diff options
Diffstat (limited to 'basicsuite/webengine/content/rubiks/js/quaternion.js')
-rw-r--r-- | basicsuite/webengine/content/rubiks/js/quaternion.js | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/basicsuite/webengine/content/rubiks/js/quaternion.js b/basicsuite/webengine/content/rubiks/js/quaternion.js deleted file mode 100644 index a44cfea..0000000 --- a/basicsuite/webengine/content/rubiks/js/quaternion.js +++ /dev/null @@ -1,78 +0,0 @@ -var Quaternion = OZ.Class(); - -Quaternion.fromRotation = function(axis, angle) { - var DEG2RAD = Math.PI/180; - var a = angle * DEG2RAD; - - var sin = Math.sin(a/2); - var cos = Math.cos(a/2); - - return new this( - axis[0]*sin, axis[1]*sin, axis[2]*sin, - cos - ); -} - -Quaternion.fromUnit = function() { - return new this(0, 0, 0, 1); -} - -Quaternion.prototype.init = function(x, y, z, w) { - this.x = x; - this.y = y; - this.z = z; - this.w = w; -} - -Quaternion.prototype.normalize = function() { - var norm = Math.sqrt(this.x*this.x + this.y*this.y + this.z*this.z + this.w*this.w); - return new this.constructor(this.x/norm, this.y/norm, this.z/norm, this.w/norm); -} - -Quaternion.prototype.conjugate = function() { - return new this.constructor(-this.x, -this.y, -this.z, this.w); -} - -Quaternion.prototype.toString = function() { - return [this.x, this.y, this.z, this.w].toString(", "); -} - -Quaternion.prototype.multiply = function(q) { - var p = this; - - var x = p.w*q.x + p.x*q.w + p.y*q.z - p.z*q.y; - var y = p.w*q.y + p.y*q.w + p.z*q.x - p.x*q.z; - var z = p.w*q.z + p.z*q.w + p.x*q.y - p.y*q.x; - var w = p.w*q.w - p.x*q.x - p.y*q.y - p.z*q.z; - - return new this.constructor(x, y, z, w); -} - -Quaternion.prototype.toAxis = function() { - return [this.x, this.y, this.z]; -} - -Quaternion.prototype.toAngle = function() { - var RAD2DEG = 180/Math.PI; - return RAD2DEG * 2 * Math.acos(this.w); -} - -Quaternion.prototype.toRotation = function() { - var axis = this.toAxis(); - var angle = this.toAngle(); - return "rotate3d(" + axis[0].toFixed(10) + "," + axis[1].toFixed(10) + "," + axis[2].toFixed(10) + "," + angle.toFixed(10) + "deg)"; -} - -Quaternion.prototype.toRotations = function() { - var RAD2DEG = 180/Math.PI; - - var x = RAD2DEG * Math.atan2(2*(this.w*this.x + this.y*this.z), 1 - 2*(this.x*this.x + this.y*this.y)); - var y = RAD2DEG * Math.asin(2*(this.w*this.y - this.x*this.z)); - var z = RAD2DEG * Math.atan2(2*(this.w*this.z + this.x*this.y), 1 - 2*(this.y*this.y + this.z*this.z)); - - if (x < 0) { x += 360; } - if (y < 0) { y += 360; } - if (z < 0) { z += 360; } - - return "rotateX(" + x.toFixed(10) + "deg) rotateY(" + y.toFixed(10) + "deg) rotate(" + z.toFixed(10) + "deg)"; -} |