Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/sample_edges.cpp

@@ -0,0 +1,33 @@
+// 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/.
+#include "sample_edges.h"
+
+IGL_INLINE void igl::sample_edges(
+  const Eigen::MatrixXd & V,
+  const Eigen::MatrixXi & E,
+  const int k,
+  Eigen::MatrixXd & S)
+{
+  using namespace Eigen;
+  // Resize output
+  S.resize(V.rows() + k * E.rows(),V.cols());
+  // Copy V at front of S
+  S.block(0,0,V.rows(),V.cols()) = V;
+
+  // loop over edges
+  for(int i = 0;i<E.rows();i++)
+  {
+    VectorXd tip = V.row(E(i,0));
+    VectorXd tail = V.row(E(i,1));
+    for(int s=0;s<k;s++)
+    {
+      double f = double(s+1)/double(k+1);
+      S.row(V.rows()+k*i+s) = f*tail + (1.0-f)*tip;
+    }
+  }
+}