init(a:b:c:d:tx:ty:vx:vy:v:)
Creates a projective-transformation structure from the specified single-precision values.
Declaration
init(a: Float, b: Float, c: Float, d: Float, tx: Float, ty: Float, vx: Float, vy: Float, v: Float)Parameters
- a:
The top-left cell in the 3 x 3 transformation matrix.
- b:
The top-middle cell in the 3 x 3 transformation matrix.
- c:
The middle-left cell in the 3 x 3 transformation matrix.
- d:
The middle-middle cell in the 3 x 3 transformation matrix.
- tx:
The x-coordinate translation.
- ty:
The y-coordinate translation.
- vx:
The x-component of the projective vector.
- vy:
The y-component of the projective vector.
- v:
The homogeneous scale factor.