Method draw

src/radar.rs:40–56

(&self, ctx: &C, percent: f64, highlight: bool)

    C: CanvasContext<Pattern>,
{
    fn draw(&self, ctx: &C, percent: f64, highlight: bool) {
        let r = lerp(self.old_radius, self.radius, percent);
        let a = lerp(self.old_angle, self.angle, percent);
        let pr = lerp(self.old_point_radius, self.point_radius, percent);
        let p = utils::polar2cartesian(&self.center, r, a);
        if highlight {
            ctx.set_fill_color(self.highlight_color);
            ctx.begin_path();
            ctx.arc(p.x, p.y, 2. * pr, 0., TAU, false);
            ctx.fill();
        }
        ctx.set_fill_color(self.color);
        ctx.begin_path();
        ctx.arc(p.x, p.y, pr, 0., TAU, false);
        ctx.fill();
        ctx.stroke();
    }
}

impl<D> Entity for PolarPoint<D> {