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refactored getTilePolygons to TilesCore

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This commit is contained in:
Andy Gup 2014-08-15 13:31:51 -06:00
parent 40528f9b80
commit 69ecbc1ce6
6 changed files with 101 additions and 62 deletions
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24
lib/tiles/OfflineTilesEnablerLayer.js
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@ -355,29 +355,7 @@ define([
*/
getTilePolygons : function(callback) // callback(Polygon polygon) or callback(null, error)
{
var store = this.offline.store;
var tilingScheme = new TilingScheme(this);
store.getAllTiles(function(url,img,err)
{
if(url && url.indexOf(layer.url) == 0)
{
var components = url.split("/");
var level = parseInt(components[ components.length - 3],10);
var col = parseInt(components[ components.length - 2],10);
var row = parseInt(components[ components.length - 1],10);
var cellId = [row,col];
var polygon = tilingScheme.getCellPolygonFromCellId(cellId, level);
//if( level == 15)
callback(polygon);
}
else
{
if(!url)
{
callback(null,err);
}
}
});
this._tilesCore._getTilePolygons(this.offline.store,this.url,this,callback);
},
/**

53
lib/tiles/TilesCore.js
View File

@ -10,8 +10,9 @@ define([
"esri/layers/TileInfo",
"esri/layers/LOD",
"tiles/base64utils",
"tiles/tilingScheme"
],
function(query,Point,Extent,SpatialReference,TileInfo,LOD,Base64Utils){
function(query,Point,Extent,SpatialReference,TileInfo,LOD,Base64Utils,TilingScheme){
"use strict";
var TilesCore = function(){
@ -46,7 +47,53 @@ define([
callback(false, e);
};
req.send(null);
}
};
/**
* Gets polygons representing all cached cell ids within a particular
* zoom level and bounded by an extent.
* @param store local IndexedDB
* @param layerUrl the URL of tile layer
* @param context a reference to the layer
* @param callback callback(polygon, error)
*/
this._getTilePolygons = function(store,layerUrl,context,callback) // callback(Polygon polygon) or callback(null, error)
{
var components, level, col, row, cellId, polygon;
var tilingScheme = new TilingScheme(context);
store.getAllTiles(function(url,img,err)
{
if(url && url.indexOf(layerUrl) == 0)
{
if(url.indexOf("_alllayers") != -1)
{
// V101/LAYERS/_alllayers/L01/R0C18C0B10
components = url.split("/");
level = parseInt(components[ components.length - 2].slice(1),10);
col = parseInt( components[ components.length -1].substring(1,5), 16);
row = parseInt( components[ components.length -1].substring(6,10), 16);
}
else
{
components = url.split("/");
level = parseInt(components[ components.length - 3],10);
col = parseInt(components[ components.length - 2],10);
row = parseInt(components[ components.length - 1],10);
}
cellId = [row,col];
polygon = tilingScheme.getCellPolygonFromCellId(cellId, level);
callback(polygon);
}
else
{
if(!url)
{
callback(null,err);
}
}
});
};
this._parseGetTileInfo = function(data,callback){
@ -94,7 +141,7 @@ define([
callback({initExtent:initialExtent,fullExtent:fullExtent,tileInfo:tileInfo,resultObj:resultObj});
}
}
};
return TilesCore;
}

2
lib/tiles/TilesStore.js
View File

@ -154,7 +154,7 @@ define([],function()
/**
* Retrieve all tiles from indexeddb
* @param callback callbakck(url, img, err)
* @param callback callback(url, img, err)
*/
this.getAllTiles = function(callback)
{

36
lib/tiles/offlineTilesEnabler.js
View File

@ -257,41 +257,7 @@ define([
*/
layer.getTilePolygons = function(callback) // callback(Polygon polygon) or callback(null, error)
{
var components, level, col, row, cellId, polygon;
var store = this.offline.store;
var tilingScheme = new TilingScheme(this);
store.getAllTiles(function(url,img,err)
{
if(url && url.indexOf(layer.url) == 0)
{
if(url.indexOf("_alllayers") != -1)
{
// V101/LAYERS/_alllayers/L01/R0C18C0B10
components = url.split("/");
level = parseInt(components[ components.length - 2].slice(1),10);
col = parseInt( components[ components.length -1].substring(1,5), 16);
row = parseInt( components[ components.length -1].substring(6,10), 16);
}
else
{
components = url.split("/");
level = parseInt(components[ components.length - 3],10);
col = parseInt(components[ components.length - 2],10);
row = parseInt(components[ components.length - 1],10);
}
cellId = [row,col];
polygon = tilingScheme.getCellPolygonFromCellId(cellId, level);
callback(polygon);
}
else
{
if(!url)
{
callback(null,err);
}
}
});
layer._tilesCore._getTilePolygons(this.offline.store,layer.url,this,callback);
};
/**

24
test/spec/offlineTilesEnablerLayerSpec.js
View File

@ -242,4 +242,28 @@ describe("offline enabler custom layer library", function()
})
});
async.it("get all tile polygons within extent",function(done){
require(["dojo/Deferred","dojo/promise/all",],function(Deferred,all){
var promises = [];
g_basemapLayer.getTilePolygons(function(result,err){
var deferred = new Deferred();
if(result && result.type){
console.log("Tile polygon: " + result);
expect(result.type).toEqual("polygon");
}
deferred.resolve(result);
promises.push(deferred);
})
all(promises).then( function(results)
{
done();
});
})
});
});

24
test/spec/offlineTilesEnablerSpec.js
View File

@ -211,4 +211,28 @@ describe("offline enabler library", function()
})
});
async.it("get all tile polygons within extent",function(done){
require(["dojo/Deferred","dojo/promise/all",],function(Deferred,all){
var promises = [];
g_basemapLayer.getTilePolygons(function(result,err){
var deferred = new Deferred();
if(result && result.type){
console.log("Tile polygon: " + result);
expect(result.type).toEqual("polygon");
}
deferred.resolve(result);
promises.push(deferred);
})
all(promises).then( function(results)
{
done();
});
})
});
});