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Improve type checking in ol.renderer.canvas.Map

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Tom Payne
2013-11-20 11:01:10 +01:00
parent e487e1b215
commit d3981e2891
1 changed files with 4 additions and 1 deletions
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src/ol/renderer/canvas/canvasmaprenderer.js
+4 -1
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@@ -122,7 +122,8 @@ ol.renderer.canvas.Map.prototype.renderFrame = function(frameState) {
for (i = 0, ii = layersArray.length; i < ii; ++i) { for (i = 0, ii = layersArray.length; i < ii; ++i) {
layer = layersArray[i]; layer = layersArray[i];
layerRenderer = this.getLayerRenderer(layer); layerRenderer =
/** @type {ol.renderer.canvas.Layer} */ (this.getLayerRenderer(layer));
layerState = layerStates[goog.getUid(layer)]; layerState = layerStates[goog.getUid(layer)];
if (!layerState.visible || if (!layerState.visible ||
layerState.sourceState != ol.source.State.READY || layerState.sourceState != ol.source.State.READY ||
@@ -144,6 +145,8 @@ ol.renderer.canvas.Map.prototype.renderFrame = function(frameState) {
var dy = goog.vec.Mat4.getElement(transform, 1, 3); var dy = goog.vec.Mat4.getElement(transform, 1, 3);
var dw = image.width * goog.vec.Mat4.getElement(transform, 0, 0); var dw = image.width * goog.vec.Mat4.getElement(transform, 0, 0);
var dh = image.height * goog.vec.Mat4.getElement(transform, 1, 1); var dh = image.height * goog.vec.Mat4.getElement(transform, 1, 1);
goog.asserts.assert(goog.isNumber(image.width));
goog.asserts.assert(goog.isNumber(image.height));
context.drawImage(image, 0, 0, image.width, image.height, context.drawImage(image, 0, 0, image.width, image.height,
Math.round(dx), Math.round(dy), Math.round(dw), Math.round(dh)); Math.round(dx), Math.round(dy), Math.round(dw), Math.round(dh));
} else { } else {