magickShearImage method

Future<bool> magickShearImage({
  1. required PixelWand background,
  2. required double xShear,
  3. required double yShear,
})

MagickShearImage() slides one edge of an image along the X or Y axis, creating a parallelogram. An X direction shear slides an edge along the X axis, while a Y direction shear slides an edge along the Y axis. The amount of the shear is controlled by a shear angle. For X direction shears, x_shear is measured relative to the Y axis, and similarly, for Y direction shears y_shear is measured relative to the X axis. Empty triangles left over from shearing the image are filled with the background color.

This method runs inside an isolate different from the main isolate.

  • background: the background pixel wand.
  • xShear: the number of degrees to shear the image.
  • yShear: the number of degrees to shear the image.

Implementation

Future<bool> magickShearImage({
  required PixelWand background,
  required double xShear,
  required double yShear,
}) async =>
    await _magickCompute(
      _magickShearImage,
      _MagickShearImageParams(
        _wandPtr.address,
        background._wandPtr.address,
        xShear,
        yShear,
      ),
    );