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Re-use ol.TileCoord objects

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This commit is contained in:
Tom Payne
2013-04-09 15:28:49 +02:00
parent 5a4033db7a
commit 5bd67e1325
3 changed files with 16 additions and 8 deletions
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7
src/ol/source/wmtssource.js
View File

@@ -113,6 +113,7 @@ ol.source.WMTS = function(options) {
}));
}
var tmpTileCoord = new ol.TileCoord(0, 0, 0);
tileUrlFunction = ol.TileUrlFunction.withTileCoordTransform(
function(tileCoord, projection) {
var tileGrid = this.getTileGrid();
@@ -134,8 +135,10 @@ ol.source.WMTS = function(options) {
(extent.maxX - extent.minX) /
(tileExtent.maxX - tileExtent.minX));
x = goog.math.modulo(x, numCols);
tileExtent = tileGrid.getTileCoordExtent(
new ol.TileCoord(tileCoord.z, x, tileCoord.y));
tmpTileCoord.z = tileCoord.z;
tmpTileCoord.x = x;
tmpTileCoord.y = tileCoord.y;
tileExtent = tileGrid.getTileCoordExtent(tmpTileCoord);
}
if (!tileExtent.intersects(extent)) {
return null;

7
src/ol/source/xyzsource.js
View File

@@ -61,6 +61,7 @@ ol.source.XYZ = function(options) {
var extent = options.extent;
if (goog.isDefAndNotNull(extent)) {
var tmpTileCoord = new ol.TileCoord(0, 0, 0);
tileUrlFunction = ol.TileUrlFunction.withTileCoordTransform(
function(tileCoord) {
if (options.maxZoom < tileCoord.z) {
@@ -72,8 +73,10 @@ ol.source.XYZ = function(options) {
return null;
}
var x = goog.math.modulo(tileCoord.x, n);
var tileExtent = tileGrid.getTileCoordExtent(
new ol.TileCoord(tileCoord.z, x, tileCoord.y));
tmpTileCoord.z = tileCoord.z;
tmpTileCoord.x = x;
tmpTileCoord.y = tileCoord.y;
var tileExtent = tileGrid.getTileCoordExtent(tmpTileCoord);
// FIXME we shouldn't need a typecast here
if (!tileExtent.intersects(/** @type {ol.Extent} */ (extent))) {
return null;

10
src/ol/tilegrid/tilegrid.js
View File

@@ -205,11 +205,13 @@ ol.tilegrid.TileGrid.prototype.getTileRangeExtent = function(z, tileRange) {
*/
ol.tilegrid.TileGrid.prototype.getTileRangeForExtentAndResolution = function(
extent, resolution) {
var min = this.getTileCoordForXYAndResolution_(
var tileCoord = this.getTileCoordForXYAndResolution_(
extent.minX, extent.minY, resolution, false);
var max = this.getTileCoordForXYAndResolution_(
extent.maxX, extent.maxY, resolution, true);
return new ol.TileRange(min.x, min.y, max.x, max.y);
var minX = tileCoord.x;
var minY = tileCoord.y;
tileCoord = this.getTileCoordForXYAndResolution_(
extent.maxX, extent.maxY, resolution, true, tileCoord);
return new ol.TileRange(minX, minY, tileCoord.x, tileCoord.y);
};