|
}
|
|
|
|
// for each timeslot search active buckets
|
|
var renderDataIndex = 0;
|
|
var timeSlotIndex = 0;
|
|
var i = 0;
|
|
for(var i = 0; i <= maxDateSlots; ++i) {
|
|
var c = 0;
|
|
var slotRows = rowsPerSlot[i]
|
|
if(slotRows) {
|
|
for (var r = 0; r < slotRows.length; ++r) {
|
|
var rr = slotRows[r];
|
|
++c;
|
|
renderDataPos[renderDataIndex] = rr[0]
|
|
renderData[renderDataIndex] = rr[1];
|
|
++renderDataIndex;
|
|
}
|
|
}
|
|
timeIndex[i] = timeSlotIndex;
|
|
timeCount[i] = c;
|
|
timeSlotIndex += c;
|
|
}
|
|
|
|
prof_process_time.end();
|
|
|
|
return {
|
|
x: x,
|
|
y: y,
|
|
z: zoom,
|
|
coord: {
|
|
x: coord.x,
|
|
y: coord.y,
|
|
z: zoom
|
|
},
|
|
timeCount: timeCount,
|
|
timeIndex: timeIndex,
|
|
renderDataPos: renderDataPos,
|
|
renderData: renderData,
|
|
maxDate: maxDateSlots
|
|
};
|
|
},
|
|
|
|
_host: function() {
|
|
var opts = this.options;
|
|
var port = opts.sql_api_port;
|
|
var domain = ((opts.user_name || opts.user) + '.' + (opts.sql_api_domain || 'cartodb.com')) + (port ? ':' + port: '');
|
|
var protocol = opts.sql_api_protocol || 'http';
|
|
return this.options.url || protocol + '://' + domain + '/api/v2/sql';
|
|
},
|
|
|
|
url: function(subhost) {
|
|
var opts = this.options;
|
|
var protocol = opts.sql_api_protocol || 'http';
|
|
if (!this.options.cdn_url) {
|
|
return this._host();
|
|
}
|
|
var h = protocol+ "://";
|
|
if (subhost) {
|
|
h += subhost + ".";
|
|
}
|
|
var cdn_host = opts.cdn_url;
|
|
if(!cdn_host.http && !cdn_host.https) {
|
|
throw new Error("cdn_host should contain http and/or https entries");
|
|
}
|
|
h += cdn_host[protocol] + "/" + (opts.user_name || opts.user) + '/api/v2/sql';
|
|
return h;
|
|
},
|
|
|
|
_hash: function(str) {
|
|
var hash = 0;
|
|
if (!str || str.length == 0) return hash;
|
|
for (var i = 0, l = str.length; i < l; ++i) {
|
|
hash = (( (hash << 5 ) - hash ) + str.charCodeAt(i)) | 0;
|
|
}
|
|
return hash;
|
|
},
|
|
|
|
_extraParams: function() {
|
|
if (this.options.extra_params) {
|
|
var p = [];
|
|
for(var k in this.options.extra_params) {
|
|
var v = this.options.extra_params[k];
|
|
if (v) {
|
|
p.push(k + "=" + encodeURIComponent(v));
|
|
}
|
|
}
|
|
return p.join('&');
|
|
}
|
|
return null;
|
|
},
|
|
|
|
isHttps: function() {
|
|
return this.options.sql_api_protocol && this.options.sql_api_protocol === 'https';
|
|
},
|
|
|
|
// execute actual query
|
|
sql: function(sql, callback, options) {
|
|
options = options || {};
|
|
var subdomains = this.options.subdomains || '0123';
|
|
if(this.isHttps()) {
|
|
subdomains = [null]; // no subdomain
|
|
}
|
|
|
|
|
|
var url;
|
|
if (options.no_cdn) {
|
|
url = this._host();
|
|
} else {
|
|
url = this.url(subdomains[Math.abs(this._hash(sql))%subdomains.length]);
|
|
}
|
|
var extra = this._extraParams();
|
|
torque.net.get( url + "?q=" + encodeURIComponent(sql) + (extra ? "&" + extra: ''), function (data) {
|
|
if(options.parseJSON) {
|
|
data = JSON.parse(data && data.responseText);
|
|
}
|
|
callback && callback(data);
|
|
});
|
|
},
|
|
|
|
getTileData: function(coord, zoom, callback) {
|
|
if(!this._ready) {
|
|
this._tileQueue.push([coord, zoom, callback]);
|
|
} else {
|
|
this._getTileData(coord, zoom, callback);
|
|
}
|
|
},
|
|
|
|
_setReady: function(ready) {
|
|
this._ready = true;
|
|
this._processQueue();
|
|
this.options.ready && this.options.ready();
|
|
},
|
|
|
|
_processQueue: function() {
|
|
var item;
|
|
while (item = this._tileQueue.pop()) {
|
|
this._getTileData.apply(this, item);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* `coord` object like {x : tilex, y: tiley }
|
|
* `zoom` quadtree zoom level
|
|
*/
|
|
_getTileData: function(coord, zoom, callback) {
|
|
var prof_fetch_time = Profiler.metric('ProviderJSON:tile_fetch_time').start()
|
|
this.table = this.options.table;
|
|
var numTiles = 1 << zoom;
|
|
|
|
var column_conv = this.options.column;
|
|
|
|
if(this.options.is_time) {
|
|
column_conv = format("date_part('epoch', {column})", this.options);
|
|
}
|
|
|
|
var sql = "" +
|
|
"WITH " +
|
|
"par AS (" +
|
|
" SELECT CDB_XYZ_Resolution({zoom})*{resolution} as res" +
|
|
", 256/{resolution} as tile_size" +
|
|
", CDB_XYZ_Extent({x}, {y}, {zoom}) as ext " +
|
|
")," +
|
|
"cte AS ( "+
|
|
" SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g" +
|
|
", {countby} c" +
|
|
", floor(({column_conv} - {start})/{step}) d" +
|
|
" FROM ({_sql}) i, par p " +
|
|
" WHERE i.the_geom_webmercator && p.ext " +
|
|
" GROUP BY g, d" +
|
|
") " +
|
|
"" +
|
|
"SELECT (st_x(g)-st_xmin(p.ext))/p.res x__uint8, " +
|
|
" (st_y(g)-st_ymin(p.ext))/p.res y__uint8," +
|
|
" array_agg(c) vals__uint8," +
|
|
" array_agg(d) dates__uint16" +
|
|
// the tile_size where are needed because the overlaps query in cte subquery includes the points
|
|
// in the left and bottom borders of the tile
|
|
" FROM cte, par p where (st_y(g)-st_ymin(p.ext))/p.res < tile_size and (st_x(g)-st_xmin(p.ext))/p.res < tile_size GROUP BY x__uint8, y__uint8";
|
|
|
|
|
|
var query = format(sql, this.options, {
|
|
zoom: zoom,
|
|
x: coord.x,
|
|
y: coord.y,
|
|
column_conv: column_conv,
|
|
_sql: this.getSQL()
|
|
});
|
|
|
|
var self = this;
|
|
this.sql(query, function (data) {
|
|
if (data) {
|
|
var rows = JSON.parse(data.responseText).rows;
|
|
callback(self.proccessTile(rows, coord, zoom));
|
|
} else {
|
|
callback(null);
|
|
}
|
|
prof_fetch_time.end();
|
|
});
|
|
},
|
|
|
|
getKeySpan: function() {
|
|
return {
|
|
start: this.options.start * 1000,
|
|
end: this.options.end * 1000,
|
|
step: this.options.step,
|
|
steps: this.options.steps,
|
|
columnType: this.options.is_time ? 'date': 'number'
|
|
};
|
|
},
|
|
|
|
setColumn: function(column, isTime) {
|
|
this.options.column = column;
|
|
this.options.is_time = isTime === undefined ? true: false;
|
|
this.reload();
|
|
},
|
|
|
|
setResolution: function(res) {
|
|
this.options.resolution = res;
|
|
},
|
|
|
|
// return true if tiles has been changed
|
|
setOptions: function(opt) {
|
|
var refresh = false;
|
|
|
|
if(opt.resolution !== undefined && opt.resolution !== this.options.resolution) {
|
|
this.options.resolution = opt.resolution;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.steps !== undefined && opt.steps !== this.options.steps) {
|
|
this.setSteps(opt.steps, { silent: true });
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.column !== undefined && opt.column !== this.options.column) {
|
|
this.options.column = opt.column;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.countby !== undefined && opt.countby !== this.options.countby) {
|
|
this.options.countby = opt.countby;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.data_aggregation !== undefined) {
|
|
var c = opt.data_aggregation === 'cumulative';
|
|
if (this.options.cumulative !== c) {
|
|
this.options.cumulative = c;
|
|
refresh = true;
|
|
}
|
|
}
|
|
|
|
if (refresh) this.reload();
|
|
return refresh;
|
|
|
|
},
|
|
|
|
reload: function() {
|
|
this._ready = false;
|
|
this._fetchKeySpan();
|
|
},
|
|
|
|
setSQL: function(sql) {
|
|
if (this.options.sql != sql) {
|
|
this.options.sql = sql;
|
|
this.reload();
|
|
}
|
|
},
|
|
|
|
getSteps: function() {
|
|
return Math.min(this.options.steps, this.options.data_steps);
|
|
},
|
|
|
|
setSteps: function(steps, opt) {
|
|
opt = opt || {};
|
|
if (this.options.steps !== steps) {
|
|
this.options.steps = steps;
|
|
this.options.step = (this.options.end - this.options.start)/this.getSteps();
|
|
this.options.step = this.options.step || 1;
|
|
if (!opt.silent) this.reload();
|
|
}
|
|
},
|
|
|
|
getBounds: function() {
|
|
return this.options.bounds;
|
|
},
|
|
|
|
getSQL: function() {
|
|
return this.options.sql || "select * from " + this.options.table;
|
|
},
|
|
|
|
_tilerHost: function() {
|
|
var opts = this.options;
|
|
var user = (opts.user_name || opts.user);
|
|
return opts.tiler_protocol +
|
|
"://" + (user ? user + "." : "") +
|
|
opts.tiler_domain +
|
|
((opts.tiler_port != "") ? (":" + opts.tiler_port) : "");
|
|
},
|
|
|
|
_fetchUpdateAt: function(callback) {
|
|
var self = this;
|
|
var layergroup = {
|
|
"version": "1.0.1",
|
|
"stat_tag": this.options.stat_tag || 'torque',
|
|
"layers": [{
|
|
"type": "cartodb",
|
|
"options": {
|
|
"cartocss_version": "2.1.1",
|
|
"cartocss": "#layer {}",
|
|
"sql": this.getSQL()
|
|
}
|
|
}]
|
|
};
|
|
var url = this._tilerHost() + "/tiles/layergroup";
|
|
var extra = this._extraParams();
|
|
|
|
// tiler needs map_key instead of api_key
|
|
// so replace it
|
|
if (extra) {
|
|
extra = extra.replace('api_key=', 'map_key=');
|
|
}
|
|
|
|
url = url +
|
|
"?config=" + encodeURIComponent(JSON.stringify(layergroup)) +
|
|
"&callback=?" + (extra ? "&" + extra: '');
|
|
|
|
torque.net.jsonp(url, function (data) {
|
|
var query = format("select * from ({sql}) __torque_wrap_sql limit 0", { sql: self.getSQL() });
|
|
self.sql(query, function (queryData) {
|
|
if (data && queryData) {
|
|
callback({
|
|
updated_at: data.last_updated,
|
|
fields: queryData.fields
|
|
});
|
|
}
|
|
}, { parseJSON: true });
|
|
});
|
|
},
|
|
|
|
//
|
|
// the data range could be set by the user though ``start``
|
|
// option. It can be fecthed from the table when the start
|
|
// is not specified.
