fn line_to()

in src/ras.rs [357:366]


    fn line_to(&mut self, x: f32, y: f32) {
        let to = AbPoint {
            x: x * self.factor - self.x_min,
            y: self.y_max - y * self.factor,
        };
        if let Some(prev) = self.prev.take() {
            self.ras.draw_line(prev, to);
        }
        self.prev = Some(to);
    }