Factory to build python alpha complex. 3d version of alpha complex. Needs change in doc as alphacomplexdoc.off is a fake 3d off data file

1 files changed, 19 insertions, 55 deletions

diff --git a/src/python/include/Alpha_complex_interface.h b/src/python/include/Alpha_complex_interface.h
index 3ac5db1f..c4b9df4b 100644
--- a/src/python/include/Alpha_complex_interface.h
+++ b/src/python/include/Alpha_complex_interface.h
@@ -11,12 +11,8 @@
 #ifndef INCLUDE_ALPHA_COMPLEX_INTERFACE_H_
 #define INCLUDE_ALPHA_COMPLEX_INTERFACE_H_
 
-#include <gudhi/Simplex_tree.h>
-#include <gudhi/Alpha_complex.h>
-#include <CGAL/Epeck_d.h>
-#include <CGAL/Epick_d.h>
-
-#include <boost/range/adaptor/transformed.hpp>
+#include "Alpha_complex_factory.h"
+#include <gudhi/Alpha_complex_options.h>
 
 #include "Simplex_tree_interface.h"
 
@@ -30,67 +26,35 @@ namespace Gudhi {
 namespace alpha_complex {
 
 class Alpha_complex_interface {
- private:
-  using Exact_kernel = CGAL::Epeck_d<CGAL::Dynamic_dimension_tag>;
-  using Inexact_kernel = CGAL::Epick_d<CGAL::Dynamic_dimension_tag>;
-  using Point_exact_kernel = typename Exact_kernel::Point_d;
-  using Point_inexact_kernel = typename Inexact_kernel::Point_d;
-
-  template <typename CgalPointType>
-  std::vector<double> pt_cgal_to_cython(CgalPointType& point) {
-    std::vector<double> vd;
-    for (auto coord = point.cartesian_begin(); coord != point.cartesian_end(); coord++)
-      vd.push_back(CGAL::to_double(*coord));
-    return vd;
-  }
-
-  template <typename CgalPointType>
-  static CgalPointType pt_cython_to_cgal(std::vector<double> const& vec) {
-    return CgalPointType(vec.size(), vec.begin(), vec.end());
-  }
-
  public:
-  Alpha_complex_interface(const std::vector<std::vector<double>>& points, bool fast_version)
-      : fast_version_(fast_version) {
-    if (fast_version_) {
-      ac_inexact_ptr_ = std::make_unique<Alpha_complex<Inexact_kernel>>(
-          boost::adaptors::transform(points, pt_cython_to_cgal<Point_inexact_kernel>));
+  Alpha_complex_interface(const std::vector<std::vector<double>>& points, bool fast_version, bool exact_version) {
+    if (points[0].size() == 3) {
+      if (fast_version)
+        alpha_ptr_ = std::make_unique<Alphacomplex_3D<Gudhi::alpha_complex::complexity::FAST>>(points);
+      else if (exact_version)
+        alpha_ptr_ = std::make_unique<Alphacomplex_3D<Gudhi::alpha_complex::complexity::EXACT>>(points);
+      else
+        alpha_ptr_ = std::make_unique<Alphacomplex_3D<Gudhi::alpha_complex::complexity::SAFE>>(points);
     } else {
-      ac_exact_ptr_ = std::make_unique<Alpha_complex<Exact_kernel>>(
-          boost::adaptors::transform(points, pt_cython_to_cgal<Point_exact_kernel>));
+      if (fast_version) {
+        alpha_ptr_ = std::make_unique<Inexact_Alphacomplex_dD>(points, exact_version);
+      } else {
+        alpha_ptr_ = std::make_unique<Exact_Alphacomplex_dD>(points, exact_version);
+      }
     }
   }
 
-  Alpha_complex_interface(const std::string& off_file_name, bool fast_version, bool from_file = true)
-      : fast_version_(fast_version) {
-    if (fast_version_)
-      ac_inexact_ptr_ = std::make_unique<Alpha_complex<Inexact_kernel>>(off_file_name);
-    else
-      ac_exact_ptr_ = std::make_unique<Alpha_complex<Exact_kernel>>(off_file_name);
-  }
-
   std::vector<double> get_point(int vh) {
-    if (fast_version_) {
-      Point_inexact_kernel const& point = ac_inexact_ptr_->get_point(vh);
-      return pt_cgal_to_cython(point);
-    } else {
-      Point_exact_kernel const& point = ac_exact_ptr_->get_point(vh);
-      return pt_cgal_to_cython(point);
-    }
+    return alpha_ptr_->get_point(vh);
   }
 
-  void create_simplex_tree(Simplex_tree_interface<>* simplex_tree, double max_alpha_square, bool exact_version,
+  void create_simplex_tree(Simplex_tree_interface<>* simplex_tree, double max_alpha_square,
                            bool default_filtration_value) {
-    if (fast_version_)
-      ac_inexact_ptr_->create_complex(*simplex_tree, max_alpha_square, exact_version, default_filtration_value);
-    else
-      ac_exact_ptr_->create_complex(*simplex_tree, max_alpha_square, exact_version, default_filtration_value);
+      alpha_ptr_->create_simplex_tree(simplex_tree, max_alpha_square, default_filtration_value);
   }
 
  private:
-  bool fast_version_;
-  std::unique_ptr<Alpha_complex<Exact_kernel>> ac_exact_ptr_;
-  std::unique_ptr<Alpha_complex<Inexact_kernel>> ac_inexact_ptr_;
+  std::unique_ptr<Abstract_alpha_complex> alpha_ptr_;
 };
 
 }  // namespace alpha_complex