Add x/y offset for icon symbolizers

2013-08-26 19:20:16 -06:00
parent 6baf5d0b18
commit efeb00e4a5
8 changed files with 178 additions and 17 deletions
@@ -209,6 +209,8 @@ ol.renderer.canvas.VectorRenderer.prototype.renderPointFeatures_ =
      content, alpha, i, ii, feature, id, size, geometry, components, j, jj,
      point, vec;

+  var xOffset = 0;
+  var yOffset = 0;
  if (symbolizer instanceof ol.style.ShapeLiteral) {
    content = ol.renderer.canvas.VectorRenderer.renderShape(symbolizer);
    alpha = 1;
@@ -216,6 +218,8 @@ ol.renderer.canvas.VectorRenderer.prototype.renderPointFeatures_ =
    content = ol.renderer.canvas.VectorRenderer.renderIcon(
        symbolizer, this.iconLoadedCallback_);
    alpha = symbolizer.opacity;
+    xOffset = symbolizer.xOffset;
+    yOffset = symbolizer.yOffset;
  } else {
    throw new Error('Unsupported symbolizer: ' + symbolizer);
  }
@@ -253,7 +257,8 @@ ol.renderer.canvas.VectorRenderer.prototype.renderPointFeatures_ =
      point = components[j];
      vec = [point.get(0), point.get(1), 0];
      goog.vec.Mat4.multVec3(this.transform_, vec, vec);
-      context.drawImage(content, vec[0], vec[1], content.width, content.height);
+      context.drawImage(content, vec[0] + xOffset, vec[1] + yOffset,
+          content.width, content.height);
    }
  }
  context.restore();