Opm::WachspressCoord Class Reference

#include <WachspressCoord.hpp>

Classes
struct	CornerInfo

Public Member Functions
	WachspressCoord (const UnstructuredGrid &grid)
int	numCorners (const int cell) const
void	cartToBary (const int cell, const double *x, double *xb) const
const SparseTable< CornerInfo > &	cornerInfo () const
const std::vector< int > &	adjacentFaces () const

Detailed Description

Class capable of computing Wachspress coordinates in 2d and 3d. The formula used is a modification of the formula given in: M. Meyer, A. Barr, H. Lee, and M. Desbrun. Generalized barycentric coordinates on irregular poly- gons. Journal of Graphics Tools, 7(1):13–22, 2002.

Constructor & Destructor Documentation

Opm::WachspressCoord::WachspressCoord ( const UnstructuredGrid &  grid )

explicit

Constructor.

Parameters

[in]

grid

A grid.

Member Function Documentation

const std::vector<int>& Opm::WachspressCoord::adjacentFaces

(

)

const

The class stores adjacent faces for each corner, made accessible for user convenience.

Returns

The vector of adjacent faces. Size = dim * #corners.

void Opm::WachspressCoord::cartToBary	(	const int	cell,
		const double *	x,
		double *	xb
	)		const

Compute generalized barycentric coordinates for some point x with respect to the vertices of a grid cell.

Parameters

[in]	cell	Cell in which to compute coordinates.
[in]	x	Coordinates of point in cartesian coordinates. Must be array of length grid.dimensions.
[out]	xb	Coordinates of point in barycentric coordinates. Must be array of length numCorners(cell).

const SparseTable<CornerInfo>& Opm::WachspressCoord::cornerInfo

(

)

const

The class stores some info for each corner, made accessible for user convenience.

Returns

The corner info container.

int Opm::WachspressCoord::numCorners

(

const int

cell

)

const

Count of vertices adjacent to a call.

Parameters

[in]

cell

A cell index.

Returns

Number of corners of cell.

---

The documentation for this class was generated from the following file:

• WachspressCoord.hpp