analys_s.c File Reference

Mesh analysis. More...

#include "libmmgs_private.h"
#include "mmgcommon_private.h"

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Functions
int	MMGS_setadj (MMG5_pMesh mesh)
static void	nmpoints (MMG5_pMesh mesh)
static int	setdhd (MMG5_pMesh mesh)
static int	MMG5_singul (MMG5_pMesh mesh)
static int	norver (MMG5_pMesh mesh)
static int	MMGS_dichotomy (MMG5_pMesh mesh, MMG5_pTria pt, MMG5_int k, double *c, double *n)
int	MMGS_regver (MMG5_pMesh mesh)
int	MMGS_remDup (MMG5_pMesh mesh)
int	MMGS_analys_for_norver (MMG5_pMesh mesh)
int	MMGS_analys (MMG5_pMesh mesh)

Detailed Description

Mesh analysis.

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.

Todo:

doxygen documentation.

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.

Todo:

doxygen documentation.

Definition in file analys_s.c.

Function Documentation

MMG5_singul()

static int MMG5_singul ( MMG5_pMesh  mesh )

static

Parameters

mesh	pointer to the mesh structure.

Returns

1 if succeed, 0 if fail

check for singularities

Definition at line 496 of file analys_s.c.

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MMGS_analys()

int MMGS_analys

(

MMG5_pMesh

mesh

)

Definition at line 1094 of file analys_s.c.

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MMGS_analys_for_norver()

int MMGS_analys_for_norver

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to the mesh structure.

Returns

1 if succeed, 0 if fail

Preprocessing stage: mesh analysis.

Definition at line 1042 of file analys_s.c.

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MMGS_dichotomy()

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

inlinestatic

Parameters

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

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 754 of file analys_s.c.

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MMGS_regver()

int MMGS_regver

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to a MMG5 mesh structure.

Returns

0 if fail, 1 otherwise.

Regularization procedure for vertices coordinates, dual Laplacian for a surface mesh.

Definition at line 817 of file analys_s.c.

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MMGS_remDup()

int MMGS_remDup

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to the mesh structure.

Returns

0 if failed, 1 otherwise.

Remove duplicated triangles.

Definition at line 996 of file analys_s.c.

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MMGS_setadj()

int MMGS_setadj

(

MMG5_pMesh

mesh

)

Parameters

mesh	pointer to the mesh

Returns

1 if success, 0 if fail

topology: set adjacent, detect Moebius, flip faces, count connected comp.

Definition at line 47 of file analys_s.c.

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nmpoints()

static void nmpoints ( MMG5_pMesh  mesh )

static

Parameters

mesh	pointer to the mesh structure.

Returns

1 if succeed, 0 if fail

Detect non manifold points

Definition at line 253 of file analys_s.c.

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norver()

static int norver ( MMG5_pMesh  mesh )

static

Parameters

mesh	pointer to the mesh structure.

Returns

1 if succeed, 0 if fail

Compute normals at C1 vertices, for C0: tangents This function allocate the xpoint array. A point will have an xpoint if:

• it is along a reference edge, the xpoint then stores the normal at point while the n field of point containt the tangent at ref edge.
• it is along a ridge, the xpoint then stores both normals at point while ppt->n stores the tangent

Corner, required and regular points don't have xpoints.

Definition at line 599 of file analys_s.c.

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setdhd()

static int setdhd ( MMG5_pMesh  mesh )

static

improve badly shaped elts for isotropic mesh

Parameters

mesh	pointer to the mesh structure.

Returns

1 if succeed, 0 if fail

check for ridges: dihedral angle

Definition at line 445 of file analys_s.c.

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