From 84917c12834d8096127112b35e7fe4de7b145ba8 Mon Sep 17 00:00:00 2001
From: Marius Kintel <marius@kintel.net>
Date: Mon, 26 Feb 2024 16:56:01 -0500
Subject: [PATCH] WIP: Directly create Manifold from PolySet before attempting
 repair

---
 src/geometry/manifold/manifoldutils.cc | 69 +++++++++++++-------------
 1 file changed, 35 insertions(+), 34 deletions(-)

diff --git a/src/geometry/manifold/manifoldutils.cc b/src/geometry/manifold/manifoldutils.cc
index a47bb316b7..c982d84ada 100644
--- a/src/geometry/manifold/manifoldutils.cc
+++ b/src/geometry/manifold/manifoldutils.cc
@@ -149,44 +149,45 @@ std::shared_ptr<const ManifoldGeometry> createManifoldFromPolySet(const PolySet&
   LOG("Warning: [manifold] PolySet -> Manifold conversion failed: %1$s\n"
       "Trying to repair and reconstruct mesh",
       ManifoldUtils::statusToString(mani->Status()));
-{
-#ifdef ENABLE_CGAL
-  PolySet psq(ps);
-  std::vector<Vector3d> points3d;
-  psq.quantizeVertices(&points3d);
-  auto ps_tri = PolySetUtils::tessellate_faces(psq);
-  
-  CGAL_DoubleMesh m;
-
-  if (ps_tri->is_convex()) {
-    using K = CGAL::Epick;
-    // Collect point cloud
-    std::vector<K::Point_3> points(points3d.size());
-    for (size_t i = 0, n = points3d.size(); i < n; i++) {
-      points[i] = CGALUtils::vector_convert<K::Point_3>(points3d[i]);
+  {
+  #ifdef ENABLE_CGAL
+    PolySet psq(ps);
+    std::vector<Vector3d> points3d;
+    psq.quantizeVertices(&points3d);
+    auto ps_tri = PolySetUtils::tessellate_faces(psq);
+    
+    CGAL_DoubleMesh m;
+
+    if (ps_tri->is_convex()) {
+      using K = CGAL::Epick;
+      // Collect point cloud
+      std::vector<K::Point_3> points(points3d.size());
+      for (size_t i = 0, n = points3d.size(); i < n; i++) {
+        points[i] = CGALUtils::vector_convert<K::Point_3>(points3d[i]);
+      }
+      if (points.size() <= 3) return std::make_shared<ManifoldGeometry>();
+
+      // Apply hull
+      CGAL::Surface_mesh<CGAL::Point_3<K>> r;
+      CGAL::convex_hull_3(points.begin(), points.end(), r);
+      CGALUtils::copyMesh(r, m);
+    } else {
+      CGALUtils::createMeshFromPolySet(*ps_tri, m);
     }
-    if (points.size() <= 3) return std::make_shared<ManifoldGeometry>();
-
-    // Apply hull
-    CGAL::Surface_mesh<CGAL::Point_3<K>> r;
-    CGAL::convex_hull_3(points.begin(), points.end(), r);
-    CGALUtils::copyMesh(r, m);
-  } else {
-    CGALUtils::createMeshFromPolySet(*ps_tri, m);
-  }
 
-  if (!ps_tri->is_convex()) {
-    if (CGALUtils::isClosed(m)) {
-      CGALUtils::orientToBoundAVolume(m);
-    } else {
-      LOG(message_group::Error, "[manifold] Input mesh is not closed!");
+    if (!ps_tri->is_convex()) {
+      if (CGALUtils::isClosed(m)) {
+        CGALUtils::orientToBoundAVolume(m);
+      } else {
+        LOG(message_group::Error, "[manifold] Input mesh is not closed!");
+      }
     }
-  }
 
-  return createManifoldFromSurfaceMesh(m);
-#else
-  return std::make_shared<ManifoldGeometry>();
-#endif
+    return createManifoldFromSurfaceMesh(m);
+  #else
+    return std::make_shared<ManifoldGeometry>();
+  #endif
+  }
 }
 
 std::shared_ptr<const ManifoldGeometry> createManifoldFromGeometry(const std::shared_ptr<const Geometry>& geom) {