update bundled_deps

2026-02-06 02:41:52 +03:00 · 2024-11-09 14:05:44 +08:00
parent 17c9bfd127
commit cfc606fea9
1662 changed files with 710 additions and 168 deletions
--- a/bundled_deps/libigl/igl/copyleft/cgal/extract_feature.h
+++ b/bundled_deps/libigl/igl/copyleft/cgal/extract_feature.h
@@ -0,0 +1,90 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2016 Qingnan Zhou <qnzhou@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef IGL_COPYLEFT_CGAL_EXTRACT_FEATURE_H
+#define IGL_COPYLEFT_CGAL_EXTRACT_FEATURE_H
+#include "../../igl_inline.h"
+#include <Eigen/Core>
+#include <vector>
+
+namespace igl
+{
+  namespace copyleft
+  {
+    namespace cgal
+    {
+      // Extract feature edges based on dihedral angle.
+      // Here, dihedral angle is defined as the angle between surface
+      // __normals__ as described in
+      // http://mathworld.wolfram.com/DihedralAngle.html
+      //
+      // Non-manifold and boundary edges are automatically considered as
+      // features.
+      //
+      // Inputs:
+      //   V   #V by 3 array of vertices.
+      //   F   #F by 3 array of faces.
+      //   tol Edges with dihedral angle larger than this are considered
+      //       as features.  Angle is measured in radian.
+      //
+      // Output:
+      //   feature_edges: #E by 2 array of edges.  Each edge satisfies at
+      //      least one of the following criteria:
+      //
+      //      * Edge has dihedral angle larger than tol.
+      //      * Edge is boundary.
+      //      * Edge is non-manifold (i.e. it has more than 2 adjacent
+      //        faces).
+      template <
+        typename DerivedV,
+        typename DerivedF,
+        typename DerivedE>
+      IGL_INLINE void extract_feature(
+            const Eigen::PlainObjectBase<DerivedV>& V,
+            const Eigen::PlainObjectBase<DerivedF>& F,
+            const double tol,
+            Eigen::PlainObjectBase<DerivedE>& feature_edges);
+
+      // Inputs:
+      //   V    #V by 3 array of vertices.
+      //   F    #F by 3 array of faces.
+      //   tol  Edges with dihedral angle larger than this are considered
+      //        as features.  Angle is measured in radian.
+      //   E    #E by 2 array of directed edges.
+      //   uE   #uE by 2 array of undirected edges.
+      //   uE2E #uE list of lists mapping undirected edges to all corresponding
+      //        directed edges.
+      //
+      // Output:
+      //   feature_edges: #E by 2 array of edges.  Each edge satisfies at
+      //      least one of the following criteria:
+      //
+      //      * Edge has dihedral angle larger than tol.
+      //      * Edge is boundary.
+      //      * Edge is non-manifold (i.e. it has more than 2 adjacent
+      //        faces).
+      template <
+        typename DerivedV,
+        typename DerivedF,
+        typename DerivedE>
+      IGL_INLINE void extract_feature(
+            const Eigen::PlainObjectBase<DerivedV>& V,
+            const Eigen::PlainObjectBase<DerivedF>& F,
+            const double tol,
+            const Eigen::PlainObjectBase<DerivedE>& E,
+            const Eigen::PlainObjectBase<DerivedE>& uE,
+            const std::vector<std::vector<typename DerivedE::Scalar> >& uE2E,
+            Eigen::PlainObjectBase<DerivedE>& feature_edges);
+    }
+  }
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "extract_feature.cpp"
+#endif
+#endif