update bundled_deps

bundled_deps/libigl/igl/per_edge_normals.h

@@ -0,0 +1,81 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2014 Alec Jacobson <alecjacobson@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_PER_EDGE_NORMALS_H
+#define IGL_PER_EDGE_NORMALS_H
+#include "igl_inline.h"
+#include <Eigen/Core>
+namespace igl
+{
+  enum PerEdgeNormalsWeightingType
+  {
+    // Incident face normals have uniform influence on edge normal
+    PER_EDGE_NORMALS_WEIGHTING_TYPE_UNIFORM = 0,
+    // Incident face normals are averaged weighted by area
+    PER_EDGE_NORMALS_WEIGHTING_TYPE_AREA = 1,
+    // Area weights
+    PER_EDGE_NORMALS_WEIGHTING_TYPE_DEFAULT = 2,
+    NUM_PER_EDGE_NORMALS_WEIGHTING_TYPE = 3
+  };
+  // Compute face normals via vertex position list, face list
+  // Inputs:
+  //   V  #V by 3 eigen Matrix of mesh vertex 3D positions
+  //   F  #F by 3 eigen Matrix of face (triangle) indices
+  //   weight  weighting type
+  //   FN  #F by 3 matrix of 3D face normals per face
+  // Output:
+  //   N  #2 by 3 matrix of mesh edge 3D normals per row
+  //   E  #E by 2 matrix of edge indices per row
+  //   EMAP  #E by 1 matrix of indices from all edges to E
+  //
+  template <
+    typename DerivedV, 
+    typename DerivedF, 
+    typename DerivedFN,
+    typename DerivedN,
+    typename DerivedE,
+    typename DerivedEMAP>
+  IGL_INLINE void per_edge_normals(
+    const Eigen::MatrixBase<DerivedV>& V,
+    const Eigen::MatrixBase<DerivedF>& F,
+    const PerEdgeNormalsWeightingType weight,
+    const Eigen::MatrixBase<DerivedFN>& FN,
+    Eigen::PlainObjectBase<DerivedN> & N,
+    Eigen::PlainObjectBase<DerivedE> & E,
+    Eigen::PlainObjectBase<DerivedEMAP> & EMAP);
+  template <
+    typename DerivedV, 
+    typename DerivedF, 
+    typename DerivedN,
+    typename DerivedE,
+    typename DerivedEMAP>
+  IGL_INLINE void per_edge_normals(
+    const Eigen::MatrixBase<DerivedV>& V,
+    const Eigen::MatrixBase<DerivedF>& F,
+    const PerEdgeNormalsWeightingType weight,
+    Eigen::PlainObjectBase<DerivedN> & N,
+    Eigen::PlainObjectBase<DerivedE> & E,
+    Eigen::PlainObjectBase<DerivedEMAP> & EMAP);
+  template <
+    typename DerivedV, 
+    typename DerivedF, 
+    typename DerivedN,
+    typename DerivedE,
+    typename DerivedEMAP>
+  IGL_INLINE void per_edge_normals(
+    const Eigen::MatrixBase<DerivedV>& V,
+    const Eigen::MatrixBase<DerivedF>& F,
+    Eigen::PlainObjectBase<DerivedN> & N,
+    Eigen::PlainObjectBase<DerivedE> & E,
+    Eigen::PlainObjectBase<DerivedEMAP> & EMAP);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "per_edge_normals.cpp"
+#endif
+
+#endif