|
|
//
|
|
_fetchKeySpan: function() {
|
|
var self = this;
|
|
var max_col, min_col, max_tmpl, min_tmpl;
|
|
|
|
this._fetchUpdateAt(function(data) {
|
|
if (!data) return;
|
|
self.options.extra_params = self.options.extra_params || {};
|
|
self.options.extra_params.last_updated = data.updated_at || 0;
|
|
self.options.extra_params.cache_policy = 'persist';
|
|
self.options.is_time = data.fields[self.options.column].type === 'date';
|
|
|
|
var column_conv = self.options.column;
|
|
if (self.options.is_time){
|
|
max_tmpl = "date_part('epoch', max({column}))";
|
|
min_tmpl = "date_part('epoch', min({column}))";
|
|
column_conv = format("date_part('epoch', {column})", self.options);
|
|
} else {
|
|
max_tmpl = "max({column})";
|
|
min_tmpl = "min({column})";
|
|
}
|
|
|
|
max_col = format(max_tmpl, { column: self.options.column });
|
|
min_col = format(min_tmpl, { column: self.options.column });
|
|
|
|
/*var sql_stats = "" +
|
|
"WITH summary_groups as ( " +
|
|
"WITH summary as ( " +
|
|
"select (row_number() over (order by __time_col asc nulls last)+1)/2 as rownum, __time_col " +
|
|
"from (select *, {column} as __time_col from ({sql}) __s) __torque_wrap_sql " +
|
|
"order by __time_col asc " +
|
|
") " +
|
|
"SELECT " +
|
|
"max(__time_col) OVER(PARTITION BY rownum) - " +
|
|
"min(__time_col) OVER(PARTITION BY rownum) diff " +
|
|
"FROM summary " +
|
|
"), subq as ( " +
|
|
" SELECT " +
|
|
"st_xmax(st_envelope(st_collect(the_geom))) xmax, " +
|
|
"st_ymax(st_envelope(st_collect(the_geom))) ymax, " +
|
|
"st_xmin(st_envelope(st_collect(the_geom))) xmin, " +
|
|
"st_ymin(st_envelope(st_collect(the_geom))) ymin, " +
|
|
"{max_col} max, " +
|
|
"{min_col} min FROM ({sql}) __torque_wrap_sql " +
|
|
")" +
|
|
"SELECT " +
|
|
"xmax, xmin, ymax, ymin, a.max as max_date, a.min as min_date, " +
|
|
"avg(diff) as diffavg," +
|
|
"(a.max - a.min)/avg(diff) as num_steps " +
|
|
"FROM summary_groups, subq a " +
|
|
"WHERE diff > 0 group by xmax, xmin, ymax, ymin, max_date, min_date";
|
|
*/
|
|
var sql_stats = " SELECT " +
|
|
"st_xmax(st_envelope(st_collect(the_geom))) xmax, " +
|
|
"st_ymax(st_envelope(st_collect(the_geom))) ymax, " +
|
|
"st_xmin(st_envelope(st_collect(the_geom))) xmin, " +
|
|
"st_ymin(st_envelope(st_collect(the_geom))) ymin, " +
|
|
"count(*) as num_steps, " +
|
|
"{max_col} max_date, " +
|
|
"{min_col} min_date FROM ({sql}) __torque_wrap_sql ";
|
|
|
|
var sql = format(sql_stats, {
|
|
max_col: max_col,
|
|
min_col: min_col,
|
|
column: column_conv,
|
|
sql: self.getSQL()
|
|
});
|
|
|
|
self.sql(sql, function(data) {
|
|
//TODO: manage bounds
|
|
data = data.rows[0];
|
|
self.options.start = data.min_date;
|
|
self.options.end = data.max_date;
|
|
self.options.step = (data.max_date - data.min_date)/Math.min(self.options.steps, data.num_steps>>0);
|
|
self.options.data_steps = data.num_steps >> 0;
|
|
// step can't be 0
|
|
self.options.step = self.options.step || 1;
|
|
self.options.bounds = [
|
|
[data.ymin, data.xmin],
|
|
[data.ymax, data.xmax]
|
|
];
|
|
self._setReady(true);
|
|
}, { parseJSON: true, no_cdn: true });
|
|
}, { parseJSON: true, no_cdn: true})
|
|
}
|
|
|
|
};
|
|
|
|
module.exports = json;
|
|
|
|
},{"../":10,"../profiler":17}],20:[function(require,module,exports){
|
|
var torque = require('../');
|
|
var Profiler = require('../profiler');
|
|
|
|
var Uint8Array = torque.types.Uint8Array;
|
|
var Int32Array = torque.types.Int32Array;
|
|
var Uint32Array = torque.types.Uint32Array;
|
|
|
|
// format('hello, {0}', 'rambo') -> "hello, rambo"
|
|
function format(str, attrs) {
|
|
for(var i = 1; i < arguments.length; ++i) {
|
|
var attrs = arguments[i];
|
|
for(var attr in attrs) {
|
|
str = str.replace(RegExp('\\{' + attr + '\\}', 'g'), attrs[attr]);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
var json = function (options) {
|
|
// check options
|
|
this.options = options;
|
|
};
|
|
|
|
|
|
json.prototype = {
|
|
|
|
//
|
|
// return the data aggregated by key:
|
|
// {
|
|
// key0: 12,
|
|
// key1: 32
|
|
// key2: 25
|
|
// }
|
|
//
|
|
aggregateByKey: function(rows) {
|
|
function getKeys(row) {
|
|
var HEADER_SIZE = 3;
|
|
var valuesCount = row.data[2];
|
|
var keys = {};
|
|
for (var s = 0; s < valuesCount; ++s) {
|
|
keys[row.data[HEADER_SIZE + s]] = row.data[HEADER_SIZE + valuesCount + s];
|
|
}
|
|
return keys;
|
|
}
|
|
var keys = {};
|
|
for (r = 0; r < rows.length; ++r) {
|
|
var rowKeys = getKeys(rows[r]);
|
|
for(var k in rowKeys) {
|
|
keys[k] = keys[k] || 0;
|
|
keys[k] += rowKeys[k];
|
|
}
|
|
}
|
|
return keys;
|
|
},
|
|
|
|
|
|
|
|
|
|
/**
|
|
*
|
|
*/
|
|
proccessTile: function(rows, coord, zoom) {
|
|
var r;
|
|
var x = new Uint8Array(rows.length);
|
|
var y = new Uint8Array(rows.length);
|
|
var self = this;
|
|
|
|
// decode into a javascript strcuture the array
|
|
function decode_row(row) {
|
|
var HEADER_SIZE = 3;
|
|
var o = {
|
|
x: row.data[0] * self.options.resolution,
|
|
y: row.data[1] * self.options.resolution,
|
|
valuesCount: row.data[2],
|
|
times: [],
|
|
values: []
|
|
};
|
|
for (var s = 0; s < o.valuesCount; ++s) {
|
|
o.times.push(row.data[HEADER_SIZE + s]);
|
|
o.values.push(row.data[HEADER_SIZE + o.valuesCount + s]);
|
|
}
|
|
if(self.options.cumulative) {
|
|
for (var s = 1; s < o.valuesCount; ++s) {
|
|
o.values[s] += o.values[s - 1];
|
|
}
|
|
}
|
|
return o
|
|
}
|
|
|
|
// decode all the rows
|
|
for (r = 0; r < rows.length; ++r) {
|
|
rows[r] = decode_row(rows[r]);
|
|
}
|
|
|
|
// count number of dates
|
|
var dates = 0;
|
|
var maxDateSlots = 0;
|
|
for (r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
dates += row.times.length;
|
|
for(var d = 0; d < row.times.length; ++d) {
|
|
maxDateSlots = Math.max(maxDateSlots, row.times[d]);
|
|
}
|
|
}
|
|
|
|
// reserve memory for all the dates
|
|
var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
|
|
var timeCount = new Int32Array(maxDateSlots + 1);
|
|
var renderData = new (this.options.valueDataType || Uint8Array)(dates);
|
|
var renderDataPos = new Uint32Array(dates);
|
|
|
|
var rowsPerSlot = {};
|
|
|
|
// precache pixel positions
|
|
for (var r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
x[r] = row.x;
|
|
y[r] = row.y;
|
|
|
|
var dates = row.times;
|
|
var vals = row.values;
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
|
|
rr.push([r, vals[j]]);
|
|
}
|
|
}
|
|
|
|
// for each timeslot search active buckets
|
|
var renderDataIndex = 0;
|
|
var timeSlotIndex = 0;
|
|
var i = 0;
|
|
for(var i = 0; i <= maxDateSlots; ++i) {
|
|
var c = 0;
|
|
var slotRows = rowsPerSlot[i]
|
|
if(slotRows) {
|
|
for (var r = 0; r < slotRows.length; ++r) {
|
|
var rr = slotRows[r];
|
|
++c;
|
|
renderDataPos[renderDataIndex] = rr[0]
|
|
renderData[renderDataIndex] = rr[1];
|
|
++renderDataIndex;
|
|
}
|
|
}
|
|
timeIndex[i] = timeSlotIndex;
|
|
timeCount[i] = c;
|
|
timeSlotIndex += c;
|
|
}
|
|
|
|
return {
|
|
x: x,
|
|
y: y,
|
|
coord: {
|
|
x: coord.x,
|
|
y: coord.y,
|
|
z: zoom
|
|
},
|
|
timeCount: timeCount,
|
|
timeIndex: timeIndex,
|
|
renderDataPos: renderDataPos,
|
|
renderData: renderData
|
|
};
|
|
},
|
|
|
|
url: function() {
|
|
return this.options.url;
|
|
},
|
|
|
|
|
|
tileUrl: function(coord, zoom) {
|
|
var template = this.url();
|
|
var s = (this.options.subdomains || 'abcd')[(coord.x + coord.y + zoom) % 4];
|
|
return template
|
|
.replace('{x}', coord.x)
|
|
.replace('{y}', coord.y)
|
|
.replace('{z}', zoom)
|
|
.replace('{s}', s);
|
|
},
|
|
|
|
getTile: function(coord, zoom, callback) {
|
|
var template = this.tileUrl(coord, zoom);
|
|
|
|
var self = this;
|
|
var fetchTime = Profiler.metric('jsonarray:fetch time');
|
|
fetchTime.start();
|
|
torque.net.get(template, function (data) {
|
|
fetchTime.end();
|
|
if(data) {
|
|
data = JSON.parse(data.responseText);
|
|
}
|
|
callback(data);
|
|
});
|
|
},
|
|
|
|
/**
|
|
* `coord` object like {x : tilex, y: tiley }
|
|
* `zoom` quadtree zoom level
|
|
*/
|
|
getTileData: function(coord, zoom, callback) {
|
|
var template = this.tileUrl(coord, zoom);
|
|
|
