Fix #263 Implementation of torque layer for OpenLayers. Must be using OpenLayers 3.17 or later.
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1
Makefile
1
Makefile
@ -5,6 +5,7 @@ BROWSERIFY=./node_modules/browserify/bin/cmd.js
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JS_CLIENT_FILES= lib/torque/*.js \
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lib/torque/renderer/*.js \
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lib/torque/gmaps/*.js \
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lib/torque/ol/*.js \
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lib/torque/leaflet/leaflet_tileloader_mixin.js \
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lib/torque/leaflet/canvas_layer.js \
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lib/torque/leaflet/torque.js
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73
examples/navy_ol.html
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73
examples/navy_ol.html
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@ -0,0 +1,73 @@
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<!DOCTYPE html>
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<html>
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<head lang="en">
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<meta charset="UTF-8">
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<title>CartoDb Torque Layer Example</title>
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<link rel="stylesheet" href="http://openlayers.org/en/v3.17.1/css/ol.css" type="text/css">
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<script src="http://openlayers.org/en/v3.17.1/build/ol.js"></script>
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<style>
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#map, html, body {
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width: 100%; height: 100%; padding: 0; margin: 0;
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}
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</style>
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</head>
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<body>
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<div id="map"></div>
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<script src="../dist/torque.full.uncompressed.js"></script>
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<script>
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// define the torque layer style using cartocss
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var CARTOCSS = [
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'Map {',
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'-torque-time-attribute: "date";',
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'-torque-aggregation-function: "count(cartodb_id)";',
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'-torque-frame-count: 760;',
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'-torque-animation-duration: 15;',
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'-torque-resolution: 2',
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'}',
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'#layer {',
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' marker-width: 3;',
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' marker-fill-opacity: 0.8;',
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' marker-fill: #FEE391; ',
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' comp-op: "lighten";',
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' [value > 2] { marker-fill: #FEC44F; }',
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' [value > 3] { marker-fill: #FE9929; }',
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' [value > 4] { marker-fill: #EC7014; }',
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' [value > 5] { marker-fill: #CC4C02; }',
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' [value > 6] { marker-fill: #993404; }',
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' [value > 7] { marker-fill: #662506; }',
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' [frame-offset = 1] { marker-width: 10; marker-fill-opacity: 0.05;}',
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' [frame-offset = 2] { marker-width: 15; marker-fill-opacity: 0.02;}',
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'}'
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].join('\n');
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var map = new ol.Map({
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target: "map",
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view: new ol.View({
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center: [40, 0],
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zoom: 3
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}),
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layers: [
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new ol.layer.Tile({
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source: new ol.source.XYZ({ url: 'http://api.cartocdn.com/base-dark/{z}/{x}/{y}.png'})
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})
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],
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interactions: ol.interaction.defaults({
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dragPan: false
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}).extend([
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new ol.interaction.DragPan({kinetic: false})
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])
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});
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var torqueLayer = new ol.TorqueLayer({
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user : 'viz2',
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table : 'ow',
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cartocss: CARTOCSS
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});
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torqueLayer.onAdd(map);
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torqueLayer.play()
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</script>
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</body>
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</html>
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@ -15,3 +15,5 @@ var gmaps = require('./gmaps');
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module.exports.GMapsTileLoader = gmaps.GMapsTileLoader;
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module.exports.GMapsTorqueLayer = gmaps.GMapsTorqueLayer;
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module.exports.GMapsTiledTorqueLayer = gmaps.GMapsTiledTorqueLayer;
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require('./ol');
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@ -128,7 +128,7 @@ L.CanvasLayer = L.Class.extend({
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var origin = {
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x: newCenter.x - oldCenter.x + pos.x,
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y: newCenter.y - oldCenter.y + pos.y,
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y: newCenter.y - oldCenter.y + pos.y
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};
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var bg = back;
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@ -138,7 +138,7 @@ L.TorqueLayer = L.CanvasLayer.extend({
