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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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14
src/ol/renderer/dom/domtilelayerrenderer.js
View File

@@ -79,11 +79,15 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
}
var view2DState = frameState.view2DState;
var projection = view2DState.projection;
var tileLayer = this.getTileLayer();
var tileSource = tileLayer.getTileSource();
var tileSourceKey = goog.getUid(tileSource).toString();
var tileGrid = tileSource.getTileGrid();
if (goog.isNull(tileGrid)) {
tileGrid = ol.tilegrid.getForProjection(projection);
}
var z = tileGrid.getZForResolution(view2DState.resolution);
var tileResolution = tileGrid.getResolution(z);
var tileRange = tileGrid.getTileRangeForExtentAndResolution(
@@ -93,11 +97,11 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
var tilesToDrawByZ = {};
tilesToDrawByZ[z] = {};
var isLoaded = function(tile) {
var getTileIfLoaded = this.createGetTileIfLoadedFunction(function(tile) {
return !goog.isNull(tile) && tile.getState() == ol.TileState.LOADED;
};
}, tileSource, tileGrid, projection);
var findLoadedTiles = goog.bind(tileSource.findLoadedTiles, tileSource,
tilesToDrawByZ, isLoaded);
tilesToDrawByZ, getTileIfLoaded);
var allTilesLoaded = true;
var tile, tileCenter, tileCoord, tileState, x, y;
@@ -105,7 +109,7 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
tileCoord = new ol.TileCoord(z, x, y);
tile = tileSource.getTile(tileCoord);
tile = tileSource.getTile(tileCoord, tileGrid, projection);
if (goog.isNull(tile)) {
continue;
}
@@ -216,7 +220,7 @@ ol.renderer.dom.TileLayer.prototype.renderFrame =
}
this.updateUsedTiles(frameState.usedTiles, tileSource, z, tileRange);
tileSource.useLowResolutionTiles(z, frameState.extent);
tileSource.useLowResolutionTiles(z, frameState.extent, tileGrid);
this.scheduleExpireCache(frameState, tileSource);
};