Delaunay.hpp File Reference

#include "gstlearn_export.hpp"
#include "Db/Db.hpp"
#include "Db/DbGrid.hpp"
#include "Mesh/AMesh.hpp"

Functions
GSTLEARN_EXPORT VectorDouble	get_db_extension (Db *dbin, Db *dbout, int *nout)
GSTLEARN_EXPORT VectorDouble	extend_grid (DbGrid *db, const VectorDouble &gext, int *nout)
GSTLEARN_EXPORT VectorDouble	extend_point (Db *db, const VectorDouble &gext, int *nout)
GSTLEARN_EXPORT int	MSS (int ndim, int ipol, int icas, int icorn, int idim)
GSTLEARN_EXPORT int	meshes_2D_write (const char *file_name, const char *obj_name, int verbose, int ndim, int ncode, int ntri, int npoints, const VectorInt &ntcode, const VectorInt &triangles, const VectorDouble &points)
GSTLEARN_EXPORT AMesh *	meshes_turbo_1D_grid_build (DbGrid *dbgrid)
GSTLEARN_EXPORT AMesh *	meshes_turbo_2D_grid_build (DbGrid *dbgrid)
GSTLEARN_EXPORT AMesh *	meshes_turbo_3D_grid_build (DbGrid *dbgrid)
GSTLEARN_EXPORT void	mesh_stats (int ndim, int ncorner, int nmesh, const int *meshes, const double *points)

Function Documentation

extend_grid()

GSTLEARN_EXPORT VectorDouble extend_grid	(	DbGrid *	db,
		const VectorDouble &	gext,
		int *	nout
	)

Extend a Grid by gext

Returns

The coordinates of the extension points (Dimension: number * ndim)

Parameters

[in]	db	Output Db grid structure
[in]	gext	Array of domain dilation
[out]	nout	Number of extension points

Remarks

The returned array 'ext' must be freed by the calling function

extend_point()

GSTLEARN_EXPORT VectorDouble extend_point	(	Db *	db,
		const VectorDouble &	gext,
		int *	nout
	)

Extend a Point Domain by gext

Returns

The coordinates of the extension points (Dimension: number * ndim)

Parameters

[in]	db	Output Db grid structure
[in]	gext	Array of domain dilation
[out]	nout	Number of extension points

Remarks

The returned array 'ext' must be freed by the calling function

get_db_extension()

GSTLEARN_EXPORT VectorDouble get_db_extension	(	Db *	dbin,
		Db *	dbout,
		int *	nout
	)

Define the maximum extension between dbin and/or dbout

Returns

Array of extensions

Parameters

[in]	dbin	Db input (optional)
[in]	dbout	Db output (optional)
[out]	nout	Number of extension points

Remarks

The calling function must free the returned array 'ext'

with its dimension: ndim * 2^ndim

mesh_stats()

GSTLEARN_EXPORT void mesh_stats	(	int	ndim,
		int	ncorner,
		int	nmesh,
		const int *	meshes,
		const double *	points
	)

Calculate the statistics on a set of meshes

Parameters

[in]	ndim	Space dimension
[in]	ncorner	Number of corners for each mesh
[in]	nmesh	Number of meshes
[in]	meshes	Array of vertex indices for each mesh
[in]	points	Array of 'ndim' coordinates for mesh vertex

meshes_2D_write()

GSTLEARN_EXPORT int meshes_2D_write	(	const char *	file_name,
		const char *	obj_name,
		int	verbose,
		int	ndim,
		int	ncode,
		int	ntri,
		int	npoints,
		const VectorInt &	ntcode,
		const VectorInt &	triangles,
		const VectorDouble &	points
	)

Dump the contents of a triangulation in an ASCII file according to the STL format

Parameters

[in]	file_name	Nmae of the created ASCII file
[in]	obj_name	Name assigned to the object
[in]	verbose	Verbose flag
[in]	ndim	Space dimension
[in]	ncode	Number of different codes
[in]	ntri	Number of triangles (expected)
[in]	npoints	Number of poins (expected)
[in]	ntcode	Array of number of triangles per code
[in]	triangles	Array of vertex indices for each triangle
[in]	points	Array of 3-D coordinates for triangle vertices

meshes_turbo_1D_grid_build()

GSTLEARN_EXPORT AMesh* meshes_turbo_1D_grid_build

(

DbGrid *

dbgrid

)

Build the regular meshing from a 1-D grid

Returns

The newly created AMesh structure

Parameters

[in]

dbgrid

Db structure

meshes_turbo_2D_grid_build()

GSTLEARN_EXPORT AMesh* meshes_turbo_2D_grid_build

(

DbGrid *

dbgrid

)

Build the regular 2-D grid meshing

Returns

Pointer to the newly created AMesh structure

Parameters

[in]

dbgrid

Db structure

meshes_turbo_3D_grid_build()

GSTLEARN_EXPORT AMesh* meshes_turbo_3D_grid_build

(

DbGrid *

dbgrid

)

Build the regular 3-D grid meshing

Returns

Pointer to the newly created AMesh structure

Parameters

[in]

dbgrid

Db structure

MSS()

GSTLEARN_EXPORT int MSS	(	int	ndim,
		int	ipol,
		int	icas,
		int	icorn,
		int	idim
	)

Returns the shift value for the apex('icorn')

Returns

Shift value

Parameters

[in]	ndim	Space dimension (1, 2 or 3)
[in]	ipol	Rank of the polarization (starting from 0)
[in]	icas	Rank of the case (starting from 0)
[in]	icorn	Rank of the corner (starting from 0)
[in]	idim	Rank of the coordinate (starting from 0)

Remarks

This function returns the shift value to be applied to each

coordinate index, for each apex for each mesh which constitutes

the partition of a cell into meshes (using Turbo facility)

When 'ndim' is provided as negative, a special case is programmed