From b89a7ee8b956c96a1dcee995ea840feddc5d4b27 Mon Sep 17 00:00:00 2001 From: Pierre Frisch Date: Thu, 22 Dec 2011 07:25:50 -0800 Subject: First commit of Ninja to ninja-internal Signed-off-by: Valerio Virgillito --- js/helper-classes/RDGE/GLAnchorPoint.js | 150 ++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 js/helper-classes/RDGE/GLAnchorPoint.js (limited to 'js/helper-classes/RDGE/GLAnchorPoint.js') diff --git a/js/helper-classes/RDGE/GLAnchorPoint.js b/js/helper-classes/RDGE/GLAnchorPoint.js new file mode 100644 index 00000000..496b6f60 --- /dev/null +++ b/js/helper-classes/RDGE/GLAnchorPoint.js @@ -0,0 +1,150 @@ +/* +This file contains proprietary software owned by Motorola Mobility, Inc.
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.
+(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved. + */ + +///////////////////////////////////////////// +// Class GLAnchorPoint +// GL representation of a point clicked +// and dragged during pen tool +// +// +///////////////////////////////////////////// +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 ************ + this.setPos = function (x, y, z) { this._x = x; this._y = y; this._z = z; } + this.setPrevPos = function (x, y, z) { this._prevX = x; this._prevY = y; this._prevZ = z; } + this.setNextPos = function (x, y, z) { this._nextX = x; this._nextY = y; this._nextZ = z; } + + this.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; + } + this.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 + this.translateNextFromPrev = function (tx, ty, tz) { + // *** compute the rotation of the prev vector *** + var oldP = Vector.create([this._prevX + tx - this._x, this._prevY + ty - this._y, this._prevZ + tz - this._z]); + var newP = Vector.create([this._prevX - this._x, this._prevY - this._y, this._prevZ - this._z]); + //compute angle between the two vectors + var axis = Vector.create([0, 0, 0]); + var angle = MathUtils.getAxisAngleBetween3DVectors(oldP, newP, axis); + if (angle === 0) + return; + + // *** compute the vector from anchor to next + var oldN = Vector.create([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])) { + 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 + this.translatePrevFromNext = function (tx, ty, tz) { + // *** compute the rotation of the next vector *** + var oldN = Vector.create([this._nextX + tx - this._x, this._nextY + ty - this._y, this._nextZ + tz - this._z]); + var newN = Vector.create([this._nextX - this._x, this._nextY - this._y, this._nextZ - this._z]); + //compute angle between the two vectors + var axis = Vector.create([0, 0, 0]); + var angle = MathUtils.getAxisAngleBetween3DVectors(oldN, newN, axis); + if (angle === 0) + return; + + // *** compute the vector from anchor to prev + var oldP = Vector.create([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 ******* + this.translatePrev = function (x, y, z) { + this._prevX += x; this._prevY += y; this._prevZ += z; + } + this.translateNext = function (x, y, z) { + this._nextX += x; this._nextY += y; this._nextZ += z; + } + this.translate = function (x, y, z) { + this._x += x; this._y += y; this._z += z; + } + this.translateAll = function (x, y, z) { + this.translate(x, y, z); + this.translatePrev(x, y, z); + this.translateNext(x, y, z); + } + + + // ********* getters ********** + this.getPosX = function () { return this._x; } + this.getPosY = function () { return this._y; } + this.getPosZ = function () { return this._z; } + this.getPrevX = function () { return this._prevX; } + this.getPrevY = function () { return this._prevY; } + this.getPrevZ = function () { return this._prevZ; } + this.getNextX = function () { return this._nextX; } + this.getNextY = function () { return this._nextY; } + this.getNextZ = function () { return this._nextZ; } + this.getPos = function() { return Vector.create([this._x, this._y, this._z]);} + this.getPrev = function() { return Vector.create([this._prevX, this._prevY, this._prevZ]);} + this.getNext = function() { return Vector.create([this._nextX, this._nextY, this._nextZ]);} + //return the square of distance from passed in point to the anchor position + this.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. + this.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 + this.getNextDistanceSq = function (x, y, z) { + return (this._nextX - x) * (this._nextX - x) + (this._nextY - y) * (this._nextY - y) + (this._nextZ - z) * (this._nextZ - z); + } +} -- cgit v1.2.3