Merge branch 'master' into pentool

1 files changed, 242 insertions, 0 deletions

diff --git a/js/lib/geom/anchor-point.js b/js/lib/geom/anchor-point.js
new file mode 100755
index 00000000..0e9f65ea
--- /dev/null
+++ b/js/lib/geom/anchor-point.js
@@ -0,0 +1,242 @@
+/* <copyright>
+This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+</copyright> */
+
+/////////////////////////////////////////////
+// Class GLAnchorPoint
+//      GL representation of a point clicked 
+//          and dragged during pen tool
+//      
+//    
+/////////////////////////////////////////////
+var GLAnchorPoint = function GLAnchorPoint() {
+    /////////////////////////////////////////
+    // Instance variables 
+    /////////////////////////////////////////
+    this._x = 0.0;
+    this._y = 0.0;
+    this._z = 0.0;
+
+    this._prevX = 0.0;
+    this._prevY = 0.0;
+    this._prevZ = 0.0;
+
+    this._nextX = 0.0;
+    this._nextY = 0.0;
+    this._nextZ = 0.0;
+};
+    // *********** setters ************
+GLAnchorPoint.prototype.setPos = function (x, y, z) {
+    this._x = x;
+    this._y = y;
+    this._z = z;
+};
+
+GLAnchorPoint.prototype.setPrevPos = function (x, y, z) {
+    this._prevX = x;
+    this._prevY = y;
+    this._prevZ = z;
+};
+
+GLAnchorPoint.prototype.setNextPos = function (x, y, z) {
+    this._nextX = x;
+    this._nextY = y;
+    this._nextZ = z;
+};
+
+GLAnchorPoint.prototype.setPrevFromNext = function () {
+    //set the previous control point by reflecting the next control point
+    var dispX = this._nextX - this._x;
+    var dispY = this._nextY - this._y;
+    var dispZ = this._nextZ - this._z;
+
+    this._prevX = this._x - dispX;
+    this._prevY = this._y - dispY;
+    this._prevZ = this._z - dispZ;
+};
+
+GLAnchorPoint.prototype.setNextFromPrev = function () {
+    //set the previous control point by reflecting the next control point
+    var dispX = this._prevX - this._x;
+    var dispY = this._prevY - this._y;
+    var dispZ = this._prevZ - this._z;
+
+    this._nextX = this._x - dispX;
+    this._nextY = this._y - dispY;
+    this._nextZ = this._z - dispZ;
+};
+
+//translate the next point from the translation that was applied to the prev. point
+GLAnchorPoint.prototype.translateNextFromPrev = function (tx, ty, tz) {
+    //do nothing if the total translation is zero
+    var totalTransSq = (tx*tx) + (ty*ty) + (tz*tz);
+    if (totalTransSq < 0.0000001) {
+        return;
+    }
+    
+    // *** compute the rotation of the prev vector ***
+    var oldP = [this._prevX + tx - this._x, this._prevY + ty - this._y, this._prevZ + tz - this._z];
+    var newP = [this._prevX - this._x, this._prevY - this._y, this._prevZ - this._z];
+    //compute angle between the two vectors
+    var axis = [0, 0, 0];
+    var angle = MathUtils.getAxisAngleBetween3DVectors(oldP, newP, axis);
+    if (angle === 0) {
+        return;
+    }
+
+    // *** compute the vector from anchor to next
+    var oldN = [this._nextX - this._x, this._nextY - this._y, this._nextZ - this._z];
+    var rotMat = Matrix.Rotation(-angle, axis);
+    var newN = MathUtils.transformVector(oldN, rotMat);
+
+    //TEMP for some situations the axis angle computation returns NaNs
+    if (isNaN(newN[0]) || isNaN(newN[1]) || isNaN(newN[2])) {
+        console.log("NaN in translateNextFromPrev");
+        return;
+    }
+    //end TEMP
+    this._nextX = this._x + newN[0];
+    this._nextY = this._y + newN[1];
+    this._nextZ = this._z + newN[2];
+};
+
+//translate the next point from the translation that was applied to the prev. point
+GLAnchorPoint.prototype.translatePrevFromNext = function (tx, ty, tz) {
+    //do nothing if the total translation is zero
+    var totalTransSq = (tx*tx) + (ty*ty) + (tz*tz);
