Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/sort_triangles.h

@@ -0,0 +1,44 @@
+// 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_SORT_TRIANGLES_H
+#define IGL_SORT_TRIANGLES_H
+
+#include "igl_inline.h"
+#include <Eigen/Core>
+
+namespace igl
+{
+  // Inputs:
+  //   V  #V by **4** list of homogeneous vertex positions
+  //   F  #F by 3 list of triangle indices
+  //   MV  4 by 4 model view matrix
+  //   P  4 by 4 projection matrix
+  // Outputs:
+  //   FF  #F by 3 list of sorted triangles indices
+  //   I  #F list of sorted indices
+  template <
+    typename DerivedV,
+    typename DerivedF,
+    typename DerivedMV,
+    typename DerivedP,
+    typename DerivedFF,
+    typename DerivedI>
+  IGL_INLINE void sort_triangles(
+    const Eigen::PlainObjectBase<DerivedV> & V,
+    const Eigen::PlainObjectBase<DerivedF> & F,
+    const Eigen::PlainObjectBase<DerivedMV> & MV,
+    const Eigen::PlainObjectBase<DerivedP> & P,
+    Eigen::PlainObjectBase<DerivedFF> & FF,
+    Eigen::PlainObjectBase<DerivedI> & I);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "sort_triangles.cpp"
+#endif
+
+#endif