Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/delaunay_triangulation.h

@@ -0,0 +1,52 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2016 Qingan 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_DELAUNAY_TRIANGULATION_H
+#define IGL_DELAUNAY_TRIANGULATION_H
+
+#include "igl_inline.h"
+#include <Eigen/Core>
+
+namespace igl
+{
+  // Given a set of points in 2D, return a Delaunay triangulation of these
+  // points.
+  //
+  // Inputs:
+  //   V  #V by 2 list of vertex positions
+  //   orient2D  A functor such that orient2D(pa, pb, pc) returns
+  //               1 if pa,pb,pc forms a conterclockwise triangle.
+  //              -1 if pa,pb,pc forms a clockwise triangle.
+  //               0 if pa,pb,pc are collinear.
+  //              where the argument pa,pb,pc are of type Scalar[2].
+  //   incircle  A functor such that incircle(pa, pb, pc, pd) returns
+  //               1 if pd is on the positive size of circumcirle of (pa,pb,pc)
+  //              -1 if pd is on the positive size of circumcirle of (pa,pb,pc)
+  //               0 if pd is cocircular with pa, pb, pc.
+  // Outputs:
+  //   F  #F by 3 of faces in Delaunay triangulation.
+  template<
+    typename DerivedV,
+    typename Orient2D,
+    typename InCircle,
+    typename DerivedF
+    >
+  IGL_INLINE void delaunay_triangulation(
+      const Eigen::PlainObjectBase<DerivedV>& V,
+      Orient2D orient2D,
+      InCircle incircle,
+      Eigen::PlainObjectBase<DerivedF>& F);
+}
+
+
+
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "delaunay_triangulation.cpp"
+#endif
+#endif