Method triangle

src/point.rs:75–77

(x: f64, y: f64, size: f32)

    }

    pub fn triangle(x: f64, y: f64, size: f32) -> Self {
        Self::new(x, y, size)
    }

    pub fn filled_circle_world(x: f64, y: f64, size: f64) -> Self {
        Self::new_world(x, y, size)