+    if (totalTransSq < 0.0000001) {
+        return;
+    }
+        
+    // *** compute the rotation of the next vector ***
+    var oldN = [this._nextX + tx - this._x, this._nextY + ty - this._y, this._nextZ + tz - this._z];
+    var newN = [this._nextX - this._x, this._nextY - this._y, this._nextZ - this._z];
+    //compute angle between the two vectors
+    var axis = [0, 0, 0];
+    var angle = MathUtils.getAxisAngleBetween3DVectors(oldN, newN, axis);
+    if (angle === 0) {
+        return;
+    }
+
+    // *** compute the vector from anchor to prev
+    var oldP = [this._prevX - this._x, this._prevY - this._y, this._prevZ - this._z];
+    var rotMat = Matrix.Rotation(-angle, axis);
+    var newP = MathUtils.transformVector(oldP, rotMat);
+
+    //TEMP for some situations the axis angle computation returns NaNs
+    if (isNaN(newP[0]) || isNaN(newP[1]) || isNaN(newP[2])) {
+        return;
+    }
+    //end TEMP
+    this._prevX = this._x + newP[0];
+    this._prevY = this._y + newP[1];
+    this._prevZ = this._z + newP[2];
+};
+
+// ******* modifiers *******
+GLAnchorPoint.prototype.translatePrev = function (x, y, z) {
+    this._prevX += x;
+    this._prevY += y;
+    this._prevZ += z;
+};
+
+GLAnchorPoint.prototype.translateNext = function (x, y, z) {
+    this._nextX += x;
+    this._nextY += y;
+    this._nextZ += z;
+};
+
+GLAnchorPoint.prototype.translate = function (x, y, z) {
+    this._x += x;
+    this._y += y;
+    this._z += z;
+};
+
+GLAnchorPoint.prototype.translateAll = function (x, y, z) {
+    this.translate(x, y, z);
+    this.translatePrev(x, y, z);
+    this.translateNext(x, y, z);
+};
+
+GLAnchorPoint.prototype.scaleAll = function(sx,sy,sz){
+    this._x *= sx;
+    this._prevX *= sx;
+    this._nextX *= sx;
+    this._y *= sy;
+    this._prevY *= sy;
+    this._nextY *= sy;
+    this._z *= sz;
+    this._prevZ *= sz;
+    this._nextZ *= sz;
+};
+
+// ********* getters **********
+GLAnchorPoint.prototype.getPosX = function () {
+    return this._x;
+};
+
+GLAnchorPoint.prototype.getPosY = function () {
+    return this._y;
+};
+
+GLAnchorPoint.prototype.getPosZ = function () {
+    return this._z;
+};
+
+GLAnchorPoint.prototype.getPrevX = function () {
+    return this._prevX;
+};
+
+GLAnchorPoint.prototype.getPrevY = function () {
+    return this._prevY;
+};
+
+GLAnchorPoint.prototype.getPrevZ = function () {
+    return this._prevZ;
+};
+
+GLAnchorPoint.prototype.getNextX = function () {
+    return this._nextX;
+};
+
+GLAnchorPoint.prototype.getNextY = function () {
+    return this._nextY;
+};
+
+GLAnchorPoint.prototype.getNextZ = function () {
+    return this._nextZ;
+};
+
+GLAnchorPoint.prototype.getPos = function() {
+    return [this._x, this._y, this._z];
+};
+
+GLAnchorPoint.prototype.getPrev = function() {
+    return [this._prevX, this._prevY, this._prevZ];
+};
+
+GLAnchorPoint.prototype.getNext = function() {
+    return [this._nextX, this._nextY, this._nextZ];
+};
+
+//return the square of distance from passed in point to the anchor position
+GLAnchorPoint.prototype.getDistanceSq = function (x, y, z) {
+    return (this._x - x) * (this._x - x) + (this._y - y) * (this._y - y) + (this._z - z) * (this._z - z);
+};
+
+//return sq. of distance to prev.
+GLAnchorPoint.prototype.getPrevDistanceSq = function (x, y, z) {
+    return (this._prevX - x) * (this._prevX - x) + (this._prevY - y) * (this._prevY - y) + (this._prevZ - z) * (this._prevZ - z);
+};
+
+//return sq. of distance to next
+GLAnchorPoint.prototype.getNextDistanceSq = function (x, y, z) {
+    return (this._nextX - x) * (this._nextX - x) + (this._nextY - y) * (this._nextY - y) + (this._nextZ - z) * (this._nextZ - z);
+};
+
+if (typeof exports === "object") {
+    exports.AnchorPoint = GLAnchorPoint;