row_to_point.h 1.1 KB

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  1. // This file is part of libigl, a simple c++ geometry processing library.
  2. //
  3. // Copyright (C) 2016 Alec Jacobson <alecjacobson@gmail.com>
  4. //
  5. // This Source Code Form is subject to the terms of the Mozilla Public License
  6. // v. 2.0. If a copy of the MPL was not distributed with this file, You can
  7. // obtain one at http://mozilla.org/MPL/2.0/.
  8. #ifndef IGL_COPYLEFT_CGAL_ROW_TO_POINT_H
  9. #define IGL_COPYLEFT_CGAL_ROW_TO_POINT_H
  10. #include "../../igl_inline.h"
  11. #include <Eigen/Core>
  12. #include <CGAL/Point_2.h>
  13. namespace igl
  14. {
  15. namespace copyleft
  16. {
  17. namespace cgal
  18. {
  19. // Extract a row from V and treat as a 2D cgal point (only first two
  20. // columns of V are used).
  21. //
  22. // Inputs:
  23. // V #V by 2 list of vertex positions
  24. // i row index
  25. // Returns 2D cgal point
  26. template <
  27. typename Kernel,
  28. typename DerivedV>
  29. IGL_INLINE CGAL::Point_2<Kernel> row_to_point(
  30. const Eigen::PlainObjectBase<DerivedV> & V,
  31. const typename DerivedV::Index & i);
  32. }
  33. }
  34. }
  35. #ifndef IGL_STATIC_LIBRARY
  36. # include "row_to_point.cpp"
  37. #endif
  38. #endif