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onAdd: function (map) {
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map.on({
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'zoomend': this._clearCaches,
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'zoomstart': this._pauseOnZoom,
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'zoomstart': this._pauseOnZoom
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}, this);
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map.on({
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@ -152,7 +152,7 @@ L.TorqueLayer = L.CanvasLayer.extend({
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this._removeTileLoader();
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map.off({
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'zoomend': this._clearCaches,
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'zoomstart': this._pauseOnZoom,
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'zoomstart': this._pauseOnZoom
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}, this);
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map.off({
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'zoomend': this._resumeOnZoom
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131
lib/torque/ol/canvas_layer.js
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131
lib/torque/ol/canvas_layer.js
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require('./ol_tileloader_mixin');
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ol.CanvasLayer = function(options) {
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this.root_ = document.createElement('div');
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this.root_.setAttribute('class', 'ol-heatmap-layer');
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this.options = {
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subdomains: 'abc',
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errorTileUrl: '',
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attribution: '',
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opacity: 1,
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tileLoader: false, // installs tile loading events
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tileSize: 256
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};
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options = options || {};
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torque.extend(this.options, options);
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ol.TileLoader.call(this, this.options.tileSize, this.options.maxZoom);
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this.render = this.render.bind(this);
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this._canvas = this._createCanvas();
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this.root_.appendChild(this._canvas);
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this._ctx = this._canvas.getContext('2d');
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this.currentAnimationFrame = -1;
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this.requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
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window.webkitRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) {
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return window.setTimeout(callback, 1000 / 60);
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};
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this.cancelAnimationFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame ||
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window.webkitCancelAnimationFrame || window.msCancelAnimationFrame || function (id) {
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clearTimeout(id);
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};
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if(options.map){
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this.setMap(options.map);
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}
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};
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ol.inherits(ol.CanvasLayer, ol.TileLoader);
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ol.CanvasLayer.prototype.setMap = function(map){
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if(this._map){
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//remove
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this._map.unByKey(this.pointdragKey_);
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this._map.unByKey(this.sizeChangedKey_);
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this._map.unByKey(this.moveendKey_);
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this._map.getView().unByKey(this.centerChanged_);
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}
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this._map = map;
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if(map){
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var overlayContainer = this._map.getViewport().getElementsByClassName("ol-overlaycontainer")[0];
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overlayContainer.appendChild(this.root_);
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this.pointdragKey_ = map.on('pointerdrag', this._render, this);
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this.moveendKey_ = map.on("moveend", this._render, this);
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this.centerChanged_ = map.getView().on("change:center", this._render, this);
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this.sizeChangedKey_ = map.on('change:size', this._reset, this);
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if(this.options.tileLoader) {
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ol.TileLoader.prototype._initTileLoader.call(this, map);
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}
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this._reset();
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}
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};
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ol.CanvasLayer.prototype._createCanvas = function() {
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var canvas;
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canvas = document.createElement('canvas');
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canvas.style.position = 'absolute';
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canvas.style.top = 0;
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canvas.style.left = 0;
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canvas.style.pointerEvents = "none";
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canvas.style.zIndex = this.options.zIndex || 0;
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return canvas;
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};
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ol.CanvasLayer.prototype._reset = function () {
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this._resize();
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};
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ol.CanvasLayer.prototype._resize = function() {
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var size = this._map.getSize();
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var width = size[0];
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var height = size[1];
