diff --git a/examples/canvas-tiles.html b/examples/canvas-tiles.html
index b713e311a2..beddc26767 100644
--- a/examples/canvas-tiles.html
+++ b/examples/canvas-tiles.html
@@ -3,8 +3,7 @@ template: example.html
title: Canvas tiles example
shortdesc: Renders tiles with coordinates for debugging.
docs: >
-
The black grid tiles are generated on the client with an HTML5 canvas. Note that the tile coordinates are ol3 normalized tile coordinates (origin bottom left), not
- OSM tile coordinates (origin top left).
+ The black grid tiles are generated on the client with an HTML5 canvas. In this example, the `ol.source.TileDebug` source uses the tile grid of the `ol.source.OSM` source, so the displayed tile coordinates are the same as those for OSM tile requests.
tags: "layers, openstreetmap, canvas"
---
diff --git a/examples/canvas-tiles.js b/examples/canvas-tiles.js
index a3bf7004bb..66bb08f34c 100644
--- a/examples/canvas-tiles.js
+++ b/examples/canvas-tiles.js
@@ -7,15 +7,16 @@ goog.require('ol.source.OSM');
goog.require('ol.source.TileDebug');
+var osmSource = new ol.source.OSM();
var map = new ol.Map({
layers: [
new ol.layer.Tile({
- source: new ol.source.OSM()
+ source: osmSource
}),
new ol.layer.Tile({
source: new ol.source.TileDebug({
projection: 'EPSG:3857',
- tileGrid: ol.tilegrid.createXYZ({maxZoom: 22})
+ tileGrid: osmSource.getTileGrid()
})
})
],
diff --git a/src/ol/source/tiledebugsource.js b/src/ol/source/tiledebugsource.js
index b035f37efd..59a1540f00 100644
--- a/src/ol/source/tiledebugsource.js
+++ b/src/ol/source/tiledebugsource.js
@@ -7,7 +7,6 @@ goog.require('ol.dom');
goog.require('ol.size');
goog.require('ol.source.Tile');
goog.require('ol.tilecoord');
-goog.require('ol.tilegrid.TileGrid');
@@ -15,10 +14,11 @@ goog.require('ol.tilegrid.TileGrid');
* @constructor
* @extends {ol.Tile}
* @param {ol.TileCoord} tileCoord Tile coordinate.
- * @param {ol.tilegrid.TileGrid} tileGrid Tile grid.
+ * @param {ol.Size} tileSize Tile size.
+ * @param {string} text Text.
* @private
*/
-ol.DebugTile_ = function(tileCoord, tileGrid) {
+ol.DebugTile_ = function(tileCoord, tileSize, text) {
goog.base(this, tileCoord, ol.TileState.LOADED);
@@ -26,8 +26,13 @@ ol.DebugTile_ = function(tileCoord, tileGrid) {
* @private
* @type {ol.Size}
*/
- this.tileSize_ = ol.size.toSize(
- tileGrid.getTileSize(tileCoord[0]));
+ this.tileSize_ = tileSize;
+
+ /**
+ * @private
+ * @type {string}
+ */
+ this.text_ = text;
/**
* @private
@@ -58,8 +63,7 @@ ol.DebugTile_.prototype.getImage = function(opt_context) {
context.textAlign = 'center';
context.textBaseline = 'middle';
context.font = '24px sans-serif';
- context.fillText(ol.tilecoord.toString(this.tileCoord),
- tileSize[0] / 2, tileSize[1] / 2);
+ context.fillText(this.text_, tileSize[0] / 2, tileSize[1] / 2);
this.canvasByContext_[key] = context.canvas;
return context.canvas;
@@ -102,7 +106,11 @@ ol.source.TileDebug.prototype.getTile = function(z, x, y) {
if (this.tileCache.containsKey(tileCoordKey)) {
return /** @type {!ol.DebugTile_} */ (this.tileCache.get(tileCoordKey));
} else {
- var tile = new ol.DebugTile_([z, x, y], this.tileGrid);
+ var tileSize = ol.size.toSize(this.tileGrid.getTileSize(z));
+ var tileCoord = [z, x, y];
+ var text = ol.tilecoord.toString(
+ this.getTileCoordForTileUrlFunction(tileCoord));
+ var tile = new ol.DebugTile_(tileCoord, tileSize, text);
this.tileCache.set(tileCoordKey, tile);
return tile;
}