S or /
skia matrix

SourceClass Matrix

from skia import Matrix
class Matrix:

Methods§

def get(self, /, row: int, col: int) -> float§
Sourcedef is_identity(self, /) -> bool§

Returns true if the matrix is identity. The identity matrix is:

Sourcedef map_point(self, /, x: float, y: float) -> tuple[float, float]§

Returns the point multiplied by the matrix. Given:

the result is computed as:

Sourcedef post_rotate(self, /, x: float, y: float, degs: float) -> None§

Sets the matrix to a matrix constructed from rotating by degrees about the pivot point pivot, multiplied by the matrix. This can be thought of as rotating about a pivot point after applying the matrix.

Positive degrees rotates clockwise.

Given:

where

sets the matrix to:

Sourcedef post_scale(self, /, sx: float, sy: float) -> None§

Sets the matrix to a matrix constructed from scaling by (sx, sy) about the pivot point pivot, multiplied by the matrix. This can be thought of as scaling about a pivot point after applying the matrix.

Given:

where

sets the matrix to:

  • sx horizontal scale factor
  • sy vertical scale factor
Sourcedef post_translate(self, /, tx: float, ty: float) -> None§

Sets the matrix to a matrix constructed from translation delta multiplied by the matrix. This can be thought of as moving the point to be mapped after applying the matrix.

Given:

sets the matrix to:

Sourcedef pre_rotate(self, /, x: float, y: float, degs: float) -> None§

Sets the matrix to the matrix multiplied by a matrix constructed from rotating by degrees about the pivot point pivot. This can be thought of as rotating about a pivot point before applying the matrix.

Positive degrees rotates clockwise.

Given:

where

sets the matrix to:

Sourcedef pre_scale(self, /, sx: float, sy: float) -> None§

Sets the matrix to the matrix multiplied by a matrix constructed from scaling by (sx, sy) about the pivot point pivot. This can be thought of as scaling about a pivot point before applying the matrix.

Given:

where

sets the matrix to:

  • sx horizontal scale factor
  • sy vertical scale factor
Sourcedef pre_translate(self, /, tx: float, ty: float) -> None§

Sets the matrix to the matrix multiplied by a matrix constructed from translation delta. This can be thought of as moving the point to be mapped before applying the matrix.

Given:

sets the matrix to:

Sourcedef set_all(self, /, a1: float, a2: float, a3: float, b1: float, b2: float, b3: float, c1: float, c2: float, c3: float) -> None§

Sets all values from parameters. Sets the matrix to:

Sourcedef set_identity(self, /) -> None§

Sets the matrix to identity, which has no effect on mapped points. Sets the matrix to:

Also called skia.Matrix.reset(); use the one that provides better inline documentation.

Sourcedef set_rotate(self, /, x: float, y: float, degs: float) -> None§

Sets the matrix to rotate by degrees about a pivot point at pivot. The pivot point is unchanged when mapped with the matrix.

Positive degrees rotates clockwise.

Sourcedef set_scale(self, /, sx: float, sy: float) -> None§

Sets the matrix to scale by (sx, sy), about a pivot point at pivot. The pivot point is unchanged when mapped with the matrix.

  • sx horizontal scale factor
  • sy vertical scale factor
Sourcedef set_translate(self, /, tx: float, ty: float) -> None§

Sets the matrix to translate by v.