Functions
unspecified_type	CGAL::parameters::manifold ()
	The function `parameters::manifold()` is used to drive the meshing algorithm for surfaces.

unspecified_type	CGAL::parameters::non_manifold ()
	The function `parameters::non_manifold()` is used to drive the meshing algorithm for surfaces.

unspecified_type	CGAL::parameters::manifold_with_boundary ()
	The function `parameters::manifold_with_boundary()` is used to drive the meshing algorithm for surfaces.

template<class NamedParameters = parameters::Default_named_parameters>
unspecified_type	CGAL::parameters::exude (const Named_function_parameters &np=parameters::default_values())
	The function `parameters::exude()` allows the user to trigger a call to `exude_mesh_3()` in the `make_mesh_3()` and `refine_mesh_3()` mesh generation functions.

unspecified_type	CGAL::parameters::features ()
	Provides an option indicating that 0 and 1-dimensional features have to be taken into account (the domain must be a model of `MeshDomainWithFeatures_3`).

template<class NamedParameters = parameters::Default_named_parameters>
unspecified_type	CGAL::parameters::lloyd (const Named_function_parameters &np=parameters::default_values())
	The function `parameters::lloyd()` allows the user to trigger a call of `lloyd_optimize_mesh_3()` in the mesh generation functions `make_mesh_3()` and `refine_mesh_3()`.

unspecified_type	CGAL::parameters::no_exude ()
	The function `parameters::no_exude()` allows the user to tell the mesh generation functions `make_mesh_3()` and `refine_mesh_3()` that no exudation must be done.

unspecified_type	CGAL::parameters::no_features ()
	Provides an option indicating no special treatment should be done with 0 and 1-dimensional features.

unspecified_type	CGAL::parameters::no_lloyd ()
	The function `parameters::no_lloyd()` allows the user to tell the mesh generation functions `make_mesh_3()` and `refine_mesh_3()` that no lloyd optimization must be done.

unspecified_type	CGAL::parameters::no_odt ()
	The function `parameters::no_odt()` allows the user to tell the mesh generation functions `make_mesh_3()` and `refine_mesh_3()` that no ODT optimization must be done.

unspecified_type	CGAL::parameters::no_perturb ()
	The function `parameters::no_perturb()` allows the user to tell mesh generation global functions `make_mesh_3()` and `refine_mesh_3()` that no perturbation must be done.

template<class NamedParameters = parameters::Default_named_parameters>
unspecified_type	CGAL::parameters::odt (const Named_function_parameters &np=parameters::default_values())
	The function `parameters::odt()` allows the user to trigger a call to `CGAL::odt_optimize_mesh_3()` in `CGAL::make_mesh_3()` and `CGAL::refine_mesh_3()` mesh optimization functions.

template<class NamedParameters = parameters::Default_named_parameters>
unspecified_type	CGAL::parameters::perturb (const Named_function_parameters &np=parameters::default_values())
	The function `parameters::perturb()` allows the user to trigger a call to `perturb_mesh_3()` in `make_mesh_3()` and `refine_mesh_3()` mesh generation functions.

Function Documentation

◆ exude()

template<class NamedParameters = parameters::Default_named_parameters>

unspecified_type CGAL::parameters::exude ( const Named_function_parameters & np = parameters::default_values() )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::exude() allows the user to trigger a call to exude_mesh_3() in the make_mesh_3() and refine_mesh_3() mesh generation functions.

It also allows the user to pass parameters to the optimization function exude_mesh_3() through these mesh generation functions.

Template Parameters

NamedParameters a sequence of Named Parameters

Parameters

np	an optional sequence of Named Parameters among the ones listed below:

Optional Named Parameters

is used to set up, in seconds, a CPU time limit after which the optimization process is stopped. This time is measured using the Real_timer class. The default value is 0 and means that there is no time limit.
Type: double
Precondition: time_limit >= 0
Default: 0

is designed to give, in degrees, a targeted lower bound on dihedral angles of mesh cells. The exudation process considers in turn all the mesh cells that have a smallest dihedral angle less than sliver_bound and tries to make them disappear by weighting their vertices. The optimization process stops when every cell in the mesh achieves this quality. The default value is 0 and means that there is no targeted bound: the exuder then runs as long as it can improve the smallest dihedral angles of the set of cells incident to some vertices.
Type: double
Precondition: 0 <= sliver_bound <= 180
Default: 0

Example

// Mesh generation with an exudation step
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::exude());
 
refine_mesh_3(c3t3,
              domain,
              criteria,
              parameters::exude(parameters::time_limit(10)));

See also: CGAL::parameters::no_exude(); CGAL::exude_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ features()

unspecified_type CGAL::parameters::features ( )

#include <CGAL/Mesh_3/parameters.h>

Provides an option indicating that 0 and 1-dimensional features have to be taken into account (the domain must be a model of MeshDomainWithFeatures_3).

