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Clean up Matrix documentation.

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Jürg Lehni 2013-12-07 05:20:38 +01:00
parent 2d307f0e7c
commit 268ecad00b
1 changed files with 35 additions and 35 deletions
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70
src/basic/Matrix.js
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@ -147,6 +147,33 @@ var Matrix = Base.extend(/** @lends Matrix# */{
return this;
},
/**
* Concatenates this transform with a translate transformation.
*
* @name Matrix#translate
* @function
* @param {Point} point the vector to translate by
* @return {Matrix} this affine transform
*/
/**
* Concatenates this transform with a translate transformation.
*
* @name Matrix#translate
* @function
* @param {Number} dx the distance to translate in the x direction
* @param {Number} dy the distance to translate in the y direction
* @return {Matrix} this affine transform
*/
translate: function(/* point */) {
var point = Point.read(arguments),
x = point.x,
y = point.y;
this._tx += x * this._a + y * this._b;
this._ty += x * this._c + y * this._d;
this._changed();
return this;
},
/**
* Concatenates this transform with a scaling transformation.
*
@ -183,33 +210,6 @@ var Matrix = Base.extend(/** @lends Matrix# */{
return this;
},
/**
* Concatenates this transform with a translate transformation.
*
* @name Matrix#translate
* @function
* @param {Point} point the vector to translate by
* @return {Matrix} this affine transform
*/
/**
* Concatenates this transform with a translate transformation.
*
* @name Matrix#translate
* @function
* @param {Number} dx the distance to translate in the x direction
* @param {Number} dy the distance to translate in the y direction
* @return {Matrix} this affine transform
*/
translate: function(point) {
point = Point.read(arguments);
var x = point.x,
y = point.y;
this._tx += x * this._a + y * this._b;
this._ty += x * this._c + y * this._d;
this._changed();
return this;
},
/**
* Concatenates this transform with a rotation transformation around an
* anchor point.
@ -233,7 +233,7 @@ var Matrix = Base.extend(/** @lends Matrix# */{
*/
rotate: function(angle, center) {
center = Point.read(arguments, 1);
angle = angle * Math.PI / 180;
angle *= Math.PI / 180;
// Concatenate rotation matrix into this one
var x = center.x,
y = center.y,
@ -260,7 +260,7 @@ var Matrix = Base.extend(/** @lends Matrix# */{
*
* @name Matrix#shear
* @function
* @param {Point} point the shear factor in x and y direction
* @param {Point} shear the shear factor in x and y direction
* @param {Point} [center] the center for the shear transformation
* @return {Matrix} this affine transform
*/
@ -274,19 +274,19 @@ var Matrix = Base.extend(/** @lends Matrix# */{
* @param {Point} [center] the center for the shear transformation
* @return {Matrix} this affine transform
*/
shear: function(/* point, center */) {
shear: function(/* shear, center */) {
// Do not modify point, center, since that would arguments of which
// we're reading from!
var point = Point.read(arguments),
var shear = Point.read(arguments),
center = Point.read(arguments, 0, 0, { readNull: true });
if (center)
this.translate(center);
var a = this._a,
c = this._c;
this._a += point.y * this._b;
this._c += point.y * this._d;
this._b += point.x * a;
this._d += point.x * c;
this._a += shear.y * this._b;
this._c += shear.y * this._d;
this._b += shear.x * a;
this._d += shear.x * c;
if (center)
this.translate(center.negate());
this._changed();