dojox/gfx/matrix.js

• Provides:

  • dojox.gfx.matrix

• dojox.gfx.matrix.identity

  • type

    dojox.gfx.matrix.Matrix2D

  • summary

    an identity matrix constant: identity * (x, y) == (x, y)

• dojox.gfx.matrix.flipX

  • type

    dojox.gfx.matrix.Matrix2D

  • summary

    a matrix, which reflects points at x = 0 line: flipX * (x, y) == (-x, y)

• dojox.gfx.matrix.flipY

  • type

    dojox.gfx.matrix.Matrix2D

  • summary

    a matrix, which reflects points at y = 0 line: flipY * (x, y) == (x, -y)

• dojox.gfx.matrix.flipXY

  • type

    dojox.gfx.matrix.Matrix2D

  • summary

    a matrix, which reflects points at the origin of coordinates: flipXY * (x, y) == (-x, -y)

• dojox.gfx.matrix.translate

  • parameters:
    • a: (typeof Number:)

      an x coordinate value

    • b: (typeof Number:)

      a y coordinate value

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a translation matrix

  • description

    The resulting matrix is used to translate (move) points by specified offsets.

  • type

    Function

• dojox.gfx.matrix.scale

  • parameters:
    • a: (typeof Number:)

      a scaling factor used for the x coordinate

    • b: (typeof Number:)

      a scaling factor used for the y coordinate

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a scaling matrix

  • description

    The resulting matrix is used to scale (magnify) points by specified offsets.

  • type

    Function

• dojox.gfx.matrix.rotate

  • parameters:
    • angle: (typeof Number:)

      an angle of rotation in radians (>0 for CW)

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a rotating matrix

  • description

    The resulting matrix is used to rotate points
    around the origin of coordinates (0, 0) by specified angle.

  • type

    Function

• dojox.gfx.matrix.rotateg

  • parameters:
    • degree: (typeof Number:)

      an angle of rotation in degrees (>0 for CW)

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a rotating matrix

  • description

    The resulting matrix is used to rotate points
    around the origin of coordinates (0, 0) by specified degree.
    See dojox.gfx.matrix.rotate() for comparison.

  • type

    Function

• dojox.gfx.matrix.skewX

  • parameters:
    • angle: (typeof Number:)

      an skewing angle in radians

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms an x skewing matrix

  • description

    The resulting matrix is used to skew points in the x dimension
    around the origin of coordinates (0, 0) by specified angle.

  • type

    Function

• dojox.gfx.matrix.skewXg

  • parameters:
    • degree: (typeof Number:)

      an skewing angle in degrees

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms an x skewing matrix

  • description

    The resulting matrix is used to skew points in the x dimension
    around the origin of coordinates (0, 0) by specified degree.
    See dojox.gfx.matrix.skewX() for comparison.

  • type

    Function

• dojox.gfx.matrix.skewY

  • parameters:
    • angle: (typeof Number:)

      an skewing angle in radians

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a y skewing matrix

  • description

    The resulting matrix is used to skew points in the y dimension
    around the origin of coordinates (0, 0) by specified angle.

  • type

    Function

• dojox.gfx.matrix.skewYg

  • parameters:
    • degree: (typeof Number:)

      an skewing angle in degrees

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a y skewing matrix

  • description

    The resulting matrix is used to skew points in the y dimension
    around the origin of coordinates (0, 0) by specified degree.
    See dojox.gfx.matrix.skewY() for comparison.

  • type

    Function

• dojox.gfx.matrix.reflect

  • parameters:
    • a: (typeof dojox.gfx.Point:)

      a point-like object, which specifies a vector of reflection

    • b: (typeof null)
  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms a reflection matrix

  • description

    The resulting matrix is used to reflect points around a vector,
    which goes through the origin.

  • type

    Function

• dojox.gfx.matrix.project

  • parameters:
    • a: (typeof dojox.gfx.Point:)

      a point-like object, which specifies a vector of projection

    • b: (typeof null)
  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    forms an orthogonal projection matrix

  • description

    The resulting matrix is used to project points orthogonally on a vector,
    which goes through the origin.

  • type

    Function

• dojox.gfx.matrix.normalize

  • parameters:
    • matrix: (typeof Object:)

      an object, which is converted to a matrix, if necessary

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    converts an object to a matrix, if necessary

  • description

    Converts any 2D matrix-like object or an array of
    such objects to a valid dojox.gfx.matrix.Matrix2D object.