|
var self = this;
|
|
var fetchTime = Profiler.metric('jsonarray:fetch time');
|
|
fetchTime.start();
|
|
torque.net.get(template, function (data) {
|
|
fetchTime.end();
|
|
var processed = null;
|
|
|
|
var processingTime = Profiler.metric('jsonarray:processing time');
|
|
var parsingTime = Profiler.metric('jsonarray:parsing time');
|
|
try {
|
|
processingTime.start();
|
|
parsingTime.start();
|
|
var rows = JSON.parse(data.responseText || data.response).rows;
|
|
parsingTime.end();
|
|
processed = self.proccessTile(rows, coord, zoom);
|
|
processingTime.end();
|
|
} catch(e) {
|
|
console.error("problem parsing JSON on ", coord, zoom);
|
|
}
|
|
|
|
callback(processed);
|
|
|
|
});
|
|
}
|
|
|
|
};
|
|
|
|
module.exports = json;
|
|
|
|
},{"../":10,"../profiler":17}],21:[function(require,module,exports){
|
|
var torque = require('../');
|
|
|
|
var Uint8Array = torque.types.Uint8Array;
|
|
var Int32Array = torque.types.Int32Array;
|
|
var Uint32Array = torque.types.Uint32Array;
|
|
var Uint8ClampedArray = torque.types.Uint8ClampedArray;
|
|
|
|
// format('hello, {0}', 'rambo') -> "hello, rambo"
|
|
function format(str) {
|
|
for(var i = 1; i < arguments.length; ++i) {
|
|
var attrs = arguments[i];
|
|
for(var attr in attrs) {
|
|
str = str.replace(RegExp('\\{' + attr + '\\}', 'g'), attrs[attr]);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
var tileJSON = function (options) {
|
|
this._ready = false;
|
|
this._tileQueue = [];
|
|
this.options = options;
|
|
|
|
this.options.coordinates_data_type = this.options.coordinates_data_type || Uint8Array;
|
|
|
|
if (this.options.data_aggregation) {
|
|
this.options.cumulative = this.options.data_aggregation === 'cumulative';
|
|
}
|
|
if (this.options.auth_token) {
|
|
var e = this.options.extra_params || (this.options.extra_params = {});
|
|
e.auth_token = this.options.auth_token;
|
|
}
|
|
if (!this.options.no_fetch_map) {
|
|
this._fetchMap();
|
|
}
|
|
};
|
|
|
|
tileJSON.prototype = {
|
|
|
|
NAME: "tileJSON",
|
|
|
|
/**
|
|
* return the torque tile encoded in an efficient javascript
|
|
* structure:
|
|
* {
|
|
* x:Uint8Array x coordinates in tile reference system, normally from 0-255
|
|
* y:Uint8Array y coordinates in tile reference system
|
|
* Index: Array index to the properties
|
|
* }
|
|
*/
|
|
proccessTile: function(rows, coord, zoom) {
|
|
var r;
|
|
var x = new this.options.coordinates_data_type(rows.length);
|
|
var y = new this.options.coordinates_data_type(rows.length);
|
|
|
|
// count number of dates
|
|
var dates = 0;
|
|
var maxDateSlots = -1;
|
|
for (r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
dates += row.dates__uint16.length;
|
|
for(var d = 0; d < row.dates__uint16.length; ++d) {
|
|
maxDateSlots = Math.max(maxDateSlots, row.dates__uint16[d]);
|
|
}
|
|
}
|
|
|
|
if(this.options.cumulative) {
|
|
dates = (1 + maxDateSlots) * rows.length;
|
|
}
|
|
|
|
var type = this.options.cumulative ? Uint32Array: Uint8ClampedArray;
|
|
|
|
// reserve memory for all the dates
|
|
var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
|
|
var timeCount = new Int32Array(maxDateSlots + 1);
|
|
var renderData = new (this.options.valueDataType || type)(dates);
|
|
var renderDataPos = new Uint32Array(dates);
|
|
|
|
var rowsPerSlot = {};
|
|
|
|
// precache pixel positions
|
|
for (var r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
x[r] = row.x__uint8 * this.options.resolution;
|
|
y[r] = row.y__uint8 * this.options.resolution;
|
|
|
|
var dates = row.dates__uint16;
|
|
var vals = row.vals__uint8;
|
|
if (!this.options.cumulative) {
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
|
|
if(this.options.cumulative) {
|
|
vals[j] += prev_val;
|
|
}
|
|
prev_val = vals[j];
|
|
rr.push([r, vals[j]]);
|
|
}
|
|
} else {
|
|
var valByDate = {}
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
valByDate[dates[j]] = vals[j];
|
|
}
|
|
var accum = 0;
|
|
|
|
// extend the latest to the end
|
|
for (var j = dates[0]; j <= maxDateSlots; ++j) {
|
|
var rr = rowsPerSlot[j] || (rowsPerSlot[j] = []);
|
|
var v = valByDate[j];
|
|
if (v) {
|
|
accum += v;
|
|
}
|
|
rr.push([r, accum]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// for each timeslot search active buckets
|
|
var renderDataIndex = 0;
|
|
var timeSlotIndex = 0;
|
|
var i = 0;
|
|
for(var i = 0; i <= maxDateSlots; ++i) {
|
|
var c = 0;
|
|
var slotRows = rowsPerSlot[i]
|
|
if(slotRows) {
|
|
for (var r = 0; r < slotRows.length; ++r) {
|
|
var rr = slotRows[r];
|
|
++c;
|
|
renderDataPos[renderDataIndex] = rr[0]
|
|
renderData[renderDataIndex] = rr[1];
|
|
++renderDataIndex;
|
|
}
|
|
}
|
|
timeIndex[i] = timeSlotIndex;
|
|
timeCount[i] = c;
|
|
timeSlotIndex += c;
|
|
}
|
|
|
|
return {
|
|
x: x,
|
|
y: y,
|
|
z: zoom,
|
|
coord: {
|
|
x: coord.x,
|
|
y: coord.y,
|
|
z: zoom
|
|
},
|
|
timeCount: timeCount,
|
|
timeIndex: timeIndex,
|
|
renderDataPos: renderDataPos,
|
|
renderData: renderData,
|
|
maxDate: maxDateSlots
|
|
};
|
|
},
|
|
|
|
setSteps: function(steps, opt) {
|
|
opt = opt || {};
|
|
if (this.options.steps !== steps) {
|
|
this.options.steps = steps;
|
|
this.options.step = (this.options.end - this.options.start)/this.getSteps();
|
|
this.options.step = this.options.step || 1;
|
|
if (!opt.silent) this.reload();
|
|
}
|
|
},
|
|
|
|
setOptions: function(opt) {
|
|
var refresh = false;
|
|
|
|
if(opt.resolution !== undefined && opt.resolution !== this.options.resolution) {
|
|
this.options.resolution = opt.resolution;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.steps !== undefined && opt.steps !== this.options.steps) {
|
|
this.setSteps(opt.steps, { silent: true });
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.column !== undefined && opt.column !== this.options.column) {
|
|
this.options.column = opt.column;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.countby !== undefined && opt.countby !== this.options.countby) {
|
|
this.options.countby = opt.countby;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.data_aggregation !== undefined) {
|
|
var c = opt.data_aggregation === 'cumulative';
|
|
if (this.options.cumulative !== c) {
|
|
this.options.cumulative = c;
|
|
refresh = true;
|
|
}
|
|
}
|
|
|
|
if (refresh) this.reload();
|
|
return refresh;
|
|
},
|
|
|
|
_extraParams: function(e) {
|
|
e = torque.extend(torque.extend({}, e), this.options.extra_params);
|
|
if (e) {
|
|
var p = [];
|
|
for(var k in e) {
|
|
var v = e[k];
|
|
if (v) {
|
|
if (torque.isArray(v)) {
|
|
for (var i = 0, len = v.length; i < len; i++) {
|
|
p.push(k + "[]=" + encodeURIComponent(v[i]));
|
|
}
|
|
} else {
|
|
p.push(k + "=" + encodeURIComponent(v));
|
|
}
|
|
}
|
|
}
|
|
return p.join('&');
|
|
}
|
|
return null;
|
|
},
|
|
|
|
getTileData: function(coord, zoom, callback) {
|
|
if(!this._ready) {
|
|
this._tileQueue.push([coord, zoom, callback]);
|
|
} else {
|
|
this._getTileData(coord, zoom, callback);
|
|
}
|
|
},
|
|
|
|
_setReady: function(ready) {
|
|
this._ready = true;
|
|
this._processQueue();
|
|
this.options.ready && this.options.ready();
|
|
},
|
|
|
|
_processQueue: function() {
|
|
var item;
|
|
while (item = this._tileQueue.pop()) {
|
|
this._getTileData.apply(this, item);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* `coord` object like {x : tilex, y: tiley }
|
|
* `zoom` quadtree zoom level
|
|
*/
|
|
_getTileData: function(coord, zoom, callback) {
|
|
var self = this;
|
|
var subdomains = this.options.subdomains || '0123';
|
|
var limit_x = Math.pow(2, zoom);
|
|
var corrected_x = ((coord.x % limit_x) + limit_x) % limit_x;
|
|
var index = Math.abs(corrected_x + coord.y) % subdomains.length;
|
|
var url = this.templateUrl
|
|
.replace('{x}', corrected_x)
|
|
.replace('{y}', coord.y)
|
|
.replace('{z}', zoom)
|
|
.replace('{s}', subdomains[index])
|
|
torque.net.get( url , function (data) {
|
|
if (data && data.responseText) {
|
|
var rows = JSON.parse(data.responseText);
|
|
callback(self.proccessTile(rows, coord, zoom));
|
|
} else {
|
|
callback(null);
|
|
}
|
|
});
|
|
},
|
|
|
|
