Matrix^(native)

The Matrix class holds a 3x3 matrix for transforming coordinates.

Example

var bitmap = Bitmap.fromFile("dat://moscrif.jpg"); var matrix = new Matrix(); //move bitmap to the midle of screen matrix.setTranslate(System.width / 2 - bitmap.width / 2, System.height / 2 - bitmap.height / 2); //rotate bitmap to 45° matrix.preRotate(45); //draw rotated bitmap canvas.drawBitmapMatrix(bitmap, matrix);

Properties

• scaleX : Float
  X scale
• scaleY : Float
  Y scale
• skewX : Float
  X skew
• skewY : Float
  Y skew
• translateX : Float
  X translate
• translateY : Float
  Y translate

Methods

• postRotate(degrees, px, py) : Boolean
  Postconcats the matrix with the specified rotation. M' = R(degrees, px, py) * M
• postScale(sx, sy, px, py) : Boolean
  Postconcats the matrix with the specified scale. M' = S(sx, sy, px, py) * M
• postSkew(kx, ky, px, py) : Boolean
  Postconcats the matrix with the specified skew. M' = K(kx, ky, px, py) * M
• postTranslate(dx,dy) : Boolean
  Postconcats the matrix with the specified translation. M' = T(dx, dy) * M
• preRotate(degrees, px, py) : Boolean
  Preconcats the matrix with the specified rotation. M' = M * R(degrees, px, py).
• preScale(sx, sy, px, py) : Boolean
  Preconcats the matrix with the specified scale. M' = M * S(sx, sy, px, py)
• preSkew(kx, ky, px, py) : Boolean
  Preconcats the matrix with the specified skew. M' = M * K(kx, ky, px, py)
• preTranslate(dx, dy) : Boolean
  Preconcats the matrix with the specified translation. M' = M * T(dx, dy)
• reset()
  Reset matrix to the matrix identity
• setRectToRect(srcleft, srctop, srcright, srcbottom, dstleft, dsttop, dstright, dstbottom, scaleToFit) : Boolean
  Set the matrix to the scale and translate values that map the source rectangle to the destination rectangle, returning true if the the result can be represented.
• setRotate(degrees, px, py)
  Set the matrix to rotate by the specified number of degrees around a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.
• setScale(sx, sy [,px, py])
  Set the matrix to scale by sx and sy, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.
• setSkew(kx, ky, px, py)
  Set the matrix to skew by sx and sy, with a pivot point at (px, py). The pivot point is the coordinate that should remain unchanged by the specified transformation.
• setTranslate(dx, dy)
  Set the matrix to translate by (dx, dy).
• this() : Matrix
  Object constructor creates new 3x3 matrix