Merge branch 'master' into brushtool

1 files changed, 63 insertions, 17 deletions

diff --git a/js/helper-classes/3D/view-utils.js b/js/helper-classes/3D/view-utils.js
index 40a19b90..919f7c50 100755
--- a/js/helper-classes/3D/view-utils.js
+++ b/js/helper-classes/3D/view-utils.js
@@ -124,35 +124,81 @@ exports.ViewUtils = Montage.create(Component, {
         }
     },
 
-    getNormalToUnprojectedElementPlane: {
-        value: function( elt ) {
-            var mat = this.getMatrixFromElement(elt);
+    /*
+         *  This method will return a normal to a plane containing the Z axis and either the
+         *  x or y axis of the element.
+         */
+        getNormalToUnprojectedElementPlane:
+        {
+        value: function( elt, axis,  localMode )
+                {
+            var objMat = this.getMatrixFromElement(elt);
+                        var objMatInv = glmat4.inverse( objMat, [] );
 
-            var xVec = [mat[0],  mat[1],  mat[2],  mat[3]];
-            var yVec = [mat[4],  mat[5],  mat[6],  mat[7]];
+            var xVec = [1,0,0];
+            var yVec = [0,1,0];
+            var zVec = [0,0,1];
 
             var stage = this.application.ninja.currentDocument.documentRoot;
             var stageMat = this.getMatrixFromElement(stage);
-            var stagePlane = [stageMat[8],  stageMat[9],  stageMat[10],  stageMat[11]];
 
+                        var mat = glmat4.multiply( stageMat, objMat, [] );
+                        
+                        var viewDir;
+                        if (localMode)
+                        {
+                                var matInv = glmat4.inverse( mat, [] );
+                                viewDir = MathUtils.transformVector( [0,0,1], matInv );
+                        }
+                        else
+                        {
+                                var stageInv = glmat4.inverse( stageMat, [] );
+                                viewDir = MathUtils.transformVector( [0,0,1],  stageInv );
+                        }
+
+                        /*
                         if (elt === stage)
                         {
                                 xVec = [1,0,0];
                                 yVec = [0,1,0];
                         }
+                        */
 
-            var xDot = Math.abs(vecUtils.vecDot(3, xVec, stagePlane));
-            var yDot = Math.abs(vecUtils.vecDot(3, yVec, stagePlane));
+                        var plane;
+                        var xDot, yDot, zDot;
+                        switch (axis)
+                        {
+                                case 0:
+                                        yDot = Math.abs(vecUtils.vecDot(3, yVec, viewDir));
+                                        zDot = Math.abs(vecUtils.vecDot(3, zVec, viewDir));
+                                        if(yDot > zDot)
+                                                plane = vecUtils.vecCross( 3, zVec, xVec );
+                                        else
+                                                plane = vecUtils.vecCross( 3, yVec, xVec );
+                                        break;
+                                        
+                                case 1:
+                                        xDot = Math.abs(vecUtils.vecDot(3, yVec, viewDir));
+                                        zDot = Math.abs(vecUtils.vecDot(3, zVec, viewDir));
+                                        if(xDot > zDot)
+                                                plane = vecUtils.vecCross( 3, zVec, yVec );
+                                        else
+                                                plane = vecUtils.vecCross( 3, xVec, yVec );
+                                        break;
+                                        break;
+
+                                case 2:
+                                        xDot = Math.abs(vecUtils.vecDot(3, xVec, viewDir));
+                                        yDot = Math.abs(vecUtils.vecDot(3, yVec, viewDir));
+
+                                        if(xDot > yDot)
+                                                plane = vecUtils.vecCross( 3, yVec, zVec );
+                                        else
+                                                plane = vecUtils.vecCross( 3, xVec, zVec );
+                                        break;
+                        }
 
-            var plane;
-            if(xDot > yDot)
-            {
-                plane = xVec;
-            }
-            else
-            {
-                plane = yVec;
-            }
+                        if (localMode)  plane = MathUtils.transformVector( plane, objMat );
 
             // The translation value is a point on the plane
             this.pushViewportObj( elt );