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

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