diff -r 4f9aa2f4af8c -r e3537f6de112 client/js/renderer/shapebuilder.js
--- a/client/js/renderer/shapebuilder.js	Wed Jun 10 16:00:16 2015 +0200
+++ b/client/js/renderer/shapebuilder.js	Wed Jun 10 16:00:45 2015 +0200
@@ -76,7 +76,10 @@
                 return new paper.Path.RegularPolygon([0,0], 3, 1);
             },
             getImageShape: function(center, radius) {
-                return new paper.Path.RegularPolygon(center, 3, radius);
+                var shape = new paper.Path.RegularPolygon([0,0], 3, 1);
+                shape.scale(radius);
+                shape.translate(center);
+                return shape;
             }
         },
         "svg": function(path){