update bundled_deps

bundled_deps/libigl/igl/copyleft/progressive_hulls.h

@@ -0,0 +1,43 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2015 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_COPYLEFT_PROGRESSIVE_HULLS_H
+#define IGL_COPYLEFT_PROGRESSIVE_HULLS_H
+#include "../igl_inline.h"
+#include <Eigen/Core>
+
+namespace igl
+{
+  namespace copyleft
+  {
+    // Assumes (V,F) is a closed manifold mesh 
+    // Collapses edges until desired number of faces is achieved but ensures
+    // that new vertices are placed outside all previous meshes as per
+    // "progressive hulls" in "Silhouette clipping" [Sander et al. 2000].
+    //
+    // Inputs:
+    //   V  #V by dim list of vertex positions
+    //   F  #F by 3 list of face indices into V.
+    //   max_m  desired number of output faces
+    // Outputs:
+    //   U  #U by dim list of output vertex posistions (can be same ref as V)
+    //   G  #G by 3 list of output face indices into U (can be same ref as G)
+    //   J  #G list of indices into F of birth faces
+    // Returns true if m was reached (otherwise #G > m)
+    IGL_INLINE bool progressive_hulls(
+      const Eigen::MatrixXd & V,
+      const Eigen::MatrixXi & F,
+      const size_t max_m,
+      Eigen::MatrixXd & U,
+      Eigen::MatrixXi & G,
+      Eigen::VectorXi & J);
+  }
+}
+#ifndef IGL_STATIC_LIBRARY
+#  include "progressive_hulls.cpp"
+#endif
+#endif