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var oldWidth = this._canvas.width;
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var oldHeight = this._canvas.height;
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// resizing may allocate a new back buffer, so do so conservatively
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if (oldWidth !== width || oldHeight !== height) {
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this._canvas.width = width;
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this._canvas.height = height;
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this._canvas.style.width = width + 'px';
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this._canvas.style.height = height + 'px';
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this.root_.style.width = width + 'px';
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this.root_.style.height = height + 'px';
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this._render();
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}
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};
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ol.CanvasLayer.prototype._render = function() {
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if (this.currentAnimationFrame >= 0) {
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this.cancelAnimationFrame.call(window, this.currentAnimationFrame);
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}
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this.currentAnimationFrame = this.requestAnimationFrame.call(window, this.render);
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};
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ol.CanvasLayer.prototype.getCanvas = function() {
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return this._canvas;
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};
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ol.CanvasLayer.prototype.getAttribution = function() {
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return this.options.attribution;
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};
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ol.CanvasLayer.prototype.draw = function() {
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return this._render();
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};
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ol.CanvasLayer.prototype.redraw = function(direct) {
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if (direct) {
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this.render();
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} else {
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this._render();
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}
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};
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module.exports = ol.CanvasLayer;
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3
lib/torque/ol/index.js
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3
lib/torque/ol/index.js
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if (typeof ol !== 'undefined') {
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require('./torque');
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}
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169
lib/torque/ol/ol_tileloader_mixin.js
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169
lib/torque/ol/ol_tileloader_mixin.js
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ol.TileLoader = function(tileSize, maxZoom){
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this._tileSize = tileSize;
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this._tiles = {};
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this._tilesLoading = {};
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this._tilesToLoad = 0;
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this._updateTiles = this._updateTiles.bind(this);
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this._tileGrid = ol.tilegrid.createXYZ({
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maxZoom: maxZoom,
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tileSize: tileSize
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});
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};
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ol.TileLoader.prototype._initTileLoader = function(map) {
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this._map = map;
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this._view = map.getView();
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this._centerChangedId = this._view.on("change:center", function(e){
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this._updateTiles();
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}, this);
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this._postcomposeKey = undefined;
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this._resolutionChangedId = this._view.on("change:resolution", function(evt){
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this._currentResolution = this._view.getResolution();
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if(this._postcomposeKey) return;
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this.fire("mapZoomStart");
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this._postcomposeKey = this._map.on("postcompose", function(evt) {
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if(evt.frameState.viewState.resolution === this._currentResolution){
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this._updateTiles();
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this._map.unByKey(this._postcomposeKey);
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this._postcomposeKey = undefined;
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this.fire("mapZoomEnd");
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}
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}, this);
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}, this);
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this._updateTiles();
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};
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ol.TileLoader.prototype._removeTileLoader = function() {
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this._view.unByKey(this._centerChangedId);
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this._view.unByKey(this._resolutionChangedId );
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this._removeTiles();
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};
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ol.TileLoader.prototype._removeTiles = function () {
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for (var key in this._tiles) {
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this._removeTile(key);
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}
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};
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ol.TileLoader.prototype._reloadTiles = function() {
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this._removeTiles();
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this._updateTiles();
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};
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ol.TileLoader.prototype._updateTiles = function () {
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if (!this._map) { return; }