getKeySpan: function() {
|
|
return {
|
|
start: this.options.start,
|
|
end: this.options.end,
|
|
step: this.options.step,
|
|
steps: this.options.steps,
|
|
columnType: this.options.column_type
|
|
};
|
|
},
|
|
|
|
setColumn: function(column, isTime) {
|
|
this.options.column = column;
|
|
this.options.is_time = isTime === undefined ? true: false;
|
|
this.reload();
|
|
},
|
|
|
|
reload: function() {
|
|
this._ready = false;
|
|
this._fetchMap();
|
|
},
|
|
|
|
getSteps: function() {
|
|
return Math.min(this.options.steps, this.options.data_steps);
|
|
},
|
|
|
|
getBounds: function() {
|
|
return this.options.bounds;
|
|
},
|
|
|
|
getSQL: function() {
|
|
return this.options.sql || "select * from " + this.options.table;
|
|
},
|
|
|
|
setSQL: function(sql) {
|
|
if (this.options.sql != sql) {
|
|
this.options.sql = sql;
|
|
this.reload();
|
|
}
|
|
},
|
|
|
|
_isUserTemplateUrl: function(t) {
|
|
return t && t.indexOf('{user}') !== -1;
|
|
},
|
|
|
|
isHttps: function() {
|
|
return this.options.maps_api_template.indexOf('https') === 0;
|
|
},
|
|
|
|
_fetchMap: function(callback) {
|
|
var self = this;
|
|
torque.net.get(this.options.tileJSON, function (data) {
|
|
data = JSON.parse(data.response);
|
|
if (data) {
|
|
if (data.errors){
|
|
self.options.errorCallback && self.options.errorCallback(data.errors);
|
|
return;
|
|
}
|
|
for(var k in data) {
|
|
self.options[k] = data[k];
|
|
}
|
|
self.templateUrl = data.tiles[0];
|
|
if (self.templateUrl.indexOf("http") !== 0){
|
|
self.templateUrl = self.options.tileJSON.substring(0, self.options.tileJSON.lastIndexOf("/") + 1) + self.templateUrl;
|
|
}
|
|
self._setReady(true);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
module.exports = tileJSON;
|
|
},{"../":10}],22:[function(require,module,exports){
|
|
var torque = require('../');
|
|
var Profiler = require('../profiler');
|
|
|
|
var Uint8Array = torque.types.Uint8Array;
|
|
var Int32Array = torque.types.Int32Array;
|
|
var Uint32Array = torque.types.Uint32Array;
|
|
var Uint8ClampedArray = torque.types.Uint8ClampedArray;
|
|
|
|
// format('hello, {0}', 'rambo') -> "hello, rambo"
|
|
function format(str) {
|
|
for(var i = 1; i < arguments.length; ++i) {
|
|
var attrs = arguments[i];
|
|
for(var attr in attrs) {
|
|
str = str.replace(RegExp('\\{' + attr + '\\}', 'g'), attrs[attr]);
|
|
}
|
|
}
|
|
return str;
|
|
}
|
|
|
|
var windshaft = function (options) {
|
|
this._ready = false;
|
|
this._tileQueue = [];
|
|
this.options = options;
|
|
|
|
this.options.is_time = this.options.is_time === undefined ? true: this.options.is_time;
|
|
this.options.tiler_protocol = options.tiler_protocol || 'http';
|
|
this.options.tiler_domain = options.tiler_domain || 'cartodb.com';
|
|
this.options.tiler_port = options.tiler_port || 80;
|
|
|
|
// backwards compatible
|
|
if (!options.maps_api_template) {
|
|
this._buildMapsApiTemplate(this.options);
|
|
} else {
|
|
this.options.maps_api_template = options.maps_api_template;
|
|
}
|
|
|
|
this.options.coordinates_data_type = this.options.coordinates_data_type || Uint8Array;
|
|
|
|
if (this.options.data_aggregation) {
|
|
this.options.cumulative = this.options.data_aggregation === 'cumulative';
|
|
}
|
|
if (this.options.auth_token) {
|
|
var e = this.options.extra_params || (this.options.extra_params = {});
|
|
e.auth_token = this.options.auth_token;
|
|
}
|
|
if (!this.options.no_fetch_map) {
|
|
this._fetchMap();
|
|
}
|
|
};
|
|
|
|
windshaft.prototype = {
|
|
|
|
/**
|
|
* return the torque tile encoded in an efficient javascript
|
|
* structure:
|
|
* {
|
|
* x:Uint8Array x coordinates in tile reference system, normally from 0-255
|
|
* y:Uint8Array y coordinates in tile reference system
|
|
* Index: Array index to the properties
|
|
* }
|
|
*/
|
|
proccessTile: function(rows, coord, zoom) {
|
|
var r;
|
|
var x = new this.options.coordinates_data_type(rows.length);
|
|
var y = new this.options.coordinates_data_type(rows.length);
|
|
|
|
var prof_mem = Profiler.metric('torque.provider.windshaft.mem');
|
|
var prof_point_count = Profiler.metric('torque.provider.windshaft.points');
|
|
var prof_process_time = Profiler.metric('torque.provider.windshaft.process_time').start();
|
|
|
|
// count number of dates
|
|
var dates = 0;
|
|
var maxDateSlots = -1;
|
|
for (r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
dates += row.dates__uint16.length;
|
|
for(var d = 0; d < row.dates__uint16.length; ++d) {
|
|
maxDateSlots = Math.max(maxDateSlots, row.dates__uint16[d]);
|
|
}
|
|
}
|
|
|
|
if(this.options.cumulative) {
|
|
dates = (1 + maxDateSlots) * rows.length;
|
|
}
|
|
|
|
var type = this.options.cumulative ? Uint32Array: Uint8ClampedArray;
|
|
|
|
// reserve memory for all the dates
|
|
var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
|
|
var timeCount = new Int32Array(maxDateSlots + 1);
|
|
var renderData = new (this.options.valueDataType || type)(dates);
|
|
var renderDataPos = new Uint32Array(dates);
|
|
|
|
prof_mem.inc(
|
|
4 * maxDateSlots + // timeIndex
|
|
4 * maxDateSlots + // timeCount
|
|
dates + //renderData
|
|
dates * 4
|
|
); //renderDataPos
|
|
|
|
prof_point_count.inc(rows.length);
|
|
|
|
var rowsPerSlot = {};
|
|
|
|
// precache pixel positions
|
|
for (var r = 0; r < rows.length; ++r) {
|
|
var row = rows[r];
|
|
x[r] = row.x__uint8 * this.options.resolution;
|
|
y[r] = row.y__uint8 * this.options.resolution;
|
|
|
|
var dates = row.dates__uint16;
|
|
var vals = row.vals__uint8;
|
|
if (!this.options.cumulative) {
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
|
|
if(this.options.cumulative) {
|
|
vals[j] += prev_val;
|
|
}
|
|
prev_val = vals[j];
|
|
rr.push([r, vals[j]]);
|
|
}
|
|
} else {
|
|
var valByDate = {}
|
|
for (var j = 0, len = dates.length; j < len; ++j) {
|
|
valByDate[dates[j]] = vals[j];
|
|
}
|
|
var accum = 0;
|
|
|
|
// extend the latest to the end
|
|
for (var j = dates[0]; j <= maxDateSlots; ++j) {
|
|
var rr = rowsPerSlot[j] || (rowsPerSlot[j] = []);
|
|
var v = valByDate[j];
|
|
if (v) {
|
|
accum += v;
|
|
}
|
|
rr.push([r, accum]);
|
|
}
|
|
|
|
/*var lastDateSlot = dates[dates.length - 1];
|
|
for (var j = lastDateSlot + 1; j <= maxDateSlots; ++j) {
|
|
var rr = rowsPerSlot[j] || (rowsPerSlot[j] = []);
|
|
rr.push([r, prev_val]);
|
|
}
|
|
*/
|
|
}
|
|
|
|
}
|
|
|
|
// for each timeslot search active buckets
|
|
var renderDataIndex = 0;
|
|
var timeSlotIndex = 0;
|
|
var i = 0;
|
|
for(var i = 0; i <= maxDateSlots; ++i) {
|
|
var c = 0;
|
|
var slotRows = rowsPerSlot[i]
|
|
if(slotRows) {
|
|
for (var r = 0; r < slotRows.length; ++r) {
|
|
var rr = slotRows[r];
|
|
++c;
|
|
renderDataPos[renderDataIndex] = rr[0]
|
|
renderData[renderDataIndex] = rr[1];
|
|
++renderDataIndex;
|
|
}
|
|
}
|
|
timeIndex[i] = timeSlotIndex;
|
|
timeCount[i] = c;
|
|
timeSlotIndex += c;
|
|
}
|
|
|
|
prof_process_time.end();
|
|
|
|
return {
|
|
x: x,
|
|
y: y,
|
|
z: zoom,
|
|
coord: {
|
|
x: coord.x,
|
|
y: coord.y,
|
|
z: zoom
|
|
},
|
|
timeCount: timeCount,
|
|
timeIndex: timeIndex,
|
|
renderDataPos: renderDataPos,
|
|
renderData: renderData,
|
|
maxDate: maxDateSlots
|
|
};
|
|
},
|
|
|
|
/*setCartoCSS: function(c) {
|
|
this.options.cartocss = c;
|
|
},*/
|
|
|
|
setSteps: function(steps, opt) {
|
|
opt = opt || {};
|
|
if (this.options.steps !== steps) {
|
|
this.options.steps = steps;
|
|
this.options.step = (this.options.end - this.options.start)/this.getSteps();
|
|
this.options.step = this.options.step || 1;
|
|
if (!opt.silent) this.reload();
|
|
}
|
|
},
|
|
|
|
setOptions: function(opt) {
|
|
var refresh = false;
|
|
|
|
if(opt.resolution !== undefined && opt.resolution !== this.options.resolution) {
|
|
this.options.resolution = opt.resolution;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.steps !== undefined && opt.steps !== this.options.steps) {
|
|
this.setSteps(opt.steps, { silent: true });
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.column !== undefined && opt.column !== this.options.column) {
|
|
