Transformation operations

art_vpath_perturb ()

ArtVpath*   art_vpath_perturb               (ArtVpath *src);

Perturbs each of the points by a small random amount. This is helpful for cheating in cases when algorithms haven't attained numerical stability yet.

art_vpath_affine_transform ()

ArtVpath*   art_vpath_affine_transform      (const ArtVpath *src,
                                             const double matrix[6]);

Computes the affine transform of the vpath, using matrix as the transform. matrix is stored in the same format as PostScript, ie. x' = matrix[0] * x + matrix[2] * y + matrix[4] y' = matrix[1] * x + matrix[3] * y + matrix[5]

art_bpath_affine_transform ()

ArtBpath*   art_bpath_affine_transform      (const ArtBpath *src,
                                             const double matrix[6]);

Affine transform the bezpath, returning a newly allocated ArtBpath (allocated using art_alloc()).

Result (x', y') = (matrix[0] * x + matrix[2] * y + matrix[4], matrix[1] * x + matrix[3] * y + matrix[5])