petsc-3.14.6 2021-03-30

PetscViewerGLVisSetFields

Sets the required information to visualize different fields from a vector.

Synopsis

#include "petscviewer.h" 
#include "petscsys.h"    
PetscErrorCode PetscViewerGLVisSetFields(PetscViewer viewer, PetscInt nf, const char* fec_type[], PetscInt dim[], PetscErrorCode(*g2l)(PetscObject,PetscInt,PetscObject[],void*), PetscObject Vfield[], void* ctx, PetscErrorCode(*destroyctx)(void*))

Logically Collective on PetscViewer

Input Parameters

	viewer	- the PetscViewer
	nf	- number of fields to be visualized
	fec_type	- the type of finite element to be used to visualize the data (see FiniteElementCollection::Name() in MFEM)
	dim	- array of space dimension for field vectors (used to initialize the scene)
	g2lfields	- User routine to compute the local field vectors to be visualized; PetscObject is used in place of Vec on the prototype
	Vfield	- array of work vectors, one for each field
	ctx	- User context to store the relevant data to apply g2lfields
	destroyctx	- Destroy function for userctx

Notes

g2lfields is called on the vector V to be visualized in order to extract the relevant dofs to be put in Vfield[], as

  g2lfields((PetscObject)V,nfields,(PetscObject*)Vfield[],ctx).

For vector spaces, the block size of Vfield[i] represents the vector dimension. It misses the Fortran bindings. The names of the Vfield vectors will be displayed in the window title.

Level

intermediate

PetscViewerGLVisSetFields

Synopsis

Input Parameters

Notes

See Also

Level

Location

Examples

Implementations