this.options.column = opt.column;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.countby !== undefined && opt.countby !== this.options.countby) {
|
|
this.options.countby = opt.countby;
|
|
refresh = true;
|
|
}
|
|
|
|
if(opt.data_aggregation !== undefined) {
|
|
var c = opt.data_aggregation === 'cumulative';
|
|
if (this.options.cumulative !== c) {
|
|
this.options.cumulative = c;
|
|
refresh = true;
|
|
}
|
|
}
|
|
|
|
if (refresh) this.reload();
|
|
return refresh;
|
|
},
|
|
|
|
_extraParams: function(e) {
|
|
e = torque.extend(torque.extend({}, e), this.options.extra_params);
|
|
if (e) {
|
|
var p = [];
|
|
for(var k in e) {
|
|
var v = e[k];
|
|
if (v) {
|
|
if (torque.isArray(v)) {
|
|
for (var i = 0, len = v.length; i < len; i++) {
|
|
p.push(k + "[]=" + encodeURIComponent(v[i]));
|
|
}
|
|
} else {
|
|
p.push(k + "=" + encodeURIComponent(v));
|
|
}
|
|
}
|
|
}
|
|
return p.join('&');
|
|
}
|
|
return null;
|
|
},
|
|
|
|
getTileData: function(coord, zoom, callback) {
|
|
if(!this._ready) {
|
|
this._tileQueue.push([coord, zoom, callback]);
|
|
} else {
|
|
this._getTileData(coord, zoom, callback);
|
|
}
|
|
},
|
|
|
|
_setReady: function(ready) {
|
|
this._ready = true;
|
|
this._processQueue();
|
|
this.options.ready && this.options.ready();
|
|
},
|
|
|
|
_processQueue: function() {
|
|
var item;
|
|
while (item = this._tileQueue.pop()) {
|
|
this._getTileData.apply(this, item);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* `coord` object like {x : tilex, y: tiley }
|
|
* `zoom` quadtree zoom level
|
|
*/
|
|
_getTileData: function(coord, zoom, callback) {
|
|
var self = this;
|
|
var prof_fetch_time = Profiler.metric('torque.provider.windshaft.tile.fetch').start();
|
|
var subdomains = this.options.subdomains || '0123';
|
|
var limit_x = Math.pow(2, zoom);
|
|
var corrected_x = ((coord.x % limit_x) + limit_x) % limit_x;
|
|
var index = Math.abs(corrected_x + coord.y) % subdomains.length;
|
|
var url = this.templateUrl
|
|
.replace('{x}', corrected_x)
|
|
.replace('{y}', coord.y)
|
|
.replace('{z}', zoom)
|
|
.replace('{s}', subdomains[index])
|
|
|
|
var extra = this._extraParams();
|
|
torque.net.get( url + (extra ? "?" + extra: ''), function (data) {
|
|
prof_fetch_time.end();
|
|
if (data && data.responseText) {
|
|
var rows = JSON.parse(data.responseText);
|
|
callback(self.proccessTile(rows, coord, zoom));
|
|
} else {
|
|
Profiler.metric('torque.provider.windshaft.tile.error').inc();
|
|
callback(null);
|
|
}
|
|
});
|
|
},
|
|
|
|
getKeySpan: function() {
|
|
return {
|
|
start: this.options.start,
|
|
end: this.options.end,
|
|
step: this.options.step,
|
|
steps: this.options.steps,
|
|
columnType: this.options.column_type
|
|
};
|
|
},
|
|
|
|
setColumn: function(column, isTime) {
|
|
this.options.column = column;
|
|
this.options.is_time = isTime === undefined ? true: false;
|
|
this.reload();
|
|
},
|
|
|
|
reload: function() {
|
|
this._ready = false;
|
|
this._fetchMap();
|
|
},
|
|
|
|
getSteps: function() {
|
|
return Math.min(this.options.steps, this.options.data_steps);
|
|
},
|
|
|
|
getBounds: function() {
|
|
return this.options.bounds;
|
|
},
|
|
|
|
getSQL: function() {
|
|
return this.options.sql || "select * from " + this.options.table;
|
|
},
|
|
|
|
setSQL: function(sql) {
|
|
if (this.options.sql != sql) {
|
|
this.options.sql = sql;
|
|
this.reload();
|
|
}
|
|
},
|
|
|
|
_buildMapsApiTemplate: function(opts) {
|
|
var user = opts.user_name || opts.user;
|
|
opts.maps_api_template = opts.tiler_protocol +
|
|
"://" + ((user) ? "{user}.":"") +
|
|
opts.tiler_domain +
|
|
((opts.tiler_port != "") ? (":" + opts.tiler_port) : "");
|
|
},
|
|
|
|
_tilerHost: function() {
|
|
var opts = this.options;
|
|
var user = opts.user_name || opts.user;
|
|
return opts.maps_api_template.replace('{user}', user);
|
|
},
|
|
|
|
url: function () {
|
|
var opts = this.options;
|
|
var cdn_host = opts.cdn_url;
|
|
var has_empty_cdn = !cdn_host || (cdn_host && (!cdn_host.http && !cdn_host.https));
|
|
|
|
if (opts.no_cdn || has_empty_cdn) {
|
|
return this._tilerHost();
|
|
} else {
|
|
var protocol = this.isHttps() ? 'https': 'http';
|
|
var h = protocol + "://";
|
|
if (!this.isHttps()) {
|
|
h += "{s}.";
|
|
}
|
|
var cdn_url = cdn_host[protocol];
|
|
// build default template url if the cdn url is not templatized
|
|
// this is for backwards compatiblity, ideally we should use the url
|
|
// that tiler sends to us right away
|
|
if (!this._isUserTemplateUrl(cdn_url)) {
|
|
cdn_url = cdn_url + "/{user}";
|
|
}
|
|
var user = opts.user_name || opts.user;
|
|
h += cdn_url.replace('{user}', user)
|
|
return h;
|
|
}
|
|
|
|
},
|
|
|
|
_isUserTemplateUrl: function(t) {
|
|
return t && t.indexOf('{user}') !== -1;
|
|
},
|
|
|
|
isHttps: function() {
|
|
return this.options.maps_api_template.indexOf('https') === 0;
|
|
},
|
|
|
|
_generateCartoCSS: function() {
|
|
var attr = {
|
|
'-torque-frame-count': this.options.steps,
|
|
'-torque-resolution': this.options.resolution,
|
|
'-torque-aggregation-function': "'" + this.options.countby + "'",
|
|
'-torque-time-attribute': "'" + this.options.column + "'",
|
|
'-torque-data-aggregation': this.options.cumulative ? 'cumulative': 'linear',
|
|
};
|
|
var st = 'Map{';
|
|
for (var k in attr) {
|
|
st += k + ":" + attr[k] + ";";
|
|
}
|
|
return st + "}";
|
|
},
|
|
|
|
_fetchMap: function(callback) {
|
|
var self = this;
|
|
var layergroup = {};
|
|
var host = this.options.dynamic_cdn ? this.url().replace('{s}', '0'): this._tilerHost();
|
|
var url = host + "/api/v1/map";
|
|
var named = this.options.named_map;
|
|
var allParams = {};
|
|
|
|
if(named) {
|
|
//tiles/template
|
|
url = host + "/api/v1/map/named/" + named.name + "/jsonp";
|
|
if(typeof named.params !== "undefined"){
|
|
layergroup = named.params;
|
|
}
|
|
} else {
|
|
layergroup = {
|
|
"version": "1.0.1",
|
|
"stat_tag": this.options.stat_tag || 'torque',
|
|
"layers": [{
|
|
"type": "torque",
|
|
"options": {
|
|
"cartocss_version": "1.0.0",
|
|
"cartocss": this._generateCartoCSS(),
|
|
"sql": this.getSQL()
|
|
}
|
|
}]
|
|
};
|
|
}
|
|
|
|
if(this.options.stat_tag){
|
|
allParams["stat_tag"] = this.options.stat_tag;
|
|
}
|
|
|
|
extra = this._extraParams(allParams);
|
|
|
|
// tiler needs map_key instead of api_key
|
|
// so replace it
|
|
if (extra) {
|
|
extra = extra.replace('api_key=', 'map_key=');
|
|
}
|
|
|
|
url = url +
|
|
"?config=" + encodeURIComponent(JSON.stringify(layergroup)) +
|
|
"&callback=?" + (extra ? "&" + extra: '');
|
|
|
|
var map_instance_time = Profiler.metric('torque.provider.windshaft.layergroup.time').start();
|
|
torque.net.jsonp(url, function (data) {
|
|
map_instance_time.end();
|
|
if (data) {
|
|
if (data.errors){
|
|
self.options.errorCallback && self.options.errorCallback(data.errors);
|
|
return;
|
|
}
|
|
var torque_key = Object.keys(data.metadata.torque)[0]
|
|
var opt = data.metadata.torque[torque_key];
|
|
for(var k in opt) {
|
|
self.options[k] = opt[k];
|
|
}
|
|
// use cdn_url if present
|
|
if (data.cdn_url) {
|
|
var c = self.options.cdn_url = self.options.cdn_url || {};
|
|
c.http = data.cdn_url.http || c.http;
|
|
c.https = data.cdn_url.https || c.https;
|
|
}
|
|
self.templateUrl = self.url() + "/api/v1/map/" + data.layergroupid + "/" + torque_key + "/{z}/{x}/{y}.json.torque";
|
|
self._setReady(true);
|
|
} else {
|
|
Profiler.metric('torque.provider.windshaft.layergroup.error').inc();
|
|
}
|
|
}, { callbackName: self.options.instanciateCallback });
|
|
}
|
|
|
|
};
|
|
|
|
module.exports = windshaft;
|
|
|
|
},{"../":10,"../profiler":17}],23:[function(require,module,exports){
|
|
var TAU = Math.PI*2;
|
|
// min value to render a line.
|
|
// it does not make sense to render a line of a width is not even visible
|
|
var LINEWIDTH_MIN_VALUE = 0.05;
|
|
var MAX_SPRITE_RADIUS = 255;
|
|
|
|
function renderPoint(ctx, st) {
|
|
ctx.fillStyle = st['marker-fill'];
|
|
var pixel_size = st['marker-width'];
|
|
|
|
// render a circle
|
|
// TODO: fill and stroke order should depend on the order of the properties
|
|
// in the cartocss.
