Hull             1882 magick/effect.c       Hull(X[k],Y[k],image->columns,image->rows,pixel,buffer,1);
Hull             1883 magick/effect.c       Hull(-X[k],-Y[k],image->columns,image->rows,pixel,buffer,1);
Hull             1884 magick/effect.c       Hull(-X[k],-Y[k],image->columns,image->rows,pixel,buffer,-1);
Hull             1885 magick/effect.c       Hull(X[k],Y[k],image->columns,image->rows,pixel,buffer,-1);