Vmgrid class

Oracle for Cartesian mesh data. More...

Files
file	vmgrid.h
	Multiresolution oracle for Cartesian mesh data.
Data Structures
struct	sVmgrid
	Multiresoltion oracle for Cartesian mesh data. More...
Defines
#define	VMGRIDMAX   20
Typedefs
typedef sVmgrid	Vmgrid
	Declaration of the Vmgrid class as the Vgmrid structure.
Functions
Vmgrid *	Vmgrid_ctor ()
	Construct Vmgrid object.
int	Vmgrid_ctor2 (Vmgrid *thee)
	Initialize Vmgrid object.
int	Vmgrid_value (Vmgrid *thee, double x[3], double *value)
	Get potential value (from mesh or approximation) at a point.
void	Vmgrid_dtor (Vmgrid **thee)
	Object destructor.
void	Vmgrid_dtor2 (Vmgrid *thee)
	FORTRAN stub object destructor.
int	Vmgrid_addGrid (Vmgrid *thee, Vgrid *grid)
	Add a grid to the hierarchy.
int	Vmgrid_curvature (Vmgrid *thee, double pt[3], int cflag, double *curv)
	Get second derivative values at a point.
int	Vmgrid_gradient (Vmgrid *thee, double pt[3], double grad[3])
	Get first derivative values at a point.
Vgrid *	Vmgrid_getGridByNum (Vmgrid *thee, int num)
	Get specific grid in hiearchy.
Vgrid *	Vmgrid_getGridByPoint (Vmgrid *thee, double pt[3])
	Get grid in hiearchy which contains specified point or VNULL.

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Detailed Description

Oracle for Cartesian mesh data.

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Define Documentation

#define VMGRIDMAX   20

The maximum number of levels in the grid hiearchy

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Function Documentation

int Vmgrid_addGrid (  Vmgrid *  thee, Vgrid *  grid )

Add a grid to the hierarchy. Author: Nathan Baker Parameters: thee  Pointer to object to be destroyed grid  Grid to be added. As mentioned above, we would prefer to have the finest grid added first, next-finest second, ..., coarsest last -- this is how the grid will be searched when looking up values for points. However, this is not enforced to provide flexibility for cases where the dataset is decomposed into disjoint partitions, etc. Returns: 1 if successful, 0 otherwise

Vmgrid* Vmgrid_ctor (   )

Construct Vmgrid object. Author: Nathan Baker Returns: Newly allocated and initialized Vmgrid object

int Vmgrid_ctor2 (  Vmgrid *  thee  )

Initialize Vmgrid object. Author: Nathan Baker Parameters: thee  Newly allocated Vmgrid object Returns: Newly allocated and initialized Vmgrid object

int Vmgrid_curvature (  Vmgrid *  thee, double  pt[3], int  cflag, double *  curv )

Get second derivative values at a point. Author: Nathan Baker (wrapper for Vgrid routine by Steve Bond) Parameters: thee  Pointer to Vmgrid object pt  Location to evaluate second derivative cflag  0: Reduced Maximal Curvature 1: Mean Curvature (Laplace) 2: Gauss Curvature 3: True Maximal Curvature curv  Specified curvature value Returns: 1 if successful, 0 if off grid

void Vmgrid_dtor (  Vmgrid **  thee  )

Object destructor. Author: Nathan Baker Parameters: thee  Pointer to memory location of object to be destroyed

void Vmgrid_dtor2 (  Vmgrid *  thee  )

FORTRAN stub object destructor. Author: Nathan Baker Parameters: thee  Pointer to object to be destroyed

Vgrid* Vmgrid_getGridByNum (  Vmgrid *  thee, int  num )

Get specific grid in hiearchy. Author: Nathan Baker Parameters: thee  Pointer to Vmgrid object num  Number of grid in hiearchy Returns: Pointer to specified grid

Vgrid* Vmgrid_getGridByPoint (  Vmgrid *  thee, double  pt[3] )

Get grid in hiearchy which contains specified point or VNULL. Author: Nathan Baker Parameters: thee  Pointer to Vmgrid object pt  Point to check Returns: Pointer to specified grid

int Vmgrid_gradient (  Vmgrid *  thee, double  pt[3], double  grad[3] )

Get first derivative values at a point. Author: Nathan Baker and Steve Bond Parameters: thee  Pointer to Vmgrid object pt  Location to evaluate gradient grad  Gradient Returns: 1 if successful, 0 if off grid

int Vmgrid_value (  Vmgrid *  thee, double  x[3], double *  value )

Get potential value (from mesh or approximation) at a point. Author: Nathan Baker Parameters: thee  Vmgrid obejct x  Point at which to evaluate potential value  Value of data at point x Returns: 1 if successful, 0 if off grid

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