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Support tile sources without configured projection

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This change adds a lot of flexibility to working with tile
layers: Sources where the server projection or tile grid do not
matter can now be constructed without specifying a projection or
tile grid.

The tileUrlFunction/imageUrlFunction now also creates updated
URLs when the params of the layer change, so things like
mergeNewParams in ol2 will be possible.

A nice side effect of this whole change is that there is no more
duplicated code between tiled and single image WMS layers.

While I was at it, I also fixed a WMS 1.1.1 axis order issue
and incorrect STYLES params (STYLES=& instead of STYLES&).
This commit is contained in:
ahocevar
2013-03-05 00:46:58 +01:00
parent cad215e0cc
commit 586f393492
24 changed files with 320 additions and 206 deletions
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17
src/ol/source/imagetilesource.js
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@@ -7,7 +7,6 @@ goog.require('ol.ImageTile');
goog.require('ol.Projection');
goog.require('ol.Tile');
goog.require('ol.TileCache');
goog.require('ol.TileCoord');
goog.require('ol.TileUrlFunction');
goog.require('ol.TileUrlFunctionType');
goog.require('ol.source.TileSource');
@@ -84,12 +83,15 @@ ol.source.ImageTileSource.prototype.expireCache = function(usedTiles) {
/**
* @inheritDoc
*/
ol.source.ImageTileSource.prototype.getTile = function(tileCoord) {
ol.source.ImageTileSource.prototype.getTile =
function(tileCoord, tileGrid, projection) {
var key = tileCoord.toString();
if (this.tileCache_.containsKey(key)) {
return /** @type {ol.Tile} */ (this.tileCache_.get(key));
} else {
var tileUrl = this.getTileCoordUrl(tileCoord);
goog.asserts.assert(tileGrid);
goog.asserts.assert(projection);
var tileUrl = this.tileUrlFunction(tileCoord, tileGrid, projection);
var tile;
if (goog.isDef(tileUrl)) {
tile = new ol.ImageTile(tileCoord, tileUrl, this.crossOrigin_);
@@ -102,15 +104,6 @@ ol.source.ImageTileSource.prototype.getTile = function(tileCoord) {
};
/**
* @param {ol.TileCoord} tileCoord Tile coordinate.
* @return {string|undefined} Tile URL.
*/
ol.source.ImageTileSource.prototype.getTileCoordUrl = function(tileCoord) {
return this.tileUrlFunction(tileCoord);
};
/**
* @inheritDoc
*/