analys_2d.c File Reference

Analysis routine for an input mesh without structure passing through a point. More...

#include "libmmg2d_private.h"

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Functions
int	MMG2D_setadj (MMG5_pMesh mesh, int8_t init_cc)
int	MMG2D_singul (MMG5_pMesh mesh, MMG5_int ref)
int	MMG2D_norver (MMG5_pMesh mesh, MMG5_int ref)
int	MMG2D_regnor (MMG5_pMesh mesh)
static int	MMG2D_dichotomy (MMG5_pMesh mesh, MMG5_pTria pt, MMG5_int k, double *c)
int	MMG2D_regver (MMG5_pMesh mesh)
int	MMG2D_analys (MMG5_pMesh mesh)

Variables
int8_t	ddb

Detailed Description

Analysis routine for an input mesh without structure passing through a point.

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 analys_2d.c.

Function Documentation

MMG2D_analys()

int MMG2D_analys

(

MMG5_pMesh

mesh

)

preprocessing stage: mesh analysis

Warning

possible time improvment here: in lssurf mode, the second call of MMG2D_setadj only adds BDY tag to points that have been inserted by the level-set splitting (the rest of the job of setadj has alredy be done by the first call).

Definition at line 1014 of file analys_2d.c.

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MMG2D_dichotomy()

static int MMG2D_dichotomy ( MMG5_pMesh  mesh, MMG5_pTria  pt, MMG5_int  k, double *  c  )

inlinestatic

Parameters

mesh	pointer to the mesh
pt	pointer to current triangle
k	number of current point
c	newly computed coordinates (giving negative area)

Returns

0 if fail, 1 if success

In coordinate regularization, performs a dichotomy between previous point / and newly computed point in the case of negative area

Definition at line 787 of file analys_2d.c.

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MMG2D_norver()

int MMG2D_norver	(	MMG5_pMesh	mesh,
		MMG5_int	ref
	)

Parameters

mesh	pointer to the mesh structure
ref	reference of the boundary to analyze (analyze all the boundaries if MMG5_UNSET)

Returns

1 if success, 0 if fail.

Calculate normal vectors at vertices of the mesh.

Mark the points that we don't want to analyze

Definition at line 414 of file analys_2d.c.

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MMG2D_regnor()

int MMG2D_regnor

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to the mesh

Returns

0 if fail, 1 if success

Regularize normal vectors at boundary non singular edges with a Laplacian / antilaplacian smoothing

Definition at line 519 of file analys_2d.c.

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MMG2D_regver()

int MMG2D_regver

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to the mesh

Returns

0 if fail, 1 if success

Regularize vertices coordinates at boundary non singular edges with a Laplacian / antilaplacian smoothing

Definition at line 853 of file analys_2d.c.

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MMG2D_setadj()

int MMG2D_setadj	(	MMG5_pMesh	mesh,
		int8_t	init_cc
	)

Parameters

mesh	pointer to the mesh
init_cc	1 if we need to reinitialized cc field of tria because setadj has already been called (isosurf mode)

Returns

1 if success, 0 if fail

Set tags GEO, BDY and REF to triangles and points by traveling the mesh; count number of subdomains or connected components

Step 1: Tags setting from triangles analysis

Step 2: Mark the edges at interface between tria and quads as nosurf and required

Definition at line 50 of file analys_2d.c.

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MMG2D_singul()

int MMG2D_singul	(	MMG5_pMesh	mesh,
		MMG5_int	ref
	)

Parameters

mesh	pointer to the mesh structure
ref	reference of the boundary to analyze (analyze all the boundaries if MMG5_UNSET)

Returns

1 if success, 0 if fail.

Identify singularities in the mesh.

Mark the points that we don't want to analyze

Singularity identification

Definition at line 280 of file analys_2d.c.

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Variable Documentation

ddb

int8_t ddb

extern

Definition at line 42 of file mmg3d1_delone.c.