-
Notifications
You must be signed in to change notification settings - Fork 707
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
5 changed files
with
149 additions
and
124 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,140 @@ | ||
// --------------------------------------------------------------------- | ||
// | ||
// 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. | ||
// | ||
// --------------------------------------------------------------------- | ||
|
||
#ifndef dealii_cgal_additional_data_h | ||
#define dealii_cgal_additional_data_h | ||
|
||
#include <deal.II/base/config.h> | ||
|
||
#ifdef DEAL_II_WITH_CGAL | ||
|
||
# include <CGAL/boost/graph/Named_function_parameters.h> | ||
|
||
DEAL_II_NAMESPACE_OPEN | ||
namespace CGALWrappers | ||
{ | ||
/** | ||
* 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 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 | ||
{ | ||
double facet_angle; | ||
double facet_size; | ||
double facet_distance; | ||
double cell_radius_edge_ratio; | ||
double cell_size; | ||
|
||
AdditionalData( | ||
double facet_a = CGAL::parameters::is_default_parameter(true), | ||
double facet_s = CGAL::parameters::is_default_parameter(true), | ||
double facet_d = CGAL::parameters::is_default_parameter(true), | ||
double cell_radius_edge_r = CGAL::parameters::is_default_parameter(true), | ||
double cell_s = CGAL::parameters::is_default_parameter(true)) | ||
{ | ||
AssertThrow( | ||
dim == 3, | ||
ExcMessage( | ||
"These struct can be instantiated with 3D Triangulations only.")); | ||
facet_angle = facet_a; | ||
facet_size = facet_s; | ||
facet_distance = facet_d; | ||
cell_radius_edge_ratio = cell_radius_edge_r; | ||
cell_size = cell_s; | ||
} | ||
}; | ||
|
||
|
||
|
||
/** | ||
* 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> | ||
{ | ||
double angular_bound, radius_bound, distance_bound; | ||
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; | ||
} | ||
}; | ||
|
||
} // namespace CGALWrappers | ||
DEAL_II_NAMESPACE_CLOSE | ||
|
||
#else | ||
|
||
DEAL_II_NAMESPACE_OPEN | ||
namespace CGALWrappers | ||
{ | ||
template <int dim> | ||
struct AdditionalData | ||
{}; | ||
} // namespace CGALWrappers | ||
|
||
DEAL_II_NAMESPACE_CLOSE | ||
#endif | ||
|
||
#endif |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters