Kernel: pole-free six-patch spheres; vendored truck-shapeops with robust meshing and nearest-parameter loop projection (sphere and box booleans work); least-squares sphere classification
Oracle: 25/29 (14 and 15 now match Fusion). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
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bherbruckandClaude Opus 5.5 committed
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use super::*;
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use shell::ShellCondition;
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use truck_geometry::prelude::*;
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use truck_topology::Vertex;
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const TOL: f64 = 0.05;
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fn line(v0: &Vertex<Point3>, v1: &Vertex<Point3>) -> Edge<Point3, BSplineCurve<Point3>> {
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let curve = BSplineCurve::new(KnotVec::bezier_knot(1), vec![v0.point(), v1.point()]);
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Edge::new(v0, v1, curve)
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}
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fn parabola(
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v0: &Vertex<Point3>,
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v1: &Vertex<Point3>,
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pt: Point3,
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) -> Edge<Point3, BSplineCurve<Point3>> {
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let curve = BSplineCurve::new(KnotVec::bezier_knot(2), vec![v0.point(), pt, v1.point()]);
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Edge::new(v0, v1, curve)
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}
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#[test]
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fn divide_plane_test() {
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let v = Vertex::news([
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Point3::new(0.0, 0.0, 0.0),
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Point3::new(0.0, 4.0, 0.0),
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Point3::new(-1.0, 1.0, 0.0),
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Point3::new(-1.0, 3.0, 0.0),
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Point3::new(1.0, 1.0, 0.0),
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Point3::new(1.0, 3.0, 0.0),
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]);
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let edge = vec![
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parabola(&v[0], &v[1], Point3::new(-4.0, 2.0, 0.0)),
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parabola(&v[0], &v[1], Point3::new(4.0, 2.0, 0.0)),
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line(&v[0], &v[1]),
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parabola(&v[2], &v[3], Point3::new(-3.0, 2.0, 0.0)),
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parabola(&v[2], &v[3], Point3::new(-1.0, 2.0, 0.0)),
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parabola(&v[4], &v[5], Point3::new(1.0, 2.0, 0.0)),
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parabola(&v[4], &v[5], Point3::new(3.0, 2.0, 0.0)),
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];
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let wire: Vec<Wire<_, _>> = vec![
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vec![edge[1].clone(), edge[0].inverse()].into(),
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vec![edge[2].clone(), edge[0].inverse()].into(),
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vec![edge[1].clone(), edge[2].inverse()].into(),
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vec![edge[3].clone(), edge[4].inverse()].into(),
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vec![edge[5].clone(), edge[6].inverse()].into(),
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];
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let face = Face::new(
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vec![wire[0].clone(), wire[3].clone(), wire[4].clone()],
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Plane::new(
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Point3::origin(),
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Point3::new(1.0, 0.0, 0.0),
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Point3::new(0.0, 1.0, 0.0),
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),
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);
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let loops: Loops<_, _> = vec![
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BoundaryWire::new(wire[1].clone(), ShapesOpStatus::Or),
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BoundaryWire::new(wire[2].clone(), ShapesOpStatus::And),
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BoundaryWire::new(wire[3].clone(), ShapesOpStatus::Unknown),
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BoundaryWire::new(wire[4].clone(), ShapesOpStatus::Unknown),
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]
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.into_iter()
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.collect();
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let res = divide_one_face(&face, &loops, 0.01).unwrap();
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assert_eq!(res.len(), 2);
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let (mut or, mut and) = (true, true);
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for (face, status) in res {
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let bdd = face.absolute_boundaries();
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match status {
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ShapesOpStatus::Or => {
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assert_eq!(bdd.len(), 2);
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assert!(bdd[0] == wire[1] || bdd[0] == wire[3]);
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assert!(bdd[1] == wire[1] || bdd[1] == wire[3]);
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assert_ne!(bdd[0], bdd[1]);
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assert!(or);
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or = false;
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}
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ShapesOpStatus::And => {
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assert_eq!(bdd.len(), 2);
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assert!(bdd[0] == wire[2] || bdd[0] == wire[4]);
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assert!(bdd[1] == wire[2] || bdd[1] == wire[4]);
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assert_ne!(bdd[0], bdd[1]);
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assert!(and);
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and = false;
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}
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_ => panic!("There must be no unknown!"),
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}
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}
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}
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type AlternativeIntersection = crate::alternative::Alternative<
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NurbsCurve<Vector4>,
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IntersectionCurve<PolylineCurve<Point3>, AlternativeSurface>,
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>;
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type AlternativeSurface = crate::alternative::Alternative<BSplineSurface<Point3>, Plane>;
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crate::impl_from!(
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NurbsCurve<Vector4>,
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IntersectionCurve<PolylineCurve<Point3>, AlternativeSurface>
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);
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crate::impl_from!(BSplineSurface<Point3>, Plane);
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fn parabola_surfaces() -> (AlternativeSurface, AlternativeSurface) {
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// define surfaces
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#[rustfmt::skip]
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let ctrl0 = vec![
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vec![Point3::new(-1.0, -1.0, 3.0), Point3::new(-1.0, 0.0, -1.0), Point3::new(-1.0, 1.0, 3.0)],
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vec![Point3::new(0.0, -1.0, -1.0), Point3::new(0.0, 0.0, -5.0), Point3::new(0.0, 1.0, -1.0)],
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vec![Point3::new(1.0, -1.0, 3.0), Point3::new(1.0, 0.0, -1.0), Point3::new(1.0, 1.0, 3.0)],
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];
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#[rustfmt::skip]
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let ctrl1 = vec![
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vec![Point3::new(-1.0, -1.0, -3.0), Point3::new(-1.0, 0.0, 1.0), Point3::new(-1.0, 1.0, -3.0)],
