Various tools for the mmg applications. More...

#include "mmgcommon.h"

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Functions
int	MMG5_devangle (double n1, double n2, double crit)

int	MMG5_nonUnitNorPts (MMG5_pMesh mesh, int ip1, int ip2, int ip3, double *n)

double	MMG5_nonorsurf (MMG5_pMesh mesh, MMG5_pTria pt)

int	MMG5_norpts (MMG5_pMesh mesh, int ip1, int ip2, int ip3, double *n)

int	MMG5_nortri (MMG5_pMesh mesh, MMG5_pTria pt, double *n)

void	MMG5_mn (double m[6], double n[6], double mn[9])

int	MMG5_rmtr (double r[3][3], double m[6], double mr[6])

int	MMG5_rotmatrix (double n[3], double r[3][3])

int	MMG5_invmat (double m, double mi)

int	MMG5_invmatg (double m[9], double mi[9])

int	MMG5_invmat33 (double m[3][3], double mi[3][3])

int	MMG5_sys33sym (double a[6], double b[3], double r[3])

void	MMG5_printTria (MMG5_pMesh mesh, char *fileName)

size_t	MMG5_memSize (void)

void	MMG5_memOption_memSet (MMG5_pMesh mesh)

static int	MMG5_Alloc_inode (MMG5_pMesh mesh, MMG5_iNode **node)

int	MMG5_Add_inode (MMG5_pMesh mesh, MMG5_iNode **liLi, int val)

void	MMG5_Free_ilinkedList (MMG5_pMesh mesh, MMG5_iNode *liLi)

static int	MMG5_Alloc_dnode (MMG5_pMesh mesh, MMG5_dNode **node)

int	MMG5_Add_dnode (MMG5_pMesh mesh, MMG5_dNode **liLi, int k, double val)

void	MMG5_Free_dlinkedList (MMG5_pMesh mesh, MMG5_dNode *liLi)

double	MMG5_det3pt1vec (double c0[3], double c1[3], double c2[3], double v[3])

double	MMG5_det4pt (double c0[3], double c1[3], double c2[3], double c3[3])

double	MMG5_orvol (MMG5_pPoint point, int *v)

double	MMG2D_quickarea (double a[2], double b[2], double c[2])

void	MMG5_mark_verticesAsUnused (MMG5_pMesh mesh)

void	MMG5_mark_usedVertices (MMG5_pMesh mesh, void(*delPt)(MMG5_pMesh, int))

void	MMG5_keep_subdomainElts (MMG5_pMesh mesh, int nsd, int(*delElt)(MMG5_pMesh, int))

Detailed Description

Various tools for the mmg applications.

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.

Function Documentation

◆ MMG2D_quickarea()

double MMG2D_quickarea	(	double	a[2],
		double	b[2],
		double	c[2]
	)

Parameters

a	point coordinates
b	point coor
c	point coor

Compute tria area.

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◆ MMG5_Add_dnode()

int MMG5_Add_dnode	(	MMG5_pMesh	mesh,
		MMG5_dNode **	liLi,
		int	k,
		double	val
	)

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
liLi	pointer toward the address of the root of the linked list.
k	integer value to add to the linked list.
val	real value to add to the linked list.

Returns: 1 if the node is inserted, 0 if the node is not inserted, -1 if fail.

Add a node with integer value k and real value val to a sorted linked list with unique entries.

Remarks: as the linked list had unique entries, we don't insert a node if it exists.

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◆ MMG5_Add_inode()

int MMG5_Add_inode	(	MMG5_pMesh	mesh,
		MMG5_iNode **	liLi,
		int	val
	)

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
liLi	pointer toward the address of the root of the linked list.
val	value to add to the linked list.

Returns: 1 if the node is inserted, 0 if the node is not inserted, -1 if fail.

Add a node with value val to a sorted linked list with unique entries.

Remarks: as the linked list had unique entries, we don't insert a node if it exists.

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◆ MMG5_Alloc_dnode()

static int MMG5_Alloc_dnode	(	MMG5_pMesh	mesh,
		MMG5_dNode **	node
	)

inlinestatic

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
node	pointer toward a MMG5_dNode (cell for linked list)

Returns: 1 if we can alloc the node node, 0 otherwise.

Node allocation.

