class Magick::RVG::Utility::GraphicContext

def affine(sx, rx, ry, sy, tx, ty)
  sx, rx, ry, sy, tx, ty = Magick::RVG.convert_to_float(sx, rx, ry, sy, tx, ty)
  @gc.affine(sx, rx, ry, sy, tx, ty)
  @text_attrs.set_affine(sx, rx, ry, sy, tx, ty)
  nil
end