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Merge pull request dealii#13932 from luca-heltai/cgal-move_implementa…
…tion_implicit_function Move implementation of implicit_function() into .cc file
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// --------------------------------------------------------------------- | ||
// | ||
// Copyright (C) 2022 by the deal.II authors | ||
// | ||
// This file is part of the deal.II library. | ||
// | ||
// The deal.II library is free software; you can use it, redistribute | ||
// it, and/or modify it under the terms of the GNU Lesser General | ||
// Public License as published by the Free Software Foundation; either | ||
// version 2.1 of the License, or (at your option) any later version. | ||
// The full text of the license can be found in the file LICENSE.md at | ||
// the top level directory of deal.II. | ||
// | ||
// --------------------------------------------------------------------- | ||
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#ifndef dealii_cgal_additional_data_h | ||
#define dealii_cgal_additional_data_h | ||
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#include <deal.II/base/config.h> | ||
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#ifdef DEAL_II_WITH_CGAL | ||
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# include <CGAL/Mesh_facet_topology.h> | ||
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DEAL_II_NAMESPACE_OPEN | ||
namespace CGALWrappers | ||
{ | ||
enum class FacetTopology | ||
{ | ||
/** | ||
* Each vertex of the facet have to be on the surface, on a curve, or on a | ||
* corner. | ||
*/ | ||
facet_vertices_on_surface = CGAL::FACET_VERTICES_ON_SURFACE, | ||
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/** | ||
* The three vertices of a facet belonging to a surface patch s have to be | ||
* on the same surface patch s, on a curve or on a corner. | ||
*/ | ||
facet_vertices_on_same_surface_patch = | ||
CGAL::FACET_VERTICES_ON_SAME_SURFACE_PATCH, | ||
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/** | ||
* The three vertices of a facet belonging to a surface patch s have to be | ||
* on the same surface patch s, or on a curve incident to the surface patch | ||
* s or on a corner incident to the surface patch s. | ||
*/ | ||
facet_vertices_on_same_surface_patch_with_adjacency_check = | ||
CGAL::FACET_VERTICES_ON_SAME_SURFACE_PATCH_WITH_ADJACENCY_CHECK, | ||
}; | ||
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/** | ||
* Struct that must be used to pass additional | ||
* arguments to the CGAL::Mesh_criteria_3 class (see | ||
* https://doc.cgal.org/latest/Mesh_3/index.html for more information.) | ||
* | ||
* The arguments allow for fine control on the size, quality, and distribution | ||
* of the cells of the final triangulation. CGAL uses Boost named parameters | ||
* for these arguments in dimension three, i.e., they must be specified with | ||
* the syntax `CGAL::parameters::parameter_name=parameter_value`, irrespective | ||
* of their order. Accepted parameters are: | ||
* | ||
* - `CGAL::parameters::edge_size`: a constant | ||
* providing a uniform upper bound for the lengths of | ||
* curve edges. This parameter has to be set to a positive value when | ||
* 1-dimensional features protection is used. | ||
* - `CGAL::parameters::facet_angle`: a lower bound for the angles (in | ||
* degrees) of the surface mesh facets. | ||
* - `CGAL::parameters::facet_size`: a constant | ||
* describing a uniform upper bound for the radii | ||
* of the surface Delaunay balls. | ||
* - `CGAL::parameters::facet_distance`: a constant | ||
* describing a uniform upper bound for the distance | ||
* between the facet circumcenter and the center of its surface Delaunay ball. | ||
* - `CGAL::parameters::facet_topology`: the set of topological constraints | ||
* which have to be verified by each surface facet. The default value is | ||
* `CGAL::FACET_VERTICES_ON_SURFACE`. See the enum @p FacetToplogy CGAL::Mesh_facet_topology manual | ||
* page to get all possible values. | ||
* - `CGAL::parameters::cell_radius_edge_ratio`: an upper bound for the | ||
* radius-edge ratio of the mesh tetrahedra. | ||
* - `CGAL::parameters::cell_size`: a constant | ||
* describing a uniform upper bound for the | ||
* circumradii of the mesh tetrahedra. | ||
* | ||
* @note This struct must be instantiated with `dim=3`. | ||
