Stubs for the new decimater

src/decimate/hausdorff.rs

@@ -0,0 +1,51 @@
+use super::Decimater;
+use crate::{Adaptor, Error, HasTopology, PolyMeshT, FH, HH, VH};
+
+pub struct HausdorffDecimater<A>
+where
+    A: Adaptor<3>,
+{
+    ptbuf: Vec<A::Vector>,
+    fpoints: Vec<Vec<A::Vector>>,
+    max_tol: A::Scalar,
+}
+
+impl<A> HausdorffDecimater<A>
+where
+    A: Adaptor<3>,
+{
+    pub fn new(mesh: &PolyMeshT<3, A>, max_tol: A::Scalar) -> Self {
+        HausdorffDecimater {
+            ptbuf: Vec::with_capacity(mesh.num_vertices()),
+            fpoints: vec![Vec::new(); mesh.num_faces()],
+            max_tol,
+        }
+    }
+}
+
+impl<A> Decimater<PolyMeshT<3, A>> for HausdorffDecimater<A>
+where
+    A: Adaptor<3>,
+    A::Scalar: PartialOrd,
+{
+    type Cost = A::Scalar;
+
+    fn collapse_cost(&self, mesh: &PolyMeshT<3, A>, h: HH) -> Option<Self::Cost> {
+        todo!()
+    }
+
+    fn before_collapse(&mut self, mesh: &PolyMeshT<3, A>, h: HH) -> Result<(), Error> {
+        Ok(()) // Nothing to do.
+    }
+
+    fn after_collapse(&mut self, mesh: &PolyMeshT<3, A>, v: VH) -> Result<(), Error> {
+        todo!()
+    }
+}
+
+fn triangle_dist_sq<A>(p: &A::Vector, a: &A::Vector, b: &A::Vector, c: &A::Vector) -> A::Scalar
+where
+    A: Adaptor<3>,
+{
+    todo!("Implement point to triangle squared distance");
+}

src/decimate/mod.rs

@@ -34,6 +34,7 @@ Out of the box, this module also provides the following implementations of
 */
 
 pub mod edge_length;
+pub mod hausdorff;
 pub mod quadric;
 
 use crate::Queue;

src/lib.rs

@@ -148,12 +148,12 @@ pub mod use_glam;
 mod subdiv;
 
 #[cfg(feature = "decimate")]
-pub mod decimate;
+mod decimate;
 
 #[cfg(feature = "decimate")]
 pub use decimate::{
-    edge_length::EdgeLengthDecimater, quadric::Quadric, quadric::QuadricDecimater,
-    quadric::QuadricType, Decimater, HasDecimation,
+    edge_length::EdgeLengthDecimater, hausdorff::HausdorffDecimater, quadric::Quadric,
+    quadric::QuadricDecimater, quadric::QuadricType, Decimater, HasDecimation,
 };
 
 pub use edit::EditableTopology;