isosiz_3d.c File Reference

Fonctions for isotropic size map computation. More...

#include "mmg3d.h"
#include "inlined_functions.h"

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Macros
#define	MAXLEN   1.0e9
#define	A64TH   0.015625
#define	A16TH   0.0625
#define	A32TH   0.03125

Functions
double	_MMG5_lenedgCoor_iso (double *ca, double *cb, double *ma, double *mb)
	Compute edge length from edge's coordinates. More...
static double	_MMG5_defsizreg (MMG5_pMesh mesh, MMG5_pSol met, int nump, int *lists, int ilists, double hmin, double hmax, double hausd)
double	_MMG5_meansizreg_iso (MMG5_pMesh mesh, MMG5_pSol met, int nump, int *lists, int ilists, double hmin, double hmax)
int	_MMG3D_defsiz_iso (MMG5_pMesh mesh, MMG5_pSol met)
int	_MMG5_gradsiz_iso (MMG5_pMesh mesh, MMG5_pSol met)

Variables
char	ddb

Detailed Description

Fonctions for isotropic size map computation.

Author

Charles Dapogny (UPMC)

Cécile Dobrzynski (Bx INP/Inria/UBordeaux)

Pascal Frey (UPMC)

Algiane Froehly (Inria/UBordeaux)

Version

5

Copyright

GNU Lesser General Public License.

Macro Definition Documentation

A16TH

#define A16TH   0.0625

A32TH

#define A32TH   0.03125

A64TH

#define A64TH   0.015625

MAXLEN

#define MAXLEN   1.0e9

Function Documentation

_MMG3D_defsiz_iso()

int _MMG3D_defsiz_iso	(	MMG5_pMesh	mesh,
		MMG5_pSol	met
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.

Returns

0 if fail, 1 otherwise.

Define isotropic size map at all boundary vertices of the mesh, associated with geometric approx, and prescribe hmax at the internal vertices Field h of Point is used, to store the prescribed size (not inverse, squared,...)

1) Size at internal points











First step: search for local parameters










Second step: set the metric









Set size at points that cannot be reached from the tetra








First step: search for local parameters







Second step: set the metric






Set size at points that cannot be reached from the tetra





2) size at regular surface points




First step: search for local parameters



Second step: set the metric


3) Travel all boundary faces to update size prescription for points on ridges/edges

First step: search for local parameters
Second step: set metric

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_MMG5_defsizreg()

static double _MMG5_defsizreg ( MMG5_pMesh  mesh, MMG5_pSol  met, int  nump, int *  lists, int  ilists, double  hmin, double  hmax, double  hausd  )

static

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
nump	index of point in which the size must be computed.
lists	pointer toward the surfacic ball of nump.
ilists	size of surfacic ball of nump.
hmin	minimal edge size.
hmax	maximal edge size.
hausd	hausdorff value.

Returns

the isotropic size at the point if success, FLT_MAX if fail.

Define isotropic size at regular point nump, whose surfacic ball is provided.

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_MMG5_gradsiz_iso()

int _MMG5_gradsiz_iso	(	MMG5_pMesh	mesh,
		MMG5_pSol	met
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.

Returns

0 if fail, 1 otherwise.

Enforce mesh gradation by truncating size map.

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_MMG5_lenedgCoor_iso()

double _MMG5_lenedgCoor_iso ( double *  ca, double *  cb, double *  ma, double *  mb  )

inline

Compute edge length from edge's coordinates.

Parameters

*ca	pointer toward the coordinates of the first edge's extremity.
*cb	pointer toward the coordinates of the second edge's extremity.
*ma	pointer toward the metric associated to the first edge's extremity.
*mb	pointer toward the metric associated to the second edge's extremity.

Returns

edge length.

Compute length of edge (with ca and cb coordinates of edge extremities) according to the isotropic size prescription.

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_MMG5_meansizreg_iso()

double _MMG5_meansizreg_iso	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		int	nump,
		int *	lists,
		int	ilists,
		double	hmin,
		double	hmax
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
nump	index of point in which the size must be computed.
lists	pointer toward the surfacic ball of nump.
ilists	size of surfacic ball of nump.
hmin	minimal edge size.
hmax	maximal edge size.

Returns

the isotropic size at the point.

For -nosurf option : define isotropic size at regular point nump, whose surfacic ball is provided. The size is computed as the mean of the length of the surface edges passing through nump.

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Variable Documentation

ddb

char ddb