Method: Magick::Image#composite_affine

Defined in:
ext/RMagick/rmimage.cpp

#composite_affine(source, affine_matrix) ⇒ Magick::Image

Composite the source over the destination image as dictated by the affine transform.

Parameters:

Returns:



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# File 'ext/RMagick/rmimage.cpp', line 3799

VALUE
Image_composite_affine(VALUE self, VALUE source, VALUE affine_matrix)
{
    Image *image, *composite_image, *new_image;
    AffineMatrix affine;
#if defined(IMAGEMAGICK_7)
    ExceptionInfo *exception;
#endif

    image = rm_check_destroyed(self);
    composite_image = rm_check_destroyed(rm_cur_image(source));

    Export_AffineMatrix(&affine, affine_matrix);
    new_image = rm_clone_image(image);

#if defined(IMAGEMAGICK_7)
    exception = AcquireExceptionInfo();
    GVL_STRUCT_TYPE(DrawAffineImage) args = { new_image, composite_image, &affine, exception };
    CALL_FUNC_WITHOUT_GVL(GVL_FUNC(DrawAffineImage), &args);
    rm_check_exception(exception, new_image, DestroyOnError);
    DestroyExceptionInfo(exception);
#else
    GVL_STRUCT_TYPE(DrawAffineImage) args = { new_image, composite_image, &affine };
    CALL_FUNC_WITHOUT_GVL(GVL_FUNC(DrawAffineImage), &args);
    rm_check_image_exception(new_image, DestroyOnError);
#endif

    return rm_image_new(new_image);
}