From e96b1802c28ebdb0a98d41cec16afdaf7599e374 Mon Sep 17 00:00:00 2001
From: Jane Tournois <janetournois@users.noreply.github.com>
Date: Fri, 3 Nov 2023 16:54:35 +0100
Subject: [PATCH] use only const ref to sizing function

---
 .../tetrahedral_adaptive_remeshing_impl.h     | 14 ++------
 .../include/CGAL/tetrahedral_remeshing.h      | 34 ++-----------------
 2 files changed, 5 insertions(+), 43 deletions(-)

diff --git a/Tetrahedral_remeshing/include/CGAL/Tetrahedral_remeshing/internal/tetrahedral_adaptive_remeshing_impl.h b/Tetrahedral_remeshing/include/CGAL/Tetrahedral_remeshing/internal/tetrahedral_adaptive_remeshing_impl.h
index cb1c7a0a0bf..8954f582281 100644
--- a/Tetrahedral_remeshing/include/CGAL/Tetrahedral_remeshing/internal/tetrahedral_adaptive_remeshing_impl.h
+++ b/Tetrahedral_remeshing/include/CGAL/Tetrahedral_remeshing/internal/tetrahedral_adaptive_remeshing_impl.h
@@ -30,8 +30,6 @@
 #include <CGAL/Tetrahedral_remeshing/internal/tetrahedral_remeshing_helpers.h>
 #include <CGAL/Tetrahedral_remeshing/internal/compute_c3t3_statistics.h>
 
-#include <CGAL/Mesh_3/Mesh_sizing_field.h>
-
 #include <optional>
 
 namespace CGAL
@@ -103,7 +101,7 @@ class Adaptive_remesher
 
 private:
   C3t3 m_c3t3;
-  SizingFunction& m_sizing;
+  const SizingFunction& m_sizing;
   const bool m_protect_boundaries;
   CellSelector m_cell_selector;
   Visitor& m_visitor;
@@ -114,7 +112,7 @@ private:
 
 public:
   Adaptive_remesher(Triangulation& tr
-                    , SizingFunction& sizing
+                    , const SizingFunction& sizing
                     , const bool protect_boundaries
                     , EdgeIsConstrainedMap ecmap
                     , FacetIsConstrainedMap fcmap
@@ -143,7 +141,7 @@ public:
   }
 
   Adaptive_remesher(C3t3& c3t3
-                    , SizingFunction& sizing
+                    , const SizingFunction& sizing
                     , const bool protect_boundaries
                     , EdgeIsConstrainedMap ecmap
                     , FacetIsConstrainedMap fcmap
@@ -176,12 +174,6 @@ public:
     return m_c3t3_pbackup != NULL;
   }
 
-  void update_adaptive_mode()
-  {
-    Update_sizing_field<SizingFunction, Tr> update;
-    update(m_sizing, tr());
-  }
-
   void split()
   {
     CGAL_assertion(check_vertex_dimensions());
diff --git a/Tetrahedral_remeshing/include/CGAL/tetrahedral_remeshing.h b/Tetrahedral_remeshing/include/CGAL/tetrahedral_remeshing.h
index 7af6697a1bf..edc6bc06bce 100644
--- a/Tetrahedral_remeshing/include/CGAL/tetrahedral_remeshing.h
+++ b/Tetrahedral_remeshing/include/CGAL/tetrahedral_remeshing.h
@@ -198,7 +198,7 @@ template<typename Traits, typename TDS, typename SLDS,
          typename NamedParameters>
 void tetrahedral_isotropic_remeshing(
   CGAL::Triangulation_3<Traits, TDS, SLDS>& tr,
-  SizingFunction& sizing,
+  const SizingFunction& sizing,
   const NamedParameters& np)
 {
   CGAL_assertion(tr.is_valid());
@@ -254,10 +254,6 @@ void tetrahedral_isotropic_remeshing(
                   , cell_select
                   , visitor);
 
-  bool adaptive = choose_parameter(get_parameter(np, internal_np::adaptive_sizing_field), false);
-  if(adaptive)
-    remesher.update_adaptive_mode();
-
 #ifdef CGAL_TETRAHEDRAL_REMESHING_VERBOSE
   std::cout << "done." << std::endl;
 #endif
@@ -369,7 +365,7 @@ template<typename Tr,
          typename NamedParameters = parameters::Default_named_parameters>
 void tetrahedral_isotropic_remeshing(
   CGAL::Mesh_complex_3_in_triangulation_3<Tr, CornerIndex, CurveIndex>& c3t3,
-  SizingFunction& sizing,
+  const SizingFunction& sizing,
   const NamedParameters& np = parameters::default_values())
 {
   CGAL_assertion(c3t3.triangulation().tds().is_valid());
@@ -447,32 +443,6 @@ void tetrahedral_isotropic_remeshing(
 #endif
 }
 
-/*!
-* \ingroup PkgTetrahedralRemeshingRef
-* remeshes a tetrahedral mesh with an adaptive si
-*/
-template<typename Traits, typename TDS, typename SLDS,
-  typename NamedParameters = parameters::Default_named_parameters>
-void tetrahedral_adaptive_remeshing(
-  CGAL::Triangulation_3<Traits, TDS, SLDS>& tr,
-  const NamedParameters& np = parameters::default_values())
-{
-  using Tr = CGAL::Triangulation_3<Traits, TDS, SLDS>;
-  CGAL::Mesh_3::Mesh_sizing_field<Tr> sizing(tr);
-  tetrahedral_isotropic_remeshing(tr, sizing, np.adaptive_sizing_field(true));
-}
-
-template<typename Tr,
-         typename CornerIndex, typename CurveIndex,
-         typename NamedParameters = parameters::Default_named_parameters>
-void tetrahedral_adaptive_remeshing(
-  CGAL::Mesh_complex_3_in_triangulation_3<Tr, CornerIndex, CurveIndex>& c3t3,
-  const NamedParameters& np = parameters::default_values())
-{
-  CGAL::Mesh_3::Mesh_sizing_field<Tr> sizing(c3t3.triangulation());
-  tetrahedral_isotropic_remeshing(c3t3, sizing, np.adaptive_sizing_field(true));
-}
-
 }//end namespace CGAL
 
 #endif //TETRAHEDRAL_REMESHING_H