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Merge pull request #161 from elemoine/nullimage

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Do not draw image if image is null
This commit is contained in:
Éric Lemoine
2013-01-28 03:51:17 -08:00
parent 43fe004917 1d2551dbcb
commit faee272fac
1 changed files with 13 additions and 10 deletions
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23
src/ol/renderer/canvas/canvasmaprenderer.js
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@@ -118,17 +118,20 @@ ol.renderer.canvas.Map.prototype.renderFrame = function(frameState) {
var layerRenderer = this.getLayerRenderer(layer);
layerRenderer.renderFrame(frameState, layerState);
var transform = layerRenderer.getTransform();
context.setTransform(
goog.vec.Mat4.getElement(transform, 0, 0),
goog.vec.Mat4.getElement(transform, 1, 0),
goog.vec.Mat4.getElement(transform, 0, 1),
goog.vec.Mat4.getElement(transform, 1, 1),
goog.vec.Mat4.getElement(transform, 0, 3),
goog.vec.Mat4.getElement(transform, 1, 3));
var image = layerRenderer.getImage();
if (!goog.isNull(image)) {
var transform = layerRenderer.getTransform();
context.setTransform(
goog.vec.Mat4.getElement(transform, 0, 0),
goog.vec.Mat4.getElement(transform, 1, 0),
goog.vec.Mat4.getElement(transform, 0, 1),
goog.vec.Mat4.getElement(transform, 1, 1),
goog.vec.Mat4.getElement(transform, 0, 3),
goog.vec.Mat4.getElement(transform, 1, 3));
context.globalAlpha = layerState.opacity;
context.drawImage(layerRenderer.getImage(), 0, 0);
context.globalAlpha = layerState.opacity;
context.drawImage(image, 0, 0);
}
}, this);