mmgs1.c File Reference

Perform surface mesh adaptation. More...

#include "libmmgs_private.h"
#include "mmgsexterns_private.h"
#include "mmgexterns_private.h"
#include "inlined_functions_private.h"

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Functions
int	MMGS_dichoto (MMG5_pMesh mesh, MMG5_pSol met, MMG5_int k, MMG5_int *vx)
int	MMGS_dichoto1b (MMG5_pMesh mesh, MMG5_pSol met, MMG5_int iel, int ia, MMG5_int ip)
int	chkedg (MMG5_pMesh mesh, MMG5_int iel)
static void	MMGS_set_localFunc (MMG5_pSol met, int8_t typchk, double(**MMGS_lenEdg)(MMG5_pMesh, MMG5_pSol, MMG5_int, MMG5_int, int8_t), double(**MMGS_caltri)(MMG5_pMesh, MMG5_pSol, MMG5_pTria))
static int	swpmsh (MMG5_pMesh mesh, MMG5_pSol met, int8_t typchk)
static int	movtri (MMG5_pMesh mesh, MMG5_pSol met, int maxit)
static int	MMGS_delPatternPts (MMG5_pMesh mesh, MMG5_Hash hash)
static int	anaelt (MMG5_pMesh mesh, MMG5_pSol met, int8_t typchk)
MMG5_int	chkspl (MMG5_pMesh mesh, MMG5_pSol met, MMG5_int k, int i)
static MMG5_int	colelt (MMG5_pMesh mesh, MMG5_pSol met, int8_t typchk)
static MMG5_int	adpspl (MMG5_pMesh mesh, MMG5_pSol met)
static MMG5_int	adpcol (MMG5_pMesh mesh, MMG5_pSol met)
static int	adptri (MMG5_pMesh mesh, MMG5_pSol met, MMG5_int *permNodGlob)
static int	anatri (MMG5_pMesh mesh, MMG5_pSol met, int8_t typchk)
int	MMG5_mmgs1 (MMG5_pMesh mesh, MMG5_pSol met, MMG5_int *permNodGlob)

Variables
int8_t	ddb

Detailed Description

Perform surface mesh adaptation.

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.

Definition in file mmgs1.c.

Function Documentation

adpcol()

static MMG5_int adpcol ( MMG5_pMesh  mesh, MMG5_pSol  met  )

static

Parameters

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

Returns

-1 if failed.

number of deleted points.

Collapse edges of length smaller than MMGS_LOPTS.

Definition at line 1208 of file mmgs1.c.

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adpspl()

static MMG5_int adpspl ( MMG5_pMesh  mesh, MMG5_pSol  met  )

static

Parameters

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

Returns

-1 if failed or number of new points.

Split edges of length bigger than MMGS_LOPTL.

Definition at line 1132 of file mmgs1.c.

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adptri()

static int adptri ( MMG5_pMesh  mesh, MMG5_pSol  met, MMG5_int *  permNodGlob  )

static

Definition at line 1272 of file mmgs1.c.

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anaelt()

static int anaelt ( MMG5_pMesh  mesh, MMG5_pSol  met, int8_t  typchk  )

static

Parameters

mesh	pointer toward the mesh
met	pointer toward the metric
typchk	type of check performed depending on the remeshing step

Returns

-1 if fail, the number of split otherwise

Analyze triangles and split if needed

1. Simulate splitting and delete points leading to invalid configurations

Definition at line 579 of file mmgs1.c.

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anatri()

static int anatri ( MMG5_pMesh  mesh, MMG5_pSol  met, int8_t  typchk  )

static

Definition at line 1389 of file mmgs1.c.

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chkedg()

int chkedg	(	MMG5_pMesh	mesh,
		MMG5_int	iel
	)

Definition at line 214 of file mmgs1.c.

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chkspl()

MMG5_int chkspl	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG5_int	k,
		int	i
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
k	index of element to split.
i	index of edge to split.

Returns

-1 if lack of memory, 0 if the edge should not be split and 1 if success.

Check if splitting edge i of element k is ok.

Definition at line 954 of file mmgs1.c.

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colelt()

static MMG5_int colelt ( MMG5_pMesh  mesh, MMG5_pSol  met, int8_t  typchk  )

static

Parameters

mesh	pointer toward mesh structure
met	pointer toward met structure
typchk	type of check to perform: 1 for first stage (adaptation to capture roughly the surface mesh), 2 for second stage of adaptation (rough capture of input metric).

Attempt to collapse small edges

Definition at line 1025 of file mmgs1.c.

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MMG5_mmgs1()

int MMG5_mmgs1	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG5_int *	permNodGlob
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
permNodGlob	if provided, strore the global permutation of nodes.

Returns

0 if failed, 1 if success.

Main adaptation routine.

Definition at line 1462 of file mmgs1.c.

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MMGS_delPatternPts()

static int MMGS_delPatternPts ( MMG5_pMesh  mesh, MMG5_Hash  hash  )

inlinestatic

Parameters

mesh	pointer toward the mesh structure.
hash	pointer toward the hash table of edges.

Returns

0 if failed, 1 if success

Delete the points inserted by pattern if the pattern step fail.

Definition at line 537 of file mmgs1.c.

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MMGS_dichoto()

int MMGS_dichoto	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG5_int	k,
		MMG5_int *	vx
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
k	element index.
vx	pointer toward table of edges to split.

Returns

1.

Find acceptable position for splitting.

Definition at line 52 of file mmgs1.c.

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MMGS_dichoto1b()

int MMGS_dichoto1b	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG5_int	iel,
		int	ia,
		MMG5_int	ip
	)

Parameters

mesh	pointer toward the mesh structure.
met	pointer toward the metric structure.
iel	index of the starting triangle.
ia	local index of the edge to split in k.
ip	index of the point that we try to create.

Returns

1 if success, 0 otherwise.

Find acceptable position for MMG5_split1b, starting from point ip.

Definition at line 156 of file mmgs1.c.

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MMGS_set_localFunc()

static void MMGS_set_localFunc ( MMG5_pSol  met, int8_t  typchk, double(**)(MMG5_pMesh, MMG5_pSol, MMG5_int, MMG5_int, int8_t)  MMGS_lenEdg, double(**)(MMG5_pMesh, MMG5_pSol, MMG5_pTria)  MMGS_caltri  )

inlinestatic

Parameters

met	pointer toward met structure
typchk	type of check to perform: 1 for first stage (adaptation to capture roughly the surface mesh), 2 for second stage of adaptation (rough capture of input metric).

Assign functions for computation of edge lengths and tria qualities: they are now used in first stage of adaptation to ensure that, if we enter with a mesh+metric already adapted, we don't delete entierly the work done (massive collapses on planar surfaces for example).

Definition at line 406 of file mmgs1.c.

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movtri()

static int movtri ( MMG5_pMesh  mesh, MMG5_pSol  met, int  maxit  )

static

Definition at line 469 of file mmgs1.c.

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swpmsh()

static int swpmsh ( MMG5_pMesh  mesh, MMG5_pSol  met, int8_t  typchk  )

static

Definition at line 428 of file mmgs1.c.

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Variable Documentation

ddb

int8_t ddb

extern

Definition at line 42 of file mmg3d1_delone.c.