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Translate to image anchor point, scale, rotate, translate back

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This commit is contained in:
Tim Schaub
2013-12-20 13:12:35 -07:00
parent 1a78c17713
commit c599c649ab
1 changed files with 4 additions and 1 deletions
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src/ol/render/canvas/canvasreplay.js
+4 -1
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@@ -227,8 +227,11 @@ ol.render.canvas.Replay.prototype.replay_ =
y = (y + 0.5) | 0; y = (y + 0.5) | 0;
} }
if (scale != 1 || rotation !== 0) { if (scale != 1 || rotation !== 0) {
var centerX = x + anchorX;
var centerY = y + anchorY;
ol.vec.Mat4.makeTransform2D( ol.vec.Mat4.makeTransform2D(
localTransform, x, y, scale, scale, rotation, -x, -y); localTransform, centerX, centerY, scale, scale,
rotation, -centerX, -centerY);
context.setTransform( context.setTransform(
goog.vec.Mat4.getElement(localTransform, 0, 0), goog.vec.Mat4.getElement(localTransform, 0, 0),
goog.vec.Mat4.getElement(localTransform, 1, 0), goog.vec.Mat4.getElement(localTransform, 1, 0),