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◆ MMG5_Alloc_inode()

static int MMG5_Alloc_inode	(	MMG5_pMesh	mesh,
		MMG5_iNode **	node
	)

inlinestatic

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
node	pointer toward a MMG5_iNode (cell for linked list)

Returns: 1 if we can alloc the node node, 0 otherwise.

Node allocation.

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◆ MMG5_det3pt1vec()

double MMG5_det3pt1vec	(	double	c0[3],
		double	c1[3],
		double	c2[3],
		double	v[3]
	)

inline

Compute 3 * 3 determinant : det(c1-c0,c2-c0,v)

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◆ MMG5_det4pt()

double MMG5_det4pt	(	double	c0[3],
		double	c1[3],
		double	c2[3],
		double	c3[3]
	)

inline

Compute 3 * 3 determinant : det(c1-c0,c2-c0,c3-c0)

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◆ MMG5_devangle()

int MMG5_devangle	(	double *	n1,
		double *	n2,
		double	crit
	)

Parameters

n1	first normal
n2	second normal
crit	ridge threshold

Returns: 1 if success, 0 if fail

Check if the angle between n1 and n2 is larger than the ridge criterion. If yes, return 1, 0 otherwise (ridge creation).

◆ MMG5_Free_dlinkedList()

void MMG5_Free_dlinkedList	(	MMG5_pMesh	mesh,
		MMG5_dNode *	liLi
	)

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
liLi	pointer toward the root of the linked list.

Free the memory used by the linked list whose root is liLi.

◆ MMG5_Free_ilinkedList()

void MMG5_Free_ilinkedList	(	MMG5_pMesh	mesh,
		MMG5_iNode *	liLi
	)

Parameters

mesh	pointer toward the mesh structure (for count of used memory).
liLi	pointer toward the root of the linked list.

Free the memory used by the linked list whose root is liLi.

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◆ MMG5_invmat()

int MMG5_invmat	(	double *	m,
		double *	mi
	)

Parameters

m	pointer toward a 3x3 symetric matrix
mi	pointer toward the computed 3x3 matrix.

Invert m (3x3 symetric matrix) and store the result on mi

◆ MMG5_invmat33()

int MMG5_invmat33	(	double	m[3][3],
		double	mi[3][3]
	)

Parameters

m	initial matrix.
mi	inverted matrix.

Invert 3x3 non-symmetric matrix stored in 2 dimensions

◆ MMG5_invmatg()

int MMG5_invmatg	(	double	m[9],
		double	mi[9]
	)

Parameters

m	initial matrix.
mi	inverted matrix.

Invert 3x3 non-symmetric matrix.

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◆ MMG5_keep_subdomainElts()

void MMG5_keep_subdomainElts	(	MMG5_pMesh	mesh,
		int	nsd,
		int(*)(MMG5_pMesh, int)	delElt
	)

Parameters

mesh	pointer toward the mesh structure.
nsd	subdomain index.
delElt	function to call to delete elt.

Remove triangles that do not belong to subdomain of index nsd

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◆ MMG5_mark_usedVertices()

void MMG5_mark_usedVertices	(	MMG5_pMesh	mesh,
		void(*)(MMG5_pMesh, int)	delPt
	)

Parameters

mesh	pointer toward the mesh structure.
delPt	function to call to delete point.

Mark the mesh vertices that belong to triangles or quadrangles as used (for Mmgs or Mmg2d).

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◆ MMG5_mark_verticesAsUnused()

void MMG5_mark_verticesAsUnused ( MMG5_pMesh mesh )

Parameters

mesh	pointer toward the mesh structure.

Mark all mesh vertices as unused.

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◆ MMG5_memOption_memSet()

void MMG5_memOption_memSet ( MMG5_pMesh mesh )

Parameters

mesh	pointer toward the mesh structure

Set the memMax value to its "true" value if memory asked by user. Here the MMG5_MEMPERCENT coef is already applied on memMax.

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◆ MMG5_memSize()

size_t MMG5_memSize ( void )

Returns: the available memory size of the computer.

Compute the available memory size of the computer.

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◆ MMG5_mn()

void MMG5_mn	(	double	m[6],
		double	n[6],
		double	mn[9]
	)

Parameters

m	symetric matrix
n	symetric matrix
mn	result

Compute product m*n (mn stored in columns: mn[1] = mn[1][0]).

