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adding filters to be able to filter by multiple conditions

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This commit is contained in:
Stuart Lynn 2015-10-28 18:48:22 -04:00
parent 26d0d40e35
commit eaba6ee4dc
1 changed files with 23 additions and 12 deletions
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35
lib/torque/provider/tilejson.js
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@ -19,6 +19,7 @@
var tileJSON = function (options) {
this._ready = false;
this._tileQueue = [];
this._filters = {}
this.options = options;
this.options.coordinates_data_type = this.options.coordinates_data_type || Uint8Array;
@ -49,6 +50,13 @@
this.reload()
},
_setFilter:function(variable, start,end){
this._filters[variable] = {type:'range', start:start,end:end)
this.reload();
},
_removefilter:function(variable){
this._filters[variable] = undefined
},
/**
* return the torque tile encoded in an efficient javascript
* structure:
@ -60,16 +68,16 @@
*/
createProccessTileWorker:function(){
var workerFunction = "var proccessTile ="+ this.proccessTileSerial.toString()
var wrapper = "; self.onmessage = function(e){var data = JSON.parse(e.data); JSON.stringify(self.postMessage(proccessTile(data.rows,data.coord, data.zoom, data.options)))}"
var wrapper = "; self.onmessage = function(e){var data = JSON.parse(e.data); JSON.stringify(self.postMessage(proccessTile(data.response,data.coord, data.zoom, data.options)))}"
var script = workerFunction + wrapper;
var blob = new Blob([script], {type: "text/javascript"})
var worker = new Worker(window.URL.createObjectURL(blob))
return worker
},
proccessTile:function(rows,coord,zoom,callback){
proccessTile:function(response,coord,zoom,callback){
if(typeof(Worker) === "undefined"){
callback(this.proccessTileSerial(rows,coord,zoom, this.options))
callback(this.proccessTileSerial(response,coord,zoom, this.options))
}
else{
var worker = this.createProccessTileWorker()
@ -79,20 +87,22 @@
}
var workerSafeOptions= {
x : new this.options.coordinates_data_type(rows.length),
y : new this.options.coordinates_data_type(rows.length),
cumulative: this.options.cumulative,
valueDataType: this.options.valueDataType,
resolution: this.options.resolution,
}
worker.postMessage(JSON.stringify({rows: rows, coord: {x:coord.x,y:coord.y}, zoom:zoom, options: workerSafeOptions}))
worker.postMessage(JSON.stringify({response: response, coord: {x:coord.x,y:coord.y}, zoom:zoom, options: workerSafeOptions}))
}
},
proccessTileSerial: function(rows, coord, zoom,options) {
proccessTileSerial: function(response, coord, zoom,options) {
var r;
var x = options.x || new options.coordinates_data_type(rows.length);
var y = options.y || new options.coordinates_data_type(rows.length);
var data = JSON.parse(response)
var rows = data.pixels
var histograms = data.histograms
var x = options.x || new Uint8Array(rows.length);
var y = options.y || new Uint8Array(rows.length);
// count number of dates
var dates = 0;
@ -189,7 +199,8 @@
timeIndex: timeIndex,
renderDataPos: renderDataPos,
renderData: renderData,
maxDate: maxDateSlots
maxDate: maxDateSlots,
histogram: histograms
};
},
@ -300,8 +311,8 @@
}
torque.net.get( url , function (data) {
if (data && data.responseText) {
var rows = JSON.parse(data.responseText);
self.proccessTile(rows.pixels, coord, zoom,callback.bind(self));
self.proccessTile(data.responseText, coord, zoom,callback.bind(self));
} else {
callback(null);
}