This is the default behavior when the domain is a model of MeshDomainWithFeatures_3.

See also: CGAL::make_mesh_3(); CGAL::refine_mesh_3(); CGAL::parameters::no_features()

◆ lloyd()

template<class NamedParameters = parameters::Default_named_parameters>

unspecified_type CGAL::parameters::lloyd ( const Named_function_parameters & np = parameters::default_values() )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::lloyd() allows the user to trigger a call of lloyd_optimize_mesh_3() in the mesh generation functions make_mesh_3() and refine_mesh_3().

It also allows the user to pass parameters to the optimization function lloyd_optimize_mesh_3() through these mesh generation functions.

Template Parameters

NamedParameters a sequence of Named Parameters

Parameters

np	an optional sequence of Named Parameters among the ones listed below:

Optional Named Parameters

to set up, in seconds, a CPU time limit after which the optimization process is stopped. This time is measured using `CGAL::Real_timer`. 0 means that there is no time limit. Type: `double` Precondition: `time_limit >= 0` Default: 0
limit on the number of performed iterations. 0 means that there is no limit on the number of performed iterations. Precondition: `max_iteration_number >=0` Type: `int` Default: 0
designed to reduce running time of each optimization iteration. Any vertex that has a displacement less than a given fraction of the length of its shortest incident edge, is frozen (i.e. is not relocated). The parameter `freeze_bound` gives the threshold ratio. If it is set to 0, freezing of vertices is disabled. Precondition: `0<= freeze_bound <=1` Type: `double` Default: 0.01
threshold ratio of stopping criterion based on convergence: the optimization process is stopped when at the last iteration the displacement of any vertex is less than a given fraction of the length of the shortest edge incident to that vertex. Precondition: `0 <=convergence <= 1` Type: `double` Default: 0.02
completes the `freeze_bound` parameter. If it is set to `true` (default value), frozen vertices will not move anymore in next iterations. Otherwise, at each iteration, any vertex that moves, unfreezes all its incident vertices. Type: `bool` Default: true

Example

// Mesh generation with lloyd optimization step
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::lloyd());
 
refine_mesh_3(c3t3,
              domain,
              criteria,
              parameters::lloyd(parameters::time_limit(10)));

See also: CGAL::parameters::no_lloyd(); CGAL::lloyd_optimize_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ manifold()

unspecified_type CGAL::parameters::manifold ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::manifold() is used to drive the meshing algorithm for surfaces.

It ensures that the surface of the output mesh is a manifold surface without boundaries. The manifold property of the output mesh can be achieved only if the input surface is a manifold. Note that the meshing algorithm provably terminates only if the input sharp edges have been protected, using the feature protection (see Protection of 0 and 1-dimensional Exposed Features).

See also: CGAL::make_mesh_3(); CGAL::refine_mesh_3(); CGAL::parameters::manifold_with_boundary(); CGAL::parameters::non_manifold()

◆ manifold_with_boundary()

unspecified_type CGAL::parameters::manifold_with_boundary ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::manifold_with_boundary() is used to drive the meshing algorithm for surfaces.

It ensures that the surface of the output mesh is a manifold surface which may have boundaries. The manifold property of the output mesh can be achieved only if the input surface is a manifold. Note that the meshing algorithm provably terminates only if the input sharp edges have been protected, using the feature protection (see Protection of 0 and 1-dimensional Exposed Features).

See also: CGAL::make_mesh_3(); CGAL::refine_mesh_3(); CGAL::parameters::non_manifold(); CGAL::parameters::manifold()

◆ no_exude()

unspecified_type CGAL::parameters::no_exude ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::no_exude() allows the user to tell the mesh generation functions make_mesh_3() and refine_mesh_3() that no exudation must be done.

Example

// Mesh generation without exudation
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::no_exude());

See also: CGAL::parameters::exude(); CGAL::exude_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ no_features()

unspecified_type CGAL::parameters::no_features ( )

#include <CGAL/Mesh_3/parameters.h>

Provides an option indicating no special treatment should be done with 0 and 1-dimensional features.

See also: CGAL::make_mesh_3(); CGAL::refine_mesh_3(); CGAL::parameters::features()

◆ no_lloyd()

unspecified_type CGAL::parameters::no_lloyd ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::no_lloyd() allows the user to tell the mesh generation functions make_mesh_3() and refine_mesh_3() that no lloyd optimization must be done.

Example

// Mesh generation without lloyd optimization
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::no_lloyd());

See also: CGAL::parameters::lloyd(); CGAL::lloyd_optimize_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ no_odt()

unspecified_type CGAL::parameters::no_odt ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::no_odt() allows the user to tell the mesh generation functions make_mesh_3() and refine_mesh_3() that no ODT optimization must be done.

Example

// Mesh generation without odt optimization
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::no_odt());

See also: CGAL::parameters::odt(); CGAL::odt_optimize_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ no_perturb()

unspecified_type CGAL::parameters::no_perturb ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::no_perturb() allows the user to tell mesh generation global functions make_mesh_3() and refine_mesh_3() that no perturbation must be done.

