Remove the tilePixelRatio option from ol.source.VectorTile

src/ol/renderer/canvas/vectortilelayer.js

@@ -325,11 +325,8 @@ ol.renderer.canvas.VectorTileLayer.prototype.getReplayTransform_ = function(tile
  * @return {number} The tile's pixel ratio.
  */
 ol.renderer.canvas.VectorTileLayer.prototype.getTilePixelRatio_ = function(source, tile) {
-  var extent = tile.getExtent();
-  return extent ?
-    ol.extent.getWidth(extent) /
-        ol.size.toSize(source.getTileGrid().getTileSize(tile.tileCoord[0]))[0] :
-    source.getTilePixelRatio();
+  return ol.extent.getWidth(tile.getExtent()) /
+        ol.size.toSize(source.getTileGrid().getTileSize(tile.tileCoord[0]))[0];
 };
 
 

src/ol/source/bingmaps.js

@@ -141,7 +141,7 @@ ol.source.BingMaps.prototype.handleImageryMetadataResponse = function(response)
     extent: extent,
     minZoom: resource.zoomMin,
     maxZoom: maxZoom,
-    tileSize: tileSize / this.getTilePixelRatio()
+    tileSize: tileSize / (this.hidpi_ ? 2 : 1)
   });
   this.tileGrid = tileGrid;
 

src/ol/source/tile.js

@@ -244,12 +244,11 @@ ol.source.Tile.prototype.getTileCacheForProjection = function(projection) {
 /**
  * Get the tile pixel ratio for this source. Subclasses may override this
  * method, which is meant to return a supported pixel ratio that matches the
- * provided `opt_pixelRatio` as close as possible. When no `opt_pixelRatio` is
- * provided, it is meant to return `this.tilePixelRatio_`.
- * @param {number=} opt_pixelRatio Pixel ratio.
+ * provided `pixelRatio` as close as possible.
+ * @param {number} pixelRatio Pixel ratio.
  * @return {number} Tile pixel ratio.
  */
-ol.source.Tile.prototype.getTilePixelRatio = function(opt_pixelRatio) {
+ol.source.Tile.prototype.getTilePixelRatio = function(pixelRatio) {
   return this.tilePixelRatio_;
 };
 

src/ol/source/vectortile.js

@@ -40,7 +40,6 @@ ol.source.VectorTile = function(options) {
     tileLoadFunction: options.tileLoadFunction ?
       options.tileLoadFunction : ol.VectorImageTile.defaultLoadFunction,
     tileUrlFunction: options.tileUrlFunction,
-    tilePixelRatio: options.tilePixelRatio,
     url: options.url,
     urls: options.urls,
     wrapX: options.wrapX === undefined ? true : options.wrapX
@@ -141,10 +140,8 @@ ol.source.VectorTile.prototype.getTileGridForProjection = function(projection) {
 /**
  * @inheritDoc
  */
-ol.source.VectorTile.prototype.getTilePixelRatio = function(opt_pixelRatio) {
-  return opt_pixelRatio == undefined ?
-    ol.source.UrlTile.prototype.getTilePixelRatio.call(this, opt_pixelRatio) :
-    opt_pixelRatio;
+ol.source.VectorTile.prototype.getTilePixelRatio = function(pixelRatio) {
+  return pixelRatio;
 };
 
 

src/ol/vectortile.js

@@ -93,7 +93,7 @@ ol.VectorTile.prototype.disposeInternal = function() {
  * @return {ol.Extent} The extent.
  */
 ol.VectorTile.prototype.getExtent = function() {
-  return this.extent_;
+  return this.extent_ || ol.VectorTile.DEFAULT_EXTENT;
 };
 
 
@@ -180,7 +180,12 @@ ol.VectorTile.prototype.onError = function() {
 
 
 /**
- * Sets the extent of the vector tile.
+ * Sets the extent of the vector tile. For tiles in projections with
+ * `tile-pixels` as units, this should be set to
+ * `[0, 0, tilePixelSize, tilePixelSize]` by the source's `tileLoadFunction`.
+ * `tilePixelSize` is calculated by multiplying the tile size with the tile
+ * pixel ratio. When using `ol.format.MVT`, the format's `getLastExtent()`
+ * method returns the correct extent. The default is `[0, 0, 4096, 4096]`.
  * @param {ol.Extent} extent The extent.
  * @api
  */
@@ -227,3 +232,10 @@ ol.VectorTile.prototype.setReplayGroup = function(layer, key, replayGroup) {
 ol.VectorTile.prototype.setLoader = function(loader) {
   this.loader_ = loader;
 };
+
+
+/**
+ * @const
+ * @type {ol.Extent}
+ */
+ol.VectorTile.DEFAULT_EXTENT = [0, 0, 4096, 4096];