|
|
|
|
// fill
|
|
ctx.beginPath();
|
|
ctx.arc(0, 0, pixel_size, 0, TAU, true, true);
|
|
ctx.closePath();
|
|
|
|
if (st['marker-opacity'] !== undefined ) st['marker-fill-opacity'] = st['marker-line-opacity'] = st['marker-opacity'];
|
|
|
|
if (st['marker-fill']) {
|
|
ctx.globalAlpha = st['marker-fill-opacity'] >= 0? st['marker-fill-opacity']: 1;
|
|
|
|
if (ctx.globalAlpha > 0) {
|
|
ctx.fill();
|
|
}
|
|
}
|
|
|
|
// stroke
|
|
if (st['marker-line-color'] && st['marker-line-width'] && st['marker-line-width'] > LINEWIDTH_MIN_VALUE) {
|
|
ctx.globalAlpha = st['marker-line-opacity'] >= 0? st['marker-line-opacity']: 1;
|
|
if (st['marker-line-width'] !== undefined) {
|
|
ctx.lineWidth = st['marker-line-width'];
|
|
}
|
|
ctx.strokeStyle = st['marker-line-color'];
|
|
|
|
// do not render for alpha = 0
|
|
if (ctx.globalAlpha > 0) {
|
|
ctx.stroke();
|
|
}
|
|
}
|
|
}
|
|
|
|
function renderRectangle(ctx, st) {
|
|
ctx.fillStyle = st['marker-fill'];
|
|
var pixel_size = st['marker-width'];
|
|
var w = pixel_size * 2;
|
|
|
|
// fill
|
|
if (st['marker-fill']) {
|
|
if (st['marker-fill-opacity'] !== undefined || st['marker-opacity'] !== undefined) {
|
|
ctx.globalAlpha = st['marker-fill-opacity'] || st['marker-opacity'];
|
|
}
|
|
ctx.fillRect(-pixel_size, -pixel_size, w, w)
|
|
}
|
|
|
|
// stroke
|
|
ctx.globalAlpha = 1.0;
|
|
if (st['marker-line-color'] && st['marker-line-width']) {
|
|
if (st['marker-line-opacity']) {
|
|
ctx.globalAlpha = st['marker-line-opacity'];
|
|
}
|
|
if (st['marker-line-width']) {
|
|
ctx.lineWidth = st['marker-line-width'];
|
|
}
|
|
ctx.strokeStyle = st['marker-line-color'];
|
|
|
|
// do not render for alpha = 0
|
|
if (ctx.globalAlpha > 0) {
|
|
ctx.strokeRect(-pixel_size, -pixel_size, w, w)
|
|
}
|
|
}
|
|
}
|
|
|
|
function renderSprite(ctx, img, st) {
|
|
|
|
if(img.complete){
|
|
if (st['marker-fill-opacity'] !== undefined || st['marker-opacity'] !== undefined) {
|
|
ctx.globalAlpha = st['marker-fill-opacity'] || st['marker-opacity'];
|
|
}
|
|
ctx.drawImage(img, 0, 0, Math.min(img.width, MAX_SPRITE_RADIUS), Math.min(img.height, MAX_SPRITE_RADIUS));
|
|
}
|
|
}
|
|
|
|
module.exports = {
|
|
renderPoint: renderPoint,
|
|
renderSprite: renderSprite,
|
|
renderRectangle: renderRectangle,
|
|
MAX_SPRITE_RADIUS: MAX_SPRITE_RADIUS
|
|
};
|
|
|
|
},{}],24:[function(require,module,exports){
|
|
module.exports = {
|
|
cartocss: require('./cartocss_render'),
|
|
Point: require('./point'),
|
|
Rectangle: require('./rectangle')
|
|
};
|
|
},{"./cartocss_render":23,"./point":25,"./rectangle":26}],25:[function(require,module,exports){
|
|
(function (global){
|
|
var torque = require('../');
|
|
var cartocss = require('./cartocss_render');
|
|
var Profiler = require('../profiler');
|
|
var carto = global.carto || require('carto');
|
|
var Filters = require('./torque_filters');
|
|
|
|
var TAU = Math.PI * 2;
|
|
var DEFAULT_CARTOCSS = [
|
|
'#layer {',
|
|
' marker-fill: #662506;',
|
|
' marker-width: 4;',
|
|
' [value > 1] { marker-fill: #FEE391; }',
|
|
' [value > 2] { marker-fill: #FEC44F; }',
|
|
' [value > 3] { marker-fill: #FE9929; }',
|
|
' [value > 4] { marker-fill: #EC7014; }',
|
|
' [value > 5] { marker-fill: #CC4C02; }',
|
|
' [value > 6] { marker-fill: #993404; }',
|
|
' [value > 7] { marker-fill: #662506; }',
|
|
'}'
|
|
].join('\n');
|
|
|
|
var COMP_OP_TO_CANVAS = {
|
|
"src": 'source-over',
|
|
"src-over": 'source-over',
|
|
"dst-over": 'destination-over',
|
|
"src-in": 'source-in',
|
|
"dst-in": 'destination-in',
|
|
"src-out": 'source-out',
|
|
"dst-out": 'destination-out',
|
|
"src-atop": 'source-atop',
|
|
"dst-atop": 'destination-atop',
|
|
"xor": 'xor',
|
|
"darken": 'darken',
|
|
"lighten": 'lighten'
|
|
}
|
|
|
|
function compop2canvas(compop) {
|
|
return COMP_OP_TO_CANVAS[compop] || compop;
|
|
}
|
|
|
|
//
|
|
// this renderer just render points depending of the value
|
|
//
|
|
function PointRenderer(canvas, options) {
|
|
if (!canvas) {
|
|
throw new Error("canvas can't be undefined");
|
|
}
|
|
this.options = options;
|
|
this._canvas = canvas;
|
|
this._ctx = canvas.getContext('2d');
|
|
this._sprites = []; // sprites per layer
|
|
this._shader = null;
|
|
this._icons = {};
|
|
this._iconsToLoad = 0;
|
|
this._filters = new Filters(this._canvas, {canvasClass: options.canvasClass});
|
|
this.setCartoCSS(this.options.cartocss || DEFAULT_CARTOCSS);
|
|
this.TILE_SIZE = 256;
|
|
this._style = null;
|
|
this._gradients = {};
|
|
|
|
this._forcePoints = false;
|
|
}
|
|
|
|
torque.extend(PointRenderer.prototype, torque.Event, {
|
|
|
|
clearCanvas: function() {
|
|
var canvas = this._canvas;
|
|
var color = this._Map['-torque-clear-color']
|
|
// shortcut for the default value
|
|
if (color === "rgba(255, 255, 255, 0)" || !color) {
|
|
this._canvas.width = this._canvas.width;
|
|
} else {
|
|
var ctx = this._ctx;
|
|
ctx.setTransform(1, 0, 0, 1, 0, 0);
|
|
var compop = this._Map['comp-op']
|
|
ctx.globalCompositeOperation = compop2canvas(compop);
|
|
ctx.fillStyle = color;
|
|
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
|
}
|
|
},
|
|
|
|
setCanvas: function(canvas) {
|
|
this._canvas = canvas;
|
|
this._ctx = canvas.getContext('2d');
|
|
},
|
|
|
|
//
|
|
// sets the cartocss style to render stuff
|
|
//
|
|
setCartoCSS: function(cartocss) {
|
|
// clean sprites
|
|
this.setShader(new carto.RendererJS().render(cartocss));
|
|
},
|
|
|
|
setShader: function(shader) {
|
|
// clean sprites
|
|
this._sprites = [];
|
|
this._shader = shader;
|
|
this._Map = this._shader.getDefault().getStyle({}, { zoom: 0 });
|
|
var img_names = this._shader.getImageURLs();
|
|
this._preloadIcons(img_names);
|
|
},
|
|
|
|
clearSpriteCache: function() {
|
|
this._sprites = [];
|
|
},
|
|
|
|
|
|
//
|
|
// generate sprite based on cartocss style
|
|
//
|
|
generateSprite: function(shader, value, shaderVars) {
|
|
var self = this;
|
|
var prof = Profiler.metric('torque.renderer.point.generateSprite').start();
|
|
var st = shader.getStyle({
|
|
value: value
|
|
}, shaderVars);
|
|
if(this._style === null || this._style !== st){
|
|
this._style = st;
|
|
}
|
|
|
|
var pointSize = st['marker-width'];
|
|
if (!pointSize) {
|
|
return null;
|
|
}
|
|
|
|
if (st['marker-opacity'] === 0 && !st['marker-line-opacity']) {
|
|
return null;
|
|
}
|
|
|
|
var canvas = this._createCanvas();
|
|
var ctx = canvas.getContext('2d');
|
|
|
|
var markerFile = st["marker-file"] || st["point-file"];
|
|
var qualifiedUrl = markerFile && this._qualifyURL(markerFile);
|
|
|
|
if (qualifiedUrl && this._iconsToLoad <= 0 && this._icons[qualifiedUrl]) {
|
|
var img = this._icons[qualifiedUrl];
|
|
|
|
var dWidth = Math.min(st['marker-width'] * 2 || img.width, cartocss.MAX_SPRITE_RADIUS * 2);
|
|
var dHeight = Math.min((st['marker-height'] || dWidth) * (img.width / img.height), cartocss.MAX_SPRITE_RADIUS * 2);
|
|
|
|
canvas.width = ctx.width = dWidth;
|
|
canvas.height = ctx.height = dHeight;
|
|
|
|
ctx.scale(dWidth/img.width, dHeight/img.height);
|
|
|
|
cartocss.renderSprite(ctx, img, st);
|
|
} else {
|
|
// take into account the exterior ring to calculate the size
|
|
var canvasSize = (st['marker-line-width'] || 0) + pointSize*2;
|
|
var w = ctx.width = canvas.width = ctx.height = canvas.height = Math.ceil(canvasSize);
|
|
ctx.translate(w/2, w/2);
|
|
|
|
var mt = st['marker-type'];
|
|
if (mt && mt === 'rectangle') {
|
|
cartocss.renderRectangle(ctx, st);
|
|
} else {
|
|
cartocss.renderPoint(ctx, st);
|
|
}
|
|
}
|
|
prof.end(true);
|
|
if (torque.flags.sprites_to_images) {
|
|
var i = this._createImage();
|
|
i.src = canvas.toDataURL();
|
|
return i;
|
|
}
|
|
|
|
return canvas;
|
|
},
|
|
|
|
//
|
|
// renders all the layers (and frames for each layer) from cartocss
|
|
//
|
|
renderTile: function(tile, key, callback) {
|
|
if (this._iconsToLoad > 0) {
|
|
this.on('allIconsLoaded', function() {
|
|
this.renderTile.apply(this, [tile, key, callback]);
|
|
});
|
|
return false;
|
|
}
|
|
var prof = Profiler.metric('torque.renderer.point.renderLayers').start();
|
|
var layers = this._shader.getLayers();
|
|
for(var i = 0, n = layers.length; i < n; ++i ) {
|
|
var layer = layers[i];
|
|
if (layer.name() !== "Map") {
|
|
var sprites = this._sprites[i] || (this._sprites[i] = {});
|
|
// frames for each layer
|
|
for(var fr = 0; fr < layer.frames().length; ++fr) {
|
|
var frame = layer.frames()[fr];
|
|
var fr_sprites = sprites[frame] || (sprites[frame] = []);
|
|
this._renderTile(tile, key - frame, frame, fr_sprites, layer);
|
|
}
|
|
}
|
|
}
|
|
|
|
prof.end(true);
|
|
|
|
return callback && callback(null);
|
|
},
|
|
|
|
_createCanvas: function() {
|
|
return this.options.canvasClass
|
|
? new this.options.canvasClass()
|
|
: document.createElement('canvas');
|
|
},
|
|