*/ | ||
template <int dim> | ||
struct AdditionalData | ||
{ | ||
/** | ||
* Uniform upper bound for the lengths of curve edges. | ||
* This parameter has to be set to a positive value when1-dimensional | ||
* features protection is used. | ||
*/ | ||
double edge_size; | ||
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/** | ||
* Lower bound for the angles (in degrees) of the surface mesh facets. | ||
*/ | ||
double facet_angle; | ||
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/** | ||
* Uniform upper bound for the radii of the surface Delaunay balls. | ||
*/ | ||
double facet_size; | ||
/** | ||
* Uniform upper bound for the distance between the facet circumcenter and | ||
* the center of its surface Delaunay ball. | ||
*/ | ||
double facet_distance; | ||
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/** | ||
* Set of topological constraints which have to be verified by each surface | ||
* facet. | ||
*/ | ||
FacetTopology facet_topology; | ||
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/** | ||
* upper bound for the radius-edge ratio of the mesh tetrahedra. | ||
*/ | ||
double cell_radius_edge_ratio; | ||
/** | ||
* Uniform upper bound for the circumradii of the mesh tetrahedra. | ||
*/ | ||
double cell_size; | ||
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/** | ||
* Constructor. | ||
*/ | ||
AdditionalData( | ||
double edge_s = std::numeric_limits<double>::max(), | ||
double facet_a = 0., | ||
double facet_s = 0., | ||
double facet_d = 0., | ||
FacetTopology facet_t = | ||
dealii::CGALWrappers::FacetTopology::facet_vertices_on_surface, | ||
double cell_radius_edge_r = 0., | ||
double cell_s = 0.) | ||
{ | ||
AssertThrow( | ||
dim == 3, | ||
ExcMessage( | ||
"These struct can be instantiated with 3D Triangulations only.")); | ||
edge_size = edge_s; | ||
facet_angle = facet_a; | ||
facet_size = facet_s; | ||
facet_distance = facet_d; | ||
facet_topology = facet_t; | ||
cell_radius_edge_ratio = cell_radius_edge_r; | ||
cell_size = cell_s; | ||
} | ||
}; | ||
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/** | ||
* Specialization of the above struct when the object to be constructed is a | ||
* 2D triangulation embedded in the 3D space, i.e. a Triangulation<2,3>. | ||
* Only three parameters are accepted: | ||
* - `angular_bound` is a lower bound in degrees for the angles of mesh | ||
* facets. | ||
* - `radius_bound` is an upper bound on the radii of surface Delaunay balls. | ||
* A surface Delaunay ball is a ball circumscribing a mesh facet and centered | ||
* on the surface. | ||
* - `distance_bound` is an upper bound for the distance between the | ||
* circumcenter of a mesh facet and the center of a surface Delaunay ball of | ||
* this facet. | ||
*/ | ||
template <> | ||
struct AdditionalData<2> | ||
{ | ||
/** | ||
* Lower bound in degrees for the angles of mesh facets. | ||
*/ | ||
double angular_bound; | ||
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/** | ||
* Upper bound on the radii of surface Delaunay balls. A surface Delaunay | ||
* ball is a ball circumscribing a mesh facet and centered on the surface. | ||
*/ | ||
double radius_bound; | ||
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/** | ||
* Upper bound for the distance between the circumcenter of a mesh facet | ||
* and the center of a surface Delaunay ball of this facet. | ||
*/ | ||
double distance_bound; | ||
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/** | ||
* Constructor. | ||
*/ | ||
AdditionalData(double angular_b = 0., | ||
double radius_b = 0., | ||
double distance_b = 0.) | ||
{ | ||
angular_bound = angular_b; | ||
radius_bound = radius_b; | ||
distance_bound = distance_b; | ||
} | ||
}; | ||
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} // namespace CGALWrappers | ||
DEAL_II_NAMESPACE_CLOSE | ||
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#else | ||
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DEAL_II_NAMESPACE_OPEN | ||
namespace CGALWrappers | ||
{ | ||
/** | ||
* Empty structure for the case where CGAL is not available. | ||
*/ | ||
template <int dim> | ||
struct AdditionalData | ||
{}; | ||
} // namespace CGALWrappers | ||
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DEAL_II_NAMESPACE_CLOSE | ||
#endif | ||
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#endif |
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