Method skew

dep/agg/src/agg2d.cpp:356–356

//------------------------------------------------------------------------
void Agg2D::rotate(double angle)          { m_transform *= agg::trans_affine_rotation(angle);   }
void Agg2D::skew(double sx, double sy)    { m_transform *= agg::trans_affine_skewing(sx, sy);   }
void Agg2D::translate(double x, double y) { m_transform *= agg::trans_affine_translation(x, y); }