Functions for the optimization of very bad elements. More...

#include "libmmg3d.h"
#include "inlined_functions_3d_private.h"

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Functions
static int	MMG3D_typelt (MMG5_pMesh mesh, MMG5_int iel, int *item)

int	MMG3D_swpItem (MMG5_pMesh mesh, MMG5_pSol met, MMG3D_pPROctree PROctree, MMG5_int k, int iar)

static int	MMG3D_swpalmostall (MMG5_pMesh mesh, MMG5_pSol met, MMG3D_pPROctree PROctree, MMG5_int k, int iar)

int	MMG3D_splitItem (MMG5_pMesh mesh, MMG5_pSol met, MMG3D_pPROctree PROctree, MMG5_int k, int iar, double OCRIT)

static int	MMG3D_splitalmostall (MMG5_pMesh mesh, MMG5_pSol met, MMG3D_pPROctree PROctree, MMG5_int k, int iar)

MMG5_int	MMG3D_opttyp (MMG5_pMesh mesh, MMG5_pSol met, MMG3D_pPROctree PROctree, MMG5_int testmark)

Detailed Description

Functions for the optimization of very bad elements.

Author: Cécile Dobrzynski (Bx INP/Inria/UBordeaux); Algiane Froehly (Inria/UBordeaux)

Version: 5

Copyright: GNU Lesser General Public License.

Definition in file opttyp_3d.c.

Function Documentation

◆ MMG3D_opttyp()

MMG5_int MMG3D_opttyp	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG3D_pPROctree	PROctree,
		MMG5_int	testmark
	)

Parameters

mesh	pointer to the mesh structure.
met	pointer to the metric structure.
PROctree	pointer to the PROctree structure.
testmark	all the tets with a mark less than testmark will not be treated.

Returns: 0 if fail, number of improved elts otherwise.

Travel across the mesh to detect element with very bad quality (less than 0.2) and try to improve them by every means.

Definition at line 472 of file opttyp_3d.c.

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◆ MMG3D_splitalmostall()

static int MMG3D_splitalmostall	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG3D_pPROctree	PROctree,
		MMG5_int	k,
		int	iar
	)

inlinestatic

Parameters

mesh	pointer to the mesh structure.
met	pointer to the metric structure.
PROctree	pointer to the PROctree structure.
k	elt index.
iar	index of edge to not split.

Returns: 1 if success, 0 otherwise

Try to split evry edge of tetra k except of edge number iar.

Definition at line 440 of file opttyp_3d.c.

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◆ MMG3D_splitItem()

int MMG3D_splitItem	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG3D_pPROctree	PROctree,
		MMG5_int	k,
		int	iar,
		double	OCRIT
	)

Parameters

mesh	pointer to the mesh structure.
met	pointer to the metric structure.
PROctree	pointer to the PROctree structure.
k	elt index.
iar	index of edge to split.
OCRIT	quality threshold.

Returns: 1 if success, 0 otherwise

Try to split edge number iar of tetra k

Definition at line 394 of file opttyp_3d.c.

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◆ MMG3D_swpalmostall()

static int MMG3D_swpalmostall	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG3D_pPROctree	PROctree,
		MMG5_int	k,
		int	iar
	)

inlinestatic

Parameters

mesh	pointer to the mesh structure.
met	pointer to the metric structure.
PROctree	pointer to the PROctree structure.
k	elt index.
iar	index of edge to not try to swap.

Returns: -1 if fail, 0 if we don't swap anything, 1 otherwise.

Try to swap all edges of tetra k except of the edge number iar.

Definition at line 367 of file opttyp_3d.c.

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◆ MMG3D_swpItem()

int MMG3D_swpItem	(	MMG5_pMesh	mesh,
		MMG5_pSol	met,
		MMG3D_pPROctree	PROctree,
		MMG5_int	k,
		int	iar
	)

Parameters

mesh	pointer to the mesh structure.
met	pointer to the metric structure.
PROctree	pointer to the PROctree structure.
k	elt index.
iar	index of edge to not try to swap.

Returns: -1 if fail, 0 if we don't swap anything, 1 otherwise.

Try to swap edge iar of tetra k.

Definition at line 328 of file opttyp_3d.c.

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◆ MMG3D_typelt()

static int MMG3D_typelt	(	MMG5_pMesh	mesh,
		MMG5_int	iel,
		int *	item
	)

static

Parameters

mesh	pointer to the mesh structure.
iel	element index.
item	bad entity.

Returns: -1 if fail, element type otherwise.

Identify the type of element.
Type:

0: element is ok.
1: empty volume but 4 valid faces (sliver)
2: empty volume and a vertex close to the opposite face. 4 valid faces (chinese hat).
3: 3 valid faces, 1 obtuse face (aileron)
4: 2 valid faces, 2 acute faces (=> 1 small edge)
5: 1 valid face, 3 small edges
6: 2 faces with big edges, 2 faces with small edges
7: 4 faces with big edges

Element caracteristics by type:

0: 0 obtuse face, 0 acute face, 0 big edge, 0 small edge.
1: 0 obtuse face, 0 acute face, 0 big edge, 0 small edge.
2: 0 obtuse face, 0 acute face, 0 big edge, 0 small edge.
3: 1 obtuse face, 0 acute face, 1 big edge, 0 small edge.
4: 0 obtuse face, 2 acute face, 0 big edge, 1 small edge.
5: 0 obtuse face, 3 acute face, 0 big edge, 3 small edge.
6: 2 obtuse face, 2 acute face, 1 big edge, 1 small edge.
7: 0 obtuse face, 4 acute face, 0 big edge, 2 small edge.

Definition at line 65 of file opttyp_3d.c.

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