fixed mouse x and y position for graph3d tool tips

lib/graph3d/Graph3d.js

@@ -1941,8 +1941,9 @@ Graph3d.prototype._onMouseUp = function (event) {
  */
 Graph3d.prototype._onTooltip = function (event) {
   var delay = 300; // ms
-  var mouseX = getMouseX(event) - util.getAbsoluteLeft(this.frame);
-  var mouseY = getMouseY(event) - util.getAbsoluteTop(this.frame);
+  var boundingRect = this.frame.getBoundingClientRect();
+  var mouseX = getMouseX(event) - boundingRect.left;
+  var mouseY = getMouseY(event) - boundingRect.top;
 
   if (!this.showTooltip) {
     return;