Function test_triangulate_unit_square

generative/triangulation.rs:206–238

()

    #[test]
    fn test_triangulate_unit_square() {
        let wkt = b"POLYGON((0 0, 0 1, 1 1, 1 0, 0 0))";
        let geometries: Vec<_> = read_wkt_geometries(&wkt[..]).collect();
        let points = flatten_geometries_into_points_ref(geometries.iter());

        let triangulation = triangulate(points).unwrap();

        let triangles: Vec<_> = triangulation.triangles().collect();
        assert_eq!(triangles.len(), 2);
        assert_eq!(
            triangles[0],
            geo::Triangle::new(
                geo::Coord { x: 0., y: 0. },
                geo::Coord { x: 0., y: 1. },
                geo::Coord { x: 1., y: 1. },
            )
        );
        assert_eq!(
            triangles[1],
            geo::Triangle::new(
                geo::Coord { x: 1., y: 1. },
                geo::Coord { x: 1., y: 0. },
                geo::Coord { x: 0., y: 0. },
            )
        );

        assert_eq!(triangulation.lines().count(), 6);

        let wkt = b"POLYGON((1 1, 1 0, 0 0, 0 1, 1 1))"; // same polygon, same winding, different starting point
        let geometries: Vec<_> = read_wkt_geometries(&wkt[..]).collect();
        let hull = triangulation.hull();
        assert_eq!(geo::Geometry::Polygon(hull), geometries[0]);
    }

    #[test]
    fn test_graph() {