  • type

    Function

• dojox.gfx.matrix.clone

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix-like object to be cloned

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    creates a copy of a 2D matrix

  • type

    Function

• dojox.gfx.matrix.invert

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix-like object to be inverted

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    inverts a 2D matrix

  • type

    Function

• dojox.gfx.matrix._multiplyPoint

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix object to be applied

    • x: (typeof Number:)

      an x coordinate of a point

    • y: (typeof Number:)

      a y coordinate of a point

  • returns

    dojox.gfx.Point

  • summary

    applies a matrix to a point

  • type

    Function

• dojox.gfx.matrix.multiplyPoint

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix object to be applied

    • a: (typeof Number||Point)

      Number: an x coordinate of a point

    • b: (typeof Number,)

      Number: a y coordinate of a point

  • returns

    dojox.gfx.Point

  • summary

    applies a matrix to a point

  • type

    Function

• dojox.gfx.matrix.multiply

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix-like object,
      all subsequent arguments are matrix-like objects too

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    combines matrices by multiplying them sequentially in the given order

  • type

    Function

• dojox.gfx.matrix._sandwich

  • parameters:
    • matrix: (typeof dojox.gfx.matrix.Matrix2D:)

      a 2D matrix-like object, which is applied at a central point

    • x: (typeof Number:)

      an x component of the central point

    • y: (typeof Number:)

      a y component of the central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    applies a matrix at a centrtal point

  • type

    Function

• dojox.gfx.matrix.scaleAt

  • parameters:
    • a: (typeof Number:)

      a scaling factor used for the x coordinate

    • b: (typeof Number:)

      a scaling factor used for the y coordinate

    • c: (typeof Number:)

      an x component of a central point

    • d: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    scales a picture using a specified point as a center of scaling

  • description

    Compare with dojox.gfx.matrix.scale().

  • type

    Function

• dojox.gfx.matrix.rotateAt

  • parameters:
    • angle: (typeof Number:)

      an angle of rotation in radians (>0 for CW)

    • a: (typeof Number:)

      an x component of a central point

    • b: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    rotates a picture using a specified point as a center of rotation

  • description

    Compare with dojox.gfx.matrix.rotate().

  • type

    Function

• dojox.gfx.matrix.rotategAt

  • parameters:
    • degree: (typeof Number:)

      an angle of rotation in degrees (>0 for CW)

    • a: (typeof Number:)

      an x component of a central point

    • b: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    rotates a picture using a specified point as a center of rotation

  • description

    Compare with dojox.gfx.matrix.rotateg().

  • type

    Function

• dojox.gfx.matrix.skewXAt

  • parameters:
    • angle: (typeof Number:)

      an skewing angle in radians

    • a: (typeof Number:)

      an x component of a central point

    • b: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    skews a picture along the x axis using a specified point as a center of skewing

  • description

    Compare with dojox.gfx.matrix.skewX().

  • type

    Function

• dojox.gfx.matrix.skewXgAt

  • parameters:
    • degree: (typeof Number:)

      an skewing angle in degrees

    • a: (typeof Number:)

      an x component of a central point

    • b: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    skews a picture along the x axis using a specified point as a center of skewing

  • description

    Compare with dojox.gfx.matrix.skewXg().

  • type

    Function

• dojox.gfx.matrix.skewYAt

  • parameters:
    • angle: (typeof Number:)

      an skewing angle in radians

    • a: (typeof Number:)

      an x component of a central point

    • b: (typeof Number:)

      a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    skews a picture along the y axis using a specified point as a center of skewing

  • description

    Compare with dojox.gfx.matrix.skewY().

  • type

    Function

• dojox.gfx.matrix.skewYgAt

  • parameters:
    • degree: (typeof Number)

      Number: an skewing angle in degrees

    • a: (typeof Number||Point)

      Number: an x component of a central point

    • b: (typeof Number,)

      Number: a y component of a central point

  • returns

    dojox.gfx.matrix.Matrix2D

  • summary

    skews a picture along the y axis using a specified point as a center of skewing

  • description

    Compare with dojox.gfx.matrix.skewYg().

  • type

    Function

• dojox.gfx.matrix

  • summary

    class constants, and methods of dojox.gfx.matrix

  • alias - dojox.gfx.matrix

• dojox.gfx.matrix.Matrix2D

  • type

    Function

  • parameters:
    • arg: (typeof Object)

      a 2D matrix-like object, a number, or an array of such objects

  • summary

    a 2D matrix object

  • description

    Normalizes a 2D matrix-like object. If arrays is passed,
    all objects of the array are normalized and multiplied sequentially.

• dojox.gfx.matrix.Matrix2D.xx

  • type

    Number

• dojox.gfx.matrix.Matrix2D.xy

  • type

    Number

• dojox.gfx.matrix.Matrix2D.yx

  • type

    Number

• dojox.gfx.matrix.Matrix2D.yy

  • type

    Number

• dojox.gfx.matrix.Matrix2D.dx

  • type

    Number

• dojox.gfx.matrix.Matrix2D.dy

  • type

    Number

• dojox.gfx.matrix._degToRad

  • parameters:
    • degree
  • type

    Function

• dojox.gfx.matrix._radToDeg

  • parameters:
    • radian
  • type

    Function

• dojox.gfx.Matrix2D

  • alias - dojox.gfx.matrix.Matrix2D

• dojox.gfx

  • type

    Object

• dojox

  • type

    Object