func (self *Surface) UserToDevice(x, y float64) (x1, y1 float64) {
ux, uy := (*C.double)(&x), (*C.double)(&y)
C.cairo_user_to_device(self.context, ux, uy)
x1, y1 = float64(*ux), float64(*uy)
return
}
func (self *Surface) UserToDevice(x, y float64) (float64, float64) {
C.cairo_user_to_device(self.context, (*C.double)(&x), (*C.double)(&y))
return x, y
}
//UserToDevice takes the point p from user space to the point q in device space
//by multiplication with the current transformation matrix.
//
//Originally cairo_user_to_device.
func (c *Context) UserToDevice(p Point) (q Point) {
x, y := p.c()
C.cairo_user_to_device(c.c, &x, &y)
return cPt(x, y)
}