◆ MMG5_nonorsurf()

double MMG5_nonorsurf	(	MMG5_pMesh	mesh,
		MMG5_pTria	pt
	)

inline

Parameters

mesh	pointer toward the mesh stucture.
pt	triangle for which we compute the surface.

Returns: the computed surface

Compute non-oriented surface area of a triangle.

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◆ MMG5_nonUnitNorPts()

int MMG5_nonUnitNorPts	(	MMG5_pMesh	mesh,
		int	ip1,
		int	ip2,
		int	ip3,
		double *	n
	)

inline

Parameters

mesh	pointer toward the mesh stucture.
ip1	first point of face.
ip2	second point of face.
ip3	third point of face.
n	pointer to store the computed normal.

Returns: 1

Compute non-normalized face normal given three points on the surface.

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◆ MMG5_norpts()

int MMG5_norpts	(	MMG5_pMesh	mesh,
		int	ip1,
		int	ip2,
		int	ip3,
		double *	n
	)

inline

Parameters

mesh	pointer toward the mesh stucture.
ip1	first point of face.
ip2	second point of face.
ip3	third point of face.
n	pointer to store the computed normal.

Returns: 1 if success, 0 otherwise.

Compute normalized face normal given three points on the surface.

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◆ MMG5_nortri()

int MMG5_nortri	(	MMG5_pMesh	mesh,
		MMG5_pTria	pt,
		double *	n
	)

inline

Parameters

mesh	pointer toward the mesh stucture.
pt	pointer toward the triangle structure.
n	pointer to store the computed normal.

Returns: 1

Compute triangle normal.

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◆ MMG5_orvol()

double MMG5_orvol	(	MMG5_pPoint	point,
		int *	v
	)

inline

Parameters

point	Pointer toward the points array
v	pointer toward the point indices

Returns: the oriented volume of tetra

Compute oriented volume of a tetrahedron (x6)

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◆ MMG5_printTria()

void MMG5_printTria	(	MMG5_pMesh	mesh,
		char *	fileName
	)

Parameters

mesh	pointer toward the mesh structure.
fileName	pointer toward the file name.

Debug function (not use in clean code): write mesh->tria structure in file.

◆ MMG5_rmtr()

int MMG5_rmtr	(	double	r[3][3],
		double	m[6],
		double	mr[6]
	)

inline

Parameters

r	3x3 matrix
m	symetric matrix
mr	result

Returns: 1

Compute product R*M*tR when M is symmetric

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◆ MMG5_rotmatrix()

int MMG5_rotmatrix	(	double	n[3],
		double	r[3][3]
	)

inline

Parameters

n	pointer toward the vector that we want to send on the third vector of canonical basis.
r	computed rotation matrix.

Compute rotation matrix that sends vector n to the third vector of canonical basis.

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◆ MMG5_sys33sym()

int MMG5_sys33sym	(	double	a[6],
		double	b[3],
		double	r[3]
	)

inline

Parameters

a	matrix to invert.
b	last member.
r	vector of unknowns.

Returns: 0 if fail, 1 otherwise.

Solve $3\times 3$ symmetric system $ A . r = b $ .

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Functions

Detailed Description

Function Documentation

◆ MMG2D_quickarea()

◆ MMG5_Add_dnode()

◆ MMG5_Add_inode()

◆ MMG5_Alloc_dnode()

◆ MMG5_Alloc_inode()

◆ MMG5_det3pt1vec()

◆ MMG5_det4pt()

◆ MMG5_devangle()

◆ MMG5_Free_dlinkedList()

◆ MMG5_Free_ilinkedList()

◆ MMG5_invmat()

◆ MMG5_invmat33()

◆ MMG5_invmatg()

◆ MMG5_keep_subdomainElts()

◆ MMG5_mark_usedVertices()

◆ MMG5_mark_verticesAsUnused()

◆ MMG5_memOption_memSet()

◆ MMG5_memSize()

◆ MMG5_mn()

◆ MMG5_nonorsurf()

◆ MMG5_nonUnitNorPts()

◆ MMG5_norpts()

◆ MMG5_nortri()

◆ MMG5_orvol()

◆ MMG5_printTria()

◆ MMG5_rmtr()

◆ MMG5_rotmatrix()

◆ MMG5_sys33sym()