Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/per_corner_normals.h

@@ -0,0 +1,64 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2013 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_CORNER_NORMALS_H
+#define IGL_PER_CORNER_NORMALS_H
+#include "igl_inline.h"
+#include <Eigen/Core>
+#include <vector>
+
+namespace igl
+{
+  // Compute vertex 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
+  //   corner_threshold  threshold in degrees on sharp angles
+  // Output:
+  //   CN  #F*3 by 3 eigen Matrix of mesh vertex 3D normals, where the normal
+  //     for corner F(i,j) is at CN(i*3+j,:) 
+  template <typename DerivedV, typename DerivedF, typename DerivedCN>
+  IGL_INLINE void per_corner_normals(
+    const Eigen::PlainObjectBase<DerivedV>& V,
+    const Eigen::PlainObjectBase<DerivedF>& F,
+    const double corner_threshold,
+    Eigen::PlainObjectBase<DerivedCN> & CN);
+  // Other Inputs:
+  //   FN  #F by 3 eigen Matrix of face normals
+  template <
+    typename DerivedV, 
+    typename DerivedF, 
+    typename DerivedFN, 
+    typename DerivedCN>
+  IGL_INLINE void per_corner_normals(
+    const Eigen::PlainObjectBase<DerivedV>& V,
+    const Eigen::PlainObjectBase<DerivedF>& F,
+    const Eigen::PlainObjectBase<DerivedFN>& FN,
+    const double corner_threshold,
+    Eigen::PlainObjectBase<DerivedCN> & CN);
+  // Other Inputs:
+  //   VF  map from vertices to list of incident faces
+  template <
+    typename DerivedV, 
+    typename DerivedF, 
+    typename DerivedFN, 
+    typename IndexType,
+    typename DerivedCN>
+  IGL_INLINE void per_corner_normals(
+    const Eigen::PlainObjectBase<DerivedV>& V,
+    const Eigen::PlainObjectBase<DerivedF>& F,
+    const Eigen::PlainObjectBase<DerivedFN>& FN,
+    const std::vector<std::vector<IndexType> >& VF,
+    const double corner_threshold,
+    Eigen::PlainObjectBase<DerivedCN> & CN);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "per_corner_normals.cpp"
+#endif
+
+#endif