ArtVpath* art_vpath_perturb (ArtVpath *src); ArtVpath* art_vpath_affine_transform (const ArtVpath *src, const double matrix); ArtBpath* art_bpath_affine_transform (const ArtBpath *src, const double matrix);
Once vpaths and bpaths are constructed, it is possible to apply a number of transformations to these vector paths: art_vpath_perturb should not be really used by applications (but you might have to use it so...) but art_vpath_affine_transform and art_bpath_affine_transform are both widely used to apply affine transformations.
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.
|src :||Source vpath.|
|Returns :||Newly allocated vpath containing perturbed src.|
Computes the affine transform of the vpath, using matrix as the transform. matrix is stored in the same format as PostScript, ie. x' = matrix * x + matrix * y + matrix y' = matrix * x + matrix * y + matrix
|src :||Source vpath to transform.|
|matrix :||Affine transform.|
|Returns :||the newly allocated vpath resulting from the transform.|
Result (x', y') = (matrix * x + matrix * y + matrix, matrix * x + matrix * y + matrix)
The definition of Affine matrices and the Known Bugs