petsc-3.8.4 2018-03-24

PetscDualSpaceApplyDefault

Apply a functional from the dual space basis to an input function by assuming a point evaluation functional.

Synopsis

#include "petscfe.h" 
PetscErrorCode PetscDualSpaceApplyDefault(PetscDualSpace sp, PetscInt f, PetscReal time, PetscFECellGeom *cgeom, PetscInt Nc, PetscErrorCode (*func)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void *ctx, PetscScalar *value)

Input Parameters

	sp	- The PetscDualSpace object
	f	- The basis functional index
	time	- The time
	cgeom	- A context with geometric information for this cell, we use v0 (the initial vertex) and J (the Jacobian)
	Nc	- The number of components for the function
	func	- The input function
	ctx	- A context for the function

Output Parameter

value -The output value

Note: The calling sequence for the callback func is given by

func(PetscInt dim, PetscReal time, const PetscReal x[],

     PetscInt numComponents, PetscScalar values[], void *ctx)

and the idea is to evaluate the functional as an integral

n(f) = int dx n(x) . f(x)

where both n and f have Nc components.

PetscDualSpaceApplyDefault

Synopsis

Input Parameters

Output Parameter

Note: The calling sequence for the callback func is given by

See Also