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Translate to image center before scale and rotation

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Same treatment here as with the canvas replay.
This commit is contained in:
Tim Schaub
2013-12-20 13:16:04 -07:00
parent c599c649ab
commit f5b9687479
1 changed files with 4 additions and 1 deletions
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5
src/ol/render/canvas/canvasimmediate.js
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@@ -144,8 +144,11 @@ ol.render.canvas.Immediate.prototype.drawImages_ = function(geometry) {
y = (y + 0.5) | 0; y = (y + 0.5) | 0;
} }
if (state.scale != 1 || state.rotation !== 0) { if (state.scale != 1 || state.rotation !== 0) {
var centerX = x + state.anchorX;
var centerY = y + state.anchorY;
ol.vec.Mat4.makeTransform2D(localTransform, ol.vec.Mat4.makeTransform2D(localTransform,
x, y, state.scale, state.scale, state.rotation, -x, -y); centerX, centerY, state.scale, state.scale,
state.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),