Method: Magick::Image#affine_transform

Defined in:
ext/RMagick/rmimage.cpp

#affine_transform(affine) ⇒ Magick::Image

Transform an image as dictated by the affine matrix argument.

Parameters:

  • affine (Magick::AffineMatrix) —

    the affine matrix

Returns:



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# File 'ext/RMagick/rmimage.cpp', line 938

VALUE
Image_affine_transform(VALUE self, VALUE affine)
{
    Image *image, *new_image;
    ExceptionInfo *exception;
    AffineMatrix matrix;

    image = rm_check_destroyed(self);

    // Convert Magick::AffineMatrix to AffineMatrix structure.
    Export_AffineMatrix(&matrix, affine);

    exception = AcquireExceptionInfo();
    GVL_STRUCT_TYPE(AffineTransformImage) args = { image, &matrix, exception };
    void *ret = CALL_FUNC_WITHOUT_GVL(GVL_FUNC(AffineTransformImage), &args);
    new_image = reinterpret_cast<decltype(new_image)>(ret);
    rm_check_exception(exception, new_image, DestroyOnError);
    DestroyExceptionInfo(exception);

    return rm_image_new(new_image);
}