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var zoom = this._tileGrid.getZForResolution(this._view.getResolution());
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var extent = this._view.calculateExtent(this._map.getSize());
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var tileRange = this._requestTilesForExtentAndZ(extent, zoom);
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this._removeOtherTiles(tileRange);
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};
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ol.TileLoader.prototype._removeOtherTiles = function(tileRange) {
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var kArr, x, y, z, key;
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var zoom = this._tileGrid.getZForResolution(this._view.getResolution());
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for (key in this._tiles) {
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if (this._tiles.hasOwnProperty(key)) {
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kArr = key.split(':');
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x = parseInt(kArr[0], 10);
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y = parseInt(kArr[1], 10);
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z = parseInt(kArr[2], 10);
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// remove tile if it's out of bounds
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if (z !== zoom || x < tileRange.minX || x > tileRange.maxX || ((-y-1) < tileRange.minY) || (-y-1) > tileRange.maxY) {
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this._removeTile(key);
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}
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}
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}
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};
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ol.TileLoader.prototype._removeTile = function (key) {
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this.fire('tileRemoved', this._tiles[key]);
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delete this._tiles[key];
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delete this._tilesLoading[key];
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};
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ol.TileLoader.prototype._tileKey = function(tilePoint) {
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return tilePoint.x + ':' + tilePoint.y + ':' + tilePoint.zoom;
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};
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ol.TileLoader.prototype._tileShouldBeLoaded = function (tilePoint) {
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var k = this._tileKey(tilePoint);
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return !(k in this._tiles) && !(k in this._tilesLoading);
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};
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ol.TileLoader.prototype._removeFromTilesLoading = function(tilePoint){
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this._tilesToLoad--;
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var k = this._tileKey(tilePoint);
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delete this._tilesLoading[k];
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if(this._tilesToLoad === 0) {
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this.fire("tilesLoaded");
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}
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};
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ol.TileLoader.prototype._tileLoaded = function(tilePoint, tileData) {
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var k = this._tileKey(tilePoint);
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this._tiles[k] = tileData;
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};
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ol.TileLoader.prototype.getTilePos = function (tilePoint) {
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var zoom = this._tileGrid.getZForResolution(this._view.getResolution());
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var extent = this._tileGrid.getTileCoordExtent([zoom, tilePoint.x, -tilePoint.y-1]);
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var topLeft = this._map.getPixelFromCoordinate([extent[0], extent[3]]);
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return {
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x: topLeft[0],
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y: topLeft[1]
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};
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};
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ol.TileLoader.prototype._requestTilesForExtentAndZ = function (extent, zoom) {
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var queue = [];
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var tileCoords = [];
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this._tileGrid.forEachTileCoord(extent, zoom, function(coord){
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tileCoords.push(coord);
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var point = {
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x: coord[1],
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y: -coord[2] - 1,
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zoom: coord[0]
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};
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if (this._tileShouldBeLoaded(point)) {
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queue.push(point);
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}
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}.bind(this));
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var tilesToLoad = queue.length;
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if (tilesToLoad > 0) {
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this._tilesToLoad += tilesToLoad;
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for (var i = 0; i < tilesToLoad; i++) {
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var t = queue[i];
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var k = this._tileKey(t);
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this._tilesLoading[k] = t;
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// events
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this.fire('tileAdded', t);
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}
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this.fire("tilesLoading");
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}
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var tileRange = {
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minX : tileCoords[0][1],
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maxX : tileCoords [tileCoords.length - 1][1],
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minY : tileCoords[0][2],
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maxY : tileCoords [tileCoords.length - 1] [2]
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};
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return tileRange;
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};
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module.exports = ol.TileLoader;
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443
lib/torque/ol/torque.js
Normal file
443
lib/torque/ol/torque.js
Normal file
