1 files changed, 12 insertions, 2 deletions

diff --git a/js/tools/modifier-tool-base.js b/js/tools/modifier-tool-base.js
index 94b806fd..07b28747 100755
--- a/js/tools/modifier-tool-base.js
+++ b/js/tools/modifier-tool-base.js
@@ -25,6 +25,7 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
         _snapParam: { value: null },
         _snapIndex: { value: -1 },
         _useQuadPt: { value: false },
+    _shouldUseQuadPt: { value: false },
 
         // we set snapping capabilities depending on the tool.
         // The following variables are set in a tool's initializeSnapping method called on mouse down.
@@ -175,6 +176,10 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
 //                        }
                     }
 
+                    // only do quadrant snapping if the 4 corners of the element are in the drag plane
+                    var sign = MathUtils.fpSign( VecUtils.vecDot(3,this._dragPlane,[0,0,1]) + this._dragPlane[3] - 1.0);
+                    this._shouldUseQuadPt = (sign == 0)
+
                                         var wpHitRec = hitRec.convertToWorkingPlane( this._dragPlane );
                                         this._mouseDownHitRec = wpHitRec;
                                         this._mouseUpHitRec = null;
@@ -236,6 +241,7 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
                                 }
                         }
 
+            //console.log( "ParameterizeSnap: " + paramPt );
                         return paramPt;
                 }
         },
@@ -284,14 +290,16 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
                                         y = x0 + ty*dy,
                                         z = 0.0;
                                 var localPt = [x,y,z];
+
                                 globalPt = viewUtils.localToGlobal( localPt,  elt );
  
                                 // add in the delta
                                 var hitPt = this.GetObjectHitPoint();
                                 var scrPt = viewUtils.localToGlobal( hitPt, this._clickedObject );
-                                var delta = [xEvent-scrPt[0], yEvent-scrPt[1]];
+                                var delta = [xEvent-scrPt[0], yEvent-scrPt[1], 0-scrPt[2]];
                                 globalPt[0] += delta[0];
                                 globalPt[1] += delta[1];
+                globalPt[2] += delta[2];
                         }
 
                         return globalPt;
@@ -517,7 +525,7 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
 
                         // do the snap
                         var quadPt;
-                        if (mouseIsDown)
+                        if (mouseIsDown && !do3DSnap && this._shouldUseQuadPt && (this._handleMode === null) && (this._mode === 0))
                                 quadPt = this.GetQuadrantSnapPoint(x,y);
                         var hitRec = snapManager.snap(x, y, do3DSnap, quadPt );
 
@@ -806,6 +814,8 @@ exports.ModifierToolBase = Montage.create(DrawingTool, {
     HandleLeftButtonDown: {
         value: function(event) {
 
+            console.log( "modifier-tool-base.HandleLeftButtonDown" );
+
             var point = webkitConvertPointFromPageToNode(this.application.ninja.stage.canvas, new WebKitPoint(event.pageX, event.pageY));
             this.downPoint.x = point.x;
             this.downPoint.y = point.y;