|
|
_createImage: function() {
|
|
return this.options.imageClass
|
|
? new this.options.imageClass()
|
|
: new Image();
|
|
},
|
|
|
|
_setImageSrc: function(img, url, callback) {
|
|
if (this.options.setImageSrc) {
|
|
this.options.setImageSrc(img, url, callback);
|
|
} else {
|
|
img.onload = function(){
|
|
callback(null);
|
|
};
|
|
img.onerror = function(){
|
|
callback(new Error('Could not load image'));
|
|
};
|
|
img.src = url;
|
|
}
|
|
},
|
|
|
|
_qualifyURL: function(url) {
|
|
if (typeof this.options.qualifyURL !== "undefined"){
|
|
return this.options.qualifyURL(url);
|
|
}
|
|
else{
|
|
var a = document.createElement('a');
|
|
a.href = url;
|
|
return a.href;
|
|
}
|
|
},
|
|
|
|
//
|
|
// renders a tile in the canvas for key defined in
|
|
// the torque tile
|
|
//
|
|
_renderTile: function(tile, key, frame_offset, sprites, shader, shaderVars) {
|
|
if (!this._canvas) return;
|
|
|
|
var prof = Profiler.metric('torque.renderer.point.renderTile').start();
|
|
var ctx = this._ctx;
|
|
var blendMode = compop2canvas(shader.eval('comp-op')) || this.options.blendmode;
|
|
if (blendMode) {
|
|
ctx.globalCompositeOperation = blendMode;
|
|
}
|
|
if (this.options.cumulative && key > tile.maxDate) {
|
|
//TODO: precache because this tile is not going to change
|
|
key = tile.maxDate;
|
|
}
|
|
var tileMax = this.options.resolution * (this.TILE_SIZE/this.options.resolution - 1)
|
|
var activePixels = tile.timeCount[key];
|
|
var anchor = this.options.resolution/2;
|
|
if (activePixels) {
|
|
var pixelIndex = tile.timeIndex[key];
|
|
for(var p = 0; p < activePixels; ++p) {
|
|
var posIdx = tile.renderDataPos[pixelIndex + p];
|
|
var c = tile.renderData[pixelIndex + p];
|
|
if (c) {
|
|
var sp = sprites[c];
|
|
if (sp === undefined) {
|
|
sp = sprites[c] = this.generateSprite(shader, c, torque.extend({ zoom: tile.z, 'frame-offset': frame_offset }, shaderVars));
|
|
}
|
|
if (sp) {
|
|
var x = tile.x[posIdx]- (sp.width >> 1) + anchor;
|
|
var y = tileMax - tile.y[posIdx] + anchor; // flip mercator
|
|
ctx.drawImage(sp, x, y - (sp.height >> 1));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
prof.end(true);
|
|
},
|
|
|
|
setBlendMode: function(b) {
|
|
this.options.blendmode = b;
|
|
},
|
|
|
|
/**
|
|
* get active points for a step in active zoom
|
|
* returns a list of bounding boxes [[sw, ne] , [], []] where ne is a {lat: .., lon: ...} obj
|
|
* empty list if there is no active pixels
|
|
*/
|
|
getActivePointsBBox: function(tile, step) {
|
|
var positions = [];
|
|
var mercator = new torque.Mercator();
|
|
|
|
var tileMax = this.options.resolution * (this.TILE_SIZE/this.options.resolution - 1);
|
|
//this.renderer.renderTile(tile, this.key, pos.x, pos.y);
|
|
var activePixels = tile.timeCount[step];
|
|
var pixelIndex = tile.timeIndex[step];
|
|
for(var p = 0; p < activePixels; ++p) {
|
|
var posIdx = tile.renderDataPos[pixelIndex + p];
|
|
var c = tile.renderData[pixelIndex + p];
|
|
if (c) {
|
|
var x = tile.x[posIdx];
|
|
var y = tileMax - tile.y[posIdx]; // flip mercator
|
|
positions.push(mercator.tilePixelBBox(
|
|
tile.coord.x,
|
|
tile.coord.y,
|
|
tile.coord.z,
|
|
x, y
|
|
));
|
|
}
|
|
}
|
|
return positions;
|
|
},
|
|
|
|
/**
|
|
* returns an array with all the values for the active pixels
|
|
* @tile tile object
|
|
* @step integer with the step
|
|
* @values (optional) an array where the values will be placed
|
|
*/
|
|
getValues: function(tile, step, values) {
|
|
values = values || [];
|
|
var activePixels = tile.timeCount[step];
|
|
var pixelIndex = tile.timeIndex[step];
|
|
for(var p = 0; p < activePixels; ++p) {
|
|
var posIdx = tile.renderDataPos[pixelIndex + p];
|
|
values.push(tile.renderData[pixelIndex + p]);
|
|
}
|
|
return values;
|
|
},
|
|
|
|
// return the value for x, y (tile coordinates)
|
|
// null for no value
|
|
getValueFor: function(tile, step, px, py) {
|
|
var mercator = new torque.Mercator();
|
|
var res = this.options.resolution;
|
|
var res2 = res >> 1;
|
|
|
|
var tileMax = this.options.resolution * (this.TILE_SIZE/this.options.resolution - 1);
|
|
//this.renderer.renderTile(tile, this.key, pos.x, pos.y);
|
|
var activePixels = tile.timeCount[step];
|
|
var pixelIndex = tile.timeIndex[step];
|
|
for(var p = 0; p < activePixels; ++p) {
|
|
var posIdx = tile.renderDataPos[pixelIndex + p];
|
|
var c = tile.renderData[pixelIndex + p];
|
|
if (c) {
|
|
var x = tile.x[posIdx];
|
|
var y = tileMax - tile.y[posIdx];
|
|
var dx = px + res2 - x;
|
|
var dy = py + res2 - y;
|
|
if (dx >= 0 && dx < res && dy >= 0 && dy < res) {
|
|
return {
|
|
value: c,
|
|
bbox: mercator.tilePixelBBox(
|
|
tile.coord.x,
|
|
tile.coord.y,
|
|
tile.coord.z,
|
|
x - res2, y - res2, res
|
|
)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
},
|
|
|
|
_preloadIcons: function(img_names) {
|
|
var self = this;
|
|
|
|
if (img_names.length > 0 && !this._forcePoints) {
|
|
|
|
var qualifiedImageUrlSet = Object.keys(img_names.reduce(function(imgNamesMap, imgName) {
|
|
var qualifiedUrl = self._qualifyURL(imgName);
|
|
if (!self._icons[qualifiedUrl]) {
|
|
imgNamesMap[qualifiedUrl] = true;
|
|
}
|
|
return imgNamesMap;
|
|
}, {}));
|
|
|
|
var filtered = self._shader.getLayers().some(function(layer) {
|
|
return typeof layer.shader["image-filters"] !== "undefined";
|
|
});
|
|
|
|
this._iconsToLoad += qualifiedImageUrlSet.length;
|
|
|
|
qualifiedImageUrlSet.forEach(function(qualifiedImageUrl) {
|
|
self._icons[qualifiedImageUrl] = null;
|
|
|
|
var img = self._createImage();
|
|
|
|
if (filtered) {
|
|
img.crossOrigin = 'Anonymous';
|
|
}
|
|
|
|
self._setImageSrc(img, qualifiedImageUrl, function(err) {
|
|
if (err) {
|
|
self._forcePoints = true;
|
|
self.clearSpriteCache();
|
|
self._iconsToLoad = 0;
|
|
self.fire("allIconsLoaded");
|
|
if(filtered) {
|
|
console.info("Only CORS-enabled, or same domain image-files can be used in combination with image-filters");
|
|
}
|
|
console.error("Couldn't get marker-file " + qualifiedImageUrl);
|
|
} else {
|
|
self._icons[qualifiedImageUrl] = img;
|
|
self._iconsToLoad--;
|
|
|
|
if (self._iconsToLoad <= 0){
|
|
self.clearSpriteCache();
|
|
self.fire("allIconsLoaded");
|
|
}
|
|
}
|
|
});
|
|
});
|
|
} else {
|
|
this.fire("allIconsLoaded");
|
|
}
|
|
},
|
|
|
|
applyFilters: function(){
|
|
if(this._style){
|
|
if(this._style['image-filters']){
|
|
function gradientKey(imf){
|
|
var hash = ""
|
|
for(var i = 0; i < imf.args.length; i++){
|
|
var rgb = imf.args[i].rgb;
|
|
hash += rgb[0] + ":" + rgb[1] + ":" + rgb[2];
|
|
}
|
|
return hash;
|
|
}
|
|
var gradient = this._gradients[gradientKey(this._style['image-filters'])];
|
|
if(!gradient){
|
|
function componentToHex(c) {
|
|
var hex = c.toString(16);
|
|
return hex.length == 1 ? "0" + hex : hex;
|
|
}
|
|
|
|
function rgbToHex(r, g, b) {
|
|
return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
|
|
}
|
|
gradient = {};
|
|
var colorize = this._style['image-filters'].args;
|
|
|
|
var increment = 1/colorize.length;
|
|
for (var i = 0; i < colorize.length; i++){
|
|
var key = increment * i + increment;
|
|
var rgb = colorize[i].rgb;
|
|
var formattedColor = rgbToHex(rgb[0], rgb[1], rgb[2]);
|
|
gradient[key] = formattedColor;
|
|
}
|
|
this._gradients[gradientKey(this._style['image-filters'])] = gradient;
|
|
}
|
|
this._filters.gradient(gradient);
|
|
this._filters.draw();
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
|
|
// exports public api
|
|
module.exports = PointRenderer;
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"../":10,"../profiler":17,"./cartocss_render":23,"./torque_filters":27,"carto":undefined}],26:[function(require,module,exports){
|
|
(function (global){
|
|
var carto = global.carto || require('carto');
|
|
|
|
var DEFAULT_CARTOCSS = [
|
|
'#layer {',
|
|
' polygon-fill: #FFFF00;',
|
|
' [value > 10] { polygon-fill: #FFFF00; }',
|
|
' [value > 100] { polygon-fill: #FFCC00; }',
|
|
' [value > 1000] { polygon-fill: #FE9929; }',
|
|
' [value > 10000] { polygon-fill: #FF6600; }',
|
|
' [value > 100000] { polygon-fill: #FF3300; }',
|
|
'}'
|
|
].join('\n');
|
|
|
|
var TAU = Math.PI * 2;
|
|
|
|
//
|
|
// this renderer just render points depending of the value
|
|
//
|
|
function RectanbleRenderer(canvas, options) {
|
|
this.options = options;
|
|
carto.tree.Reference.set(torque['torque-reference']);
|
|
this.setCanvas(canvas);
|
|
this.setCartoCSS(this.options.cartocss || DEFAULT_CARTOCSS);
|
|
}
|
|
|
|
RectanbleRenderer.prototype = {
|
|
|
|
//
|
|
// sets the cartocss style to render stuff
|
|
//
|
|
setCartoCSS: function(cartocss) {
|
|
this._cartoCssStyle = new carto.RendererJS().render(cartocss);
|
|
if(this._cartoCssStyle.getLayers().length > 1) {
|
|
throw new Error("only one CartoCSS layer is supported");
|
|
}
|
|