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var carto = global.carto || require('carto');
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var torque = require('../');
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require('./canvas_layer');
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ol.TorqueLayer = function(options){
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var self = this;
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if (!torque.isBrowserSupported()) {
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throw new Error("browser is not supported by torque");
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}
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options.tileLoader = true;
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this.keys = [0];
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Object.defineProperty(this, 'key', {
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get: function() {
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return this.getKey();
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}
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});
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this.prevRenderedKey = 0;
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if (options.cartocss) {
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torque.extend(options, torque.common.TorqueLayer.optionsFromCartoCSS(options.cartocss));
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}
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options.resolution = options.resolution || 2;
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options.steps = options.steps || 100;
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options.visible = options.visible === undefined ? true: options.visible;
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this.hidden = !options.visible;
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this.animator = new torque.Animator(function(time) {
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var k = time | 0;
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if(self.getKey() !== k) {
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self.setKey(k, { direct: true });
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}
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}, torque.extend(torque.clone(options), {
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onPause: function() {
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self.fire('pause');
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},
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onStop: function() {
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self.fire('stop');
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},
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onStart: function() {
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self.fire('play');
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},
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onStepsRange: function() {
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self.fire('change:stepsRange', self.animator.stepsRange());
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}
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}));
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this.play = this.animator.start.bind(this.animator);
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this.stop = this.animator.stop.bind(this.animator);
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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);
|
||||
|
||||
|
||||
ol.CanvasLayer.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.setKeys(self.getKeys());
|
||||
};
|
||||
|
||||
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) {
|
||||
self._removeFromTilesLoading(t);
|
||||
if (t.zoom !== self._tileGrid.getZForResolution(self._view.getResolution())) return;
|
||||
self._tileLoaded(t, tileData);
|
||||
self.fire('tileLoaded');
|
||||
if (tileData) {
|
||||
self.redraw();
|
||||
}
|
||||
});
|
||||
}, this);
|
||||
|
||||
this.on('mapZoomStart', function(){
|
||||
this.getCanvas().style.display = "none";
|
||||
this._pauseOnZoom();
|
||||
}, this);
|
||||
|
||||
this.on('mapZoomEnd', function() {
|
||||
this.getCanvas().style.display = "block";
|
||||
this._resumeOnZoom();
|
||||
}, this);
|
||||
};
|
||||
|
||||
ol.TorqueLayer.prototype = torque.extend({},
|
||||
ol.CanvasLayer.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
|
||||
},
|
||||
|
||||
onAdd: function(map){
|
||||
ol.CanvasLayer.prototype.setMap.call(this, map);
|
||||
},
|
||||
|
||||
onRemove: function(map) {
|
||||
this.fire('remove');
|
||||
this._removeTileLoader();
|
||||
},
|
||||
|
||||
_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');
|
||||
|
||||
// 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.keys);
|
||||
}
|
||||
}
|
||||
this.renderer.applyFilters();
|
||||
},
|
||||
|
||||
/**
|
||||
* 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.setKeys([key], options);
|
||||
},
|
||||
|
||||
/**
|
||||
* returns the array of keys being rendered
|
||||
*/
|
||||
getKeys: function() {
|
||||
return this.keys;
|
||||
},
|
||||
|
||||
setKeys: function(keys, options) {
|
||||
this.keys = keys;
|
||||
this.animator.step(this.getKey());
|
||||
this.redraw(options && options.direct);
|
||||
this.fire('change:time', {
|
||||
time: this.getTime(),
|
||||
step: this.getKey(),
|
||||
start: this.getKey(),
|
||||
end: this.getLastKey()
|
||||
});
|
||||
},
|
||||
|
||||
getKey: function() {
|
||||
return this.keys[0];
|
||||
},
|
||||
|
||||
getLastKey: function() {
|
||||
return this.keys[this.keys.length - 1];
|
||||
},
|
||||
|
||||
/**
|
||||
* 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);
|
||||
},
|
||||
|
||||
renderRange: function(start, end) {
|
||||
this.pause();
|
||||
var keys = [];
|
||||
for (var i = start; i <= end; i++) {
|
||||
keys.push(i);
|
||||
}
|
||||
this.setKeys(keys);
|
||||
},
|
||||
|
||||
resetRenderRange: function() {
|
||||
this.stop();
|
||||
this.play();
|
||||
},
|
||||
|
||||
/**
|
||||
* 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.getKey();
|
||||
},
|
||||
|
||||
/**
|
||||
* returns the animation time defined by the data
|
||||
* in the defined column. Date object
|
||||
*/
|
||||
getTime: function() {
|
||||
return this.stepToTime(this.getKey());
|
||||
},
|
||||
|
||||
/**
|
||||
* 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.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.getKey(): 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.getKey(): 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;
|
||||
},
|
||||
|
||||
/** return the number of points for a step */
|
||||
pointCount: function(step) {
|
||||
var t, tile;
|
||||
step = step === undefined ? this.key: step;
|
||||
var c = 0;
|
||||
for(t in this._tiles) {
|
||||
tile = this._tiles[t];
|
||||
if (tile) {
|
||||
c += tile.timeCount[step];
|
||||
}
|
||||
}
|
||||
return c;
|
||||
},
|
||||
|
||||
invalidate: function() {
|
||||
this.provider.reload();
|
||||
},
|
||||
|
||||
setStepsRange: function(start, end) {
|
||||
this.animator.stepsRange(start, end);
|
||||
},
|
||||
|
||||
removeStepsRange: function() {
|
||||
this.animator.removeCustomStepsRange();
|
||||
},
|
||||
|
||||
getStepsRange: function() {
|
||||
return this.animator.stepsRange();
|
||||
}
|
||||
});
|
||||
|
||||
|
||||
module.exports = ol.TorqueLayer;
|
Loading…
Reference in New Issue
Block a user