Class TransformationMatrix
Represents 3x3 transformation matrix | A B 0 | | C D 0 | | TX TY 1 |. Transforms coordinates in the following way: x1 = Ax + Cy + TX; y1 = Bx + Dy + TY.
public class TransformationMatrix : ICloneable
Constructors
| Name | Description |
|---|
| TransformationMatrix() | Creates standard 1 to 1 transformation matrix: [ A B C D TX TY ] = [ 1, 0, 0, 1, 0, 0]. |
| TransformationMatrix(double[]) | Accepts a transformation matrix with following array representation: [ A B C D TX TY ]. |
Properties
| Name | Description |
|---|
| A { get; set; } | Gets or sets A transformation matrix value. |
| B { get; set; } | Gets or sets B transformation matrix value. |
| C { get; set; } | Gets or sets C transformation matrix value. |
| D { get; set; } | Gets or sets D transformation matrix value. |
| Item { get; } | Provides access to underlying array. |
| TX { get; set; } | Gets or sets TX transformation matrix value. |
| TY { get; set; } | Gets or sets TY transformation matrix value. |
Methods
| Name | Description |
|---|
| Multiply(TransformationMatrix) | Multiplies with another transformation matrix. Doesn’t change original transformation matrix, returns a new TransformationMatrix object. |
| Scale(double, double, out double, out double) | Scales x and y with the transformation matrix: x1 = Ax + Cy; y1 = Bx + Dy. |
| ToArray() | Allocates new array, copies the transformation matrix and returns it. |
| Transform(double, double, out double, out double) | Transforms x and y with the transformation matrix: x1 = Ax + Cy + TX; y1 = Bx + Dy + TY. |
| UnScale(double, double, out double, out double) | Scales back x1 and y1 and returns x and y before the transformation matrix. |
| UnTransform(double, double, out double, out double) | Transforms back x1 and y1 and returns x and y before the transformation matrix. |
See Also