this._shader = this._cartoCssStyle.getLayers()[0].shader;
|
|
},
|
|
|
|
setCanvas: function(canvas) {
|
|
if(!canvas) return;
|
|
this._canvas = canvas;
|
|
this._ctx = canvas.getContext('2d');
|
|
},
|
|
|
|
accumulate: function(tile, keys) {
|
|
var prof = Profiler.metric('RectangleRender:accumulate').start();
|
|
var x, y, posIdx, p, k, key, activePixels, pixelIndex;
|
|
var res = this.options.resolution;
|
|
var s = 256/res;
|
|
var accum = new Float32Array(s*s);
|
|
|
|
if(typeof(keys) !== 'object') {
|
|
keys = [keys];
|
|
}
|
|
|
|
for(k = 0; k < keys.length; ++k) {
|
|
key = keys[k];
|
|
activePixels = tile.timeCount[key];
|
|
if(activePixels) {
|
|
pixelIndex = tile.timeIndex[key];
|
|
for(p = 0; p < activePixels; ++p) {
|
|
posIdx = tile.renderDataPos[pixelIndex + p];
|
|
x = tile.x[posIdx]/res;
|
|
y = tile.y[posIdx]/res;
|
|
accum[x*s + y] += tile.renderData[pixelIndex + p];
|
|
}
|
|
}
|
|
}
|
|
|
|
prof.end();
|
|
return accum;
|
|
},
|
|
|
|
renderTileAccum: function(accum, px, py) {
|
|
var prof = Profiler.metric('RectangleRender:renderTileAccum').start();
|
|
var color, x, y, alpha;
|
|
var res = this.options.resolution;
|
|
var ctx = this._ctx;
|
|
var s = (256/res) | 0;
|
|
var s2 = s*s;
|
|
var colors = this._colors;
|
|
if(this.options.blendmode) {
|
|
ctx.globalCompositeOperation = this.options.blendmode;
|
|
}
|
|
var polygon_alpha = this._shader['polygon-opacity'] || function() { return 1.0; };
|
|
for(var i = 0; i < s2; ++i) {
|
|
var xy = i;
|
|
var value = accum[i];
|
|
if(value) {
|
|
x = (xy/s) | 0;
|
|
y = xy % s;
|
|
// by-pass the style generation for improving performance
|
|
color = this._shader['polygon-fill']({ value: value }, { zoom: 0 });
|
|
ctx.fillStyle = color;
|
|
//TODO: each function should have a default value for each
|
|
//property defined in the cartocss
|
|
alpha = polygon_alpha({ value: value }, { zoom: 0 });
|
|
if(alpha === null) {
|
|
alpha = 1.0;
|
|
}
|
|
ctx.globalAlpha = alpha;
|
|
ctx.fillRect(x * res, 256 - res - y * res, res, res);
|
|
}
|
|
}
|
|
prof.end();
|
|
},
|
|
|
|
//
|
|
// renders a tile in the canvas for key defined in
|
|
// the torque tile
|
|
//
|
|
renderTile: function(tile, key, callback) {
|
|
if(!this._canvas) return;
|
|
|
|
var res = this.options.resolution;
|
|
|
|
//var prof = Profiler.get('render').start();
|
|
var ctx = this._ctx;
|
|
var colors = this._colors;
|
|
var activepixels = tile.timeCount[key];
|
|
if(activepixels) {
|
|
var w = this._canvas.width;
|
|
var h = this._canvas.height;
|
|
//var imageData = ctx.getImageData(0, 0, w, h);
|
|
//var pixels = imageData.data;
|
|
var pixelIndex = tile.timeIndex[key];
|
|
for(var p = 0; p < activePixels; ++p) {
|
|
var posIdx = tile.renderDataPos[pixelIndex + p];
|
|
var c = tile.renderData[pixelIndex + p];
|
|
if(c) {
|
|
var color = colors[Math.min(c, colors.length - 1)];
|
|
var x = tile.x[posIdx];// + px;
|
|
var y = tile.y[posIdx]; //+ py;
|
|
|
|
ctx.fillStyle = color;
|
|
ctx.fillRect(x, y, res, res);
|
|
/*
|
|
|
|
for(var xx = 0; xx < res; ++xx) {
|
|
for(var yy = 0; yy < res; ++yy) {
|
|
var idx = 4*((x+xx) + w*(y + yy));
|
|
pixels[idx + 0] = color[0];
|
|
pixels[idx + 1] = color[1];
|
|
pixels[idx + 2] = color[2];
|
|
pixels[idx + 3] = color[3];
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
//ctx.putImageData(imageData, 0, 0);
|
|
}
|
|
//prof.end();
|
|
return callback && callback(null);
|
|
}
|
|
};
|
|
|
|
|
|
// exports public api
|
|
module.exports = RectanbleRenderer;
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"carto":undefined}],27:[function(require,module,exports){
|
|
/*
|
|
Based on simpleheat, a tiny JavaScript library for drawing heatmaps with Canvas,
|
|
by Vladimir Agafonkin
|
|
https://github.com/mourner/simpleheat
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
function torque_filters(canvas, options) {
|
|
// jshint newcap: false, validthis: true
|
|
if (!(this instanceof torque_filters)) { return new torque_filters(canvas, options); }
|
|
|
|
options = options || {};
|
|
|
|
this._canvas = canvas = typeof canvas === 'string' ? document.getElementById(canvas) : canvas;
|
|
|
|
this._ctx = canvas.getContext('2d');
|
|
this._width = canvas.width;
|
|
this._height = canvas.height;
|
|
|
|
this._max = 1;
|
|
this._data = [];
|
|
|
|
this.canvasClass = options.canvasClass;
|
|
}
|
|
|
|
torque_filters.prototype = {
|
|
|
|
defaultGradient: {
|
|
0.4: 'blue',
|
|
0.6: 'cyan',
|
|
0.7: 'lime',
|
|
0.8: 'yellow',
|
|
1.0: 'red'
|
|
},
|
|
|
|
gradient: function (grad) {
|
|
// create a 256x1 gradient that we'll use to turn a grayscale heatmap into a colored one
|
|
var canvas = this._createCanvas(),
|
|
ctx = canvas.getContext('2d'),
|
|
gradient = ctx.createLinearGradient(0, 0, 0, 256);
|
|
|
|
canvas.width = 1;
|
|
canvas.height = 256;
|
|
|
|
for (var i in grad) {
|
|
gradient.addColorStop(+i, grad[i]);
|
|
}
|
|
|
|
ctx.fillStyle = gradient;
|
|
ctx.fillRect(0, 0, 1, 256);
|
|
|
|
this._grad = ctx.getImageData(0, 0, 1, 256).data;
|
|
|
|
return this;
|
|
},
|
|
|
|
draw: function () {
|
|
if (!this._grad) {
|
|
this.gradient(this.defaultGradient);
|
|
}
|
|
|
|
var ctx = this._ctx;
|
|
var colored = ctx.getImageData(0, 0, this._canvas.width, this._canvas.height);
|
|
this._colorize(colored.data, this._grad);
|
|
ctx.putImageData(colored, 0, 0);
|
|
|
|
return this;
|
|
},
|
|
|
|
_colorize: function (pixels, gradient) {
|
|
for (var i = 3, len = pixels.length, j; i < len; i += 4) {
|
|
j = pixels[i] * 4; // get gradient color from opacity value
|
|
|
|
if (j) {
|
|
pixels[i - 3] = gradient[j];
|
|
pixels[i - 2] = gradient[j + 1];
|
|
pixels[i - 1] = gradient[j + 2];
|
|
}
|
|
}
|
|
},
|
|
|
|
_createCanvas: function() {
|
|
return this.canvasClass
|
|
? new this.canvasClass()
|
|
: document.createElement('canvas');
|
|
}
|
|
};
|
|
|
|
module.exports = torque_filters;
|
|
|
|
},{}],28:[function(require,module,exports){
|
|
(function (global){
|
|
var torque = require('./core');
|
|
|
|
var lastCall = null;
|
|
|
|
function jsonp(url, callback, options) {
|
|
options = options || {};
|
|
options.timeout = options.timeout === undefined ? 10000: options.timeout;
|
|
var head = document.getElementsByTagName('head')[0];
|
|
var script = document.createElement('script');
|
|
|
|
// function name
|
|
var fnName = options.callbackName || 'torque_' + Date.now();
|
|
|
|
if (torque.isFunction(fnName)) {
|
|
fnName = fnName();
|
|
}
|
|
|
|
function clean() {
|
|
head.removeChild(script);
|
|
clearTimeout(timeoutTimer);
|
|
delete window[fnName];
|
|
}
|
|
|
|
window[fnName] = function() {
|
|
clean();
|
|
callback.apply(window, arguments);
|
|
};
|
|
|
|
// timeout for errors
|
|
var timeoutTimer = setTimeout(function() {
|
|
clean();
|
|
callback.call(window, null);
|
|
}, options.timeout);
|
|
|
|
// setup url
|
|
url = url.replace('callback=\?', 'callback=' + fnName);
|
|
script.type = 'text/javascript';
|
|
script.src = url;
|
|
script.async = true;
|
|
// defer the loading because IE9 loads in the same frame the script
|
|
// so Loader._script is null
|
|
setTimeout(function() { head.appendChild(script); }, 0);
|
|
}
|
|
|
|
function get(url, callback, options) {
|
|
options = options || {
|
|
method: 'GET',
|
|
data: null,
|
|
responseType: 'text'
|
|
};
|
|
lastCall = { url: url, callback: callback };
|
|
var request = XMLHttpRequest;
|
|
// from d3.js
|
|
if (global.XDomainRequest
|
|
&& !("withCredentials" in request)
|
|
&& /^(http(s)?:)?\/\//.test(url)) request = XDomainRequest;
|
|
|
|
var req = new request();
|
|
req.open(options.method, url, true);
|
|
|
|
|
|
function respond() {
|
|
var status = req.status, result;
|
|
var r = options.responseType === 'arraybuffer' ? req.response: req.responseText;
|
|
if (!status && r || status >= 200 && status < 300 || status === 304) {
|
|
callback(req);
|
|
} else {
|
|
callback(null);
|
|
}
|
|
}
|
|
|
|
"onload" in req
|
|
? req.onload = req.onerror = respond
|
|
: req.onreadystatechange = function() { req.readyState > 3 && respond(); };
|
|
|
|
req.onprogress = function() {};
|
|
|
|
req.responseType = options.responseType; //'arraybuffer';
|
|
if (options.data) {
|
|
req.setRequestHeader("Content-type", "application/json");
|
|
//req.setRequestHeader("Content-type", "application/x-www-form-urlencoded")
|
|
req.setRequestHeader("Accept", "*");
|
|
}
|
|
req.send(options.data);
|
|
return req;
|
|
}
|
|
|
|
function post(url, data, callback) {
|
|
return get(url, callback, {
|
|
data: data,
|
|
method: "POST"
|
|
});
|
|
}
|
|
|
|
module.exports = {
|
|
get: get,
|
|
post: post,
|
|
jsonp: jsonp,
|
|
lastCall: function() { return lastCall; }
|
|
};
|
|
|
|
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
|
|
},{"./core":4}]},{},[10])(10)
|
|
}); |