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vec![Point3::new(0.0, -1.0, 1.0), Point3::new(0.0, 0.0, 5.0), Point3::new(0.0, 1.0, 1.0)],
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vec![Point3::new(1.0, -1.0, -3.0), Point3::new(1.0, 0.0, 1.0), Point3::new(1.0, 1.0, -3.0)],
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];
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(
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BSplineSurface::new((KnotVec::bezier_knot(2), KnotVec::bezier_knot(2)), ctrl0).into(),
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BSplineSurface::new((KnotVec::bezier_knot(2), KnotVec::bezier_knot(2)), ctrl1).into(),
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)
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}
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#[test]
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fn independent_intersection() {
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// prepare geoetries
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let arc00: AlternativeIntersection = NurbsCurve::new(BSplineCurve::new(
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KnotVec::bezier_knot(2),
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vec![
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Vector4::new(1.0, 0.0, 1.0, 1.0),
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Vector4::new(0.0, 1.0, 0.0, 0.0),
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Vector4::new(-1.0, 0.0, 1.0, 1.0),
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],
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))
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.into();
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let arc01: AlternativeIntersection = NurbsCurve::new(BSplineCurve::new(
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KnotVec::bezier_knot(2),
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vec![
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Vector4::new(-1.0, 0.0, 1.0, 1.0),
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Vector4::new(0.0, -1.0, 0.0, 0.0),
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Vector4::new(1.0, 0.0, 1.0, 1.0),
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],
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))
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.into();
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let arc10: AlternativeIntersection = NurbsCurve::new(BSplineCurve::new(
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KnotVec::bezier_knot(2),
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vec![
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Vector4::new(1.0, 0.0, -1.0, 1.0),
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Vector4::new(0.0, 1.0, 0.0, 0.0),
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Vector4::new(-1.0, 0.0, -1.0, 1.0),
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],
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))
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.into();
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let arc11: AlternativeIntersection = NurbsCurve::new(BSplineCurve::new(
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KnotVec::bezier_knot(2),
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vec![
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Vector4::new(-1.0, 0.0, -1.0, 1.0),
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Vector4::new(0.0, -1.0, 0.0, 0.0),
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Vector4::new(1.0, 0.0, -1.0, 1.0),
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],
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))
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.into();
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let (surface0, surface1) = parabola_surfaces();
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let plane0: AlternativeSurface = Plane::new(
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Point3::new(0.0, 0.0, 1.0),
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Point3::new(1.0, 0.0, 1.0),
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Point3::new(0.0, 1.0, 1.0),
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)
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.into();
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let plane1: AlternativeSurface = Plane::new(
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Point3::new(0.0, 0.0, -1.0),
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Point3::new(1.0, 0.0, -1.0),
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Point3::new(0.0, 1.0, -1.0),
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)
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.into();
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// prepare topologies
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let v00 = Vertex::new(Point3::new(1.0, 0.0, 1.0));
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let v01 = Vertex::new(Point3::new(-1.0, 0.0, 1.0));
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let v10 = Vertex::new(Point3::new(1.0, 0.0, -1.0));
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let v11 = Vertex::new(Point3::new(-1.0, 0.0, -1.0));
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let wire0: Wire<_, _> = vec![Edge::new(&v00, &v01, arc00), Edge::new(&v01, &v00, arc01)].into();
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let wire1: Wire<_, _> = vec![Edge::new(&v10, &v11, arc10), Edge::new(&v11, &v10, arc11)].into();
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let shell0: Shell<_, _, _> = vec![
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Face::new(vec![wire0.clone()], plane0),
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Face::new(vec![wire0], surface0).inverse(),
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]
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.into();
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assert_eq!(shell0.shell_condition(), ShellCondition::Closed);
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let shell1: Shell<_, _, _> = vec![
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Face::new(vec![wire1.clone()], plane1).inverse(),
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Face::new(vec![wire1], surface1),
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]
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.into();
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assert_eq!(shell1.shell_condition(), ShellCondition::Closed);
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let poly_shell0 = shell0.triangulation(TOL);
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let poly_shell1 = shell1.triangulation(TOL);
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let LoopsStoreQuadruple {
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geom_loops_store0: loops_store0,
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geom_loops_store1: loops_store1,
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..
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} = create_loops_stores(&shell0, &poly_shell0, &shell1, &poly_shell1, TOL).unwrap();
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let [and0, or0, unknown0] = divide_faces(&shell0, &loops_store0, TOL)
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.unwrap()
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.and_or_unknown();
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let [and1, or1, unknown1] = divide_faces(&shell1, &loops_store1, TOL)
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.unwrap()
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.and_or_unknown();
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assert_eq!(and0.len(), 1);
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assert_eq!(or0.len(), 1);
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assert_eq!(unknown0.len(), 1);
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assert_eq!(and1.len(), 1);
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assert_eq!(or1.len(), 1);
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assert_eq!(unknown1.len(), 1);
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match unknown0[0].surface() {
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AlternativeSurface::FirstType(_) => panic!("This face must plane!"),
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AlternativeSurface::SecondType(_) => {}
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}
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match unknown1[0].surface() {
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AlternativeSurface::FirstType(_) => panic!("This face must plane!"),
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AlternativeSurface::SecondType(_) => {}
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}
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let and_shell: Shell<_, _, _> = vec![and0[0].clone(), and1[0].clone()].into();
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assert_eq!(and_shell.shell_condition(), ShellCondition::Closed);
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}
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