update bundled_deps

bundled_deps/libigl/igl/fit_rotations.h

@@ -0,0 +1,60 @@
+// 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_FIT_ROTATIONS_H
+#define IGL_FIT_ROTATIONS_H
+#include "igl_inline.h"
+#include <Eigen/Core>
+
+namespace igl
+{
+  // Known issues: This seems to be implemented in Eigen/Geometry:
+  // Eigen::umeyama
+  //
+  // FIT_ROTATIONS Given an input mesh and new positions find rotations for
+  // every covariance matrix in a stack of covariance matrices
+  // 
+  // Inputs:
+  //   S  nr*dim by dim stack of covariance matrices
+  //   single_precision  whether to use single precision (faster)
+  // Outputs:
+  //   R  dim by dim * nr list of rotations
+  //
+  template <typename DerivedS, typename DerivedD>
+  IGL_INLINE void fit_rotations(
+    const Eigen::PlainObjectBase<DerivedS> & S,
+    const bool single_precision,
+          Eigen::PlainObjectBase<DerivedD> & R);
+  
+  // FIT_ROTATIONS Given an input mesh and new positions find 2D rotations for
+  // every vertex that best maps its one ring to the new one ring
+  // 
+  // Inputs:
+  //   S  nr*dim by dim stack of covariance matrices, third column and every
+  //   third row will be ignored
+  // Outputs:
+  //   R  dim by dim * nr list of rotations, third row and third column of each
+  //   rotation will just be identity
+  //
+  template <typename DerivedS, typename DerivedD>
+  IGL_INLINE void fit_rotations_planar(
+    const Eigen::PlainObjectBase<DerivedS> & S,
+          Eigen::PlainObjectBase<DerivedD> & R);
+#ifdef __SSE__
+  IGL_INLINE void fit_rotations_SSE( const Eigen::MatrixXf & S, Eigen::MatrixXf & R);
+  IGL_INLINE void fit_rotations_SSE( const Eigen::MatrixXd & S, Eigen::MatrixXd & R);
+#endif
+#ifdef __AVX__
+  IGL_INLINE void fit_rotations_AVX( const Eigen::MatrixXf & S, Eigen::MatrixXf & R);
+#endif
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "fit_rotations.cpp"
+#endif
+
+#endif