Example

// Mesh generation without perturbation
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::no_perturb());

See also: CGAL::parameters::perturb(); CGAL::perturb_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ non_manifold()

unspecified_type CGAL::parameters::non_manifold ( )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::non_manifold() is used to drive the meshing algorithm for surfaces.

It does not ensure that the surface of the output mesh is a manifold surface. The manifold property of the output mesh might nevertheless result from an appropriate choice of meshing criteria.

See also: CGAL::make_mesh_3(); CGAL::refine_mesh_3(); CGAL::parameters::manifold_with_boundary(); CGAL::parameters::manifold()

◆ odt()

template<class NamedParameters = parameters::Default_named_parameters>

unspecified_type CGAL::parameters::odt ( const Named_function_parameters & np = parameters::default_values() )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::odt() allows the user to trigger a call to CGAL::odt_optimize_mesh_3() in CGAL::make_mesh_3() and CGAL::refine_mesh_3() mesh optimization functions.

It also allows the user to pass parameters to the optimization function odt_optimize_mesh_3() through these mesh generation functions.

Template Parameters

NamedParameters a sequence of Named Parameters

Parameters

np	an optional sequence of Named Parameters among the ones listed below:

Optional Named Parameters

is used to set up, in seconds, a CPU time limit after which the optimization process is stopped. This time is measured using `Real_timer`. The default value is 0 and means that there is no time limit. Type: `double` Precondition: `time_limit >= 0` Default: 0
sets a limit on the number of performed iterations. The default value of 0 means that there is no limit on the number of performed iterations. Type: `std::size_t` Default: 0
is a stopping criterion based on convergence: the optimization process is stopped, when at the last iteration, the displacement of any vertex is less than a given percentage of the length the shortest edge incident to that vertex. The parameter `convergence` gives the threshold ratio. Type: `double` Precondition: `0 <= convergence <= 1` Default: 0.02
is designed to reduce running time of each optimization iteration. Any vertex that has a displacement less than a given percentage of the length of its shortest incident edge, is frozen (i.e. is not relocated). The parameter `freeze_bound` gives the threshold ratio. Type: `double` Precondition: `0 <= freeze_bound <= 1` Default: 0.01
completes the `freeze_bound` parameter. If it is set to `true`, frozen vertices will not move anymore in next iterations. Otherwise, at each iteration, any vertex that moves, unfreezes all its incident vertices. Type: `bool` Default: true

Example

// Mesh generation with odt optimization step
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::odt());
 
refine_mesh_3(c3t3,
              domain,
              criteria,
              parameters::odt(parameters::time_limit(10)));

See also: CGAL::parameters::no_odt(); CGAL::odt_optimize_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

◆ perturb()

template<class NamedParameters = parameters::Default_named_parameters>

unspecified_type CGAL::parameters::perturb ( const Named_function_parameters & np = parameters::default_values() )

#include <CGAL/Mesh_3/parameters.h>

The function parameters::perturb() allows the user to trigger a call to perturb_mesh_3() in make_mesh_3() and refine_mesh_3() mesh generation functions.

It also allows the user to pass parameters to the optimization function perturb_mesh_3() through these mesh generation functions.

Template Parameters

NamedParameters a sequence of Named Parameters

Parameters

np	an optional sequence of Named Parameters among the ones listed below:

Optional Named Parameters

is used to set up, in seconds, a CPU time limit after which the optimization process is stopped. This time is measured using the Real_timer class. The default value is 0 and means that there is no time limit.
Type: double
Precondition: time_limit >= 0
Default: 0

is designed to give, in degrees, a targeted lower bound on dihedral angles of mesh cells. The exudation process considers in turn all the mesh cells that have a smallest dihedral angle less than sliver_bound and tries to make them disappear by weighting their vertices. The optimization process stops when every cell in the mesh achieves this quality. The default value is 0 and means that there is no targeted bound: the exuder then runs as long as it can improve the smallest dihedral angles of the set of cells incident to some vertices.
Type: double
Precondition: 0 <= sliver_bound <= 180
Default: 0

Example

// Mesh generation with a perturbation step
C3t3 c3t3 = make_mesh_3<c3t3>(domain,
                              criteria,
                              parameters::perturb());
 
refine_mesh_3(c3t3,
              domain,
              criteria,
              parameters::perturb(parameters::time_limit(10)));

See also: CGAL::parameters::no_perturb(); CGAL::perturb_mesh_3(); CGAL::make_mesh_3(); CGAL::refine_mesh_3()

Functions

Function Documentation

◆ exude()

◆ features()

◆ lloyd()

◆ manifold()

◆ manifold_with_boundary()

◆ no_exude()

◆ no_features()

◆ no_lloyd()

◆ no_odt()

◆ no_perturb()

◆ non_manifold()

◆ odt()

◆ perturb()