petsc-3.11.3 2019-06-26
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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.

See Also

PetscViewerGLVisOpen(), PetscViewerCreate(), PetscViewerSetType(), PetscObjectSetName()

Level

intermediate

Location

src/sys/classes/viewer/impls/glvis/glvis.c

Examples

src/ksp/ksp/examples/tutorials/ex43.c.html

Implementations

PetscViewerGLVisSetFields_GLVis(PetscViewer viewer, PetscInt nfields, const char* fec_type[], PetscInt dim[], PetscErrorCode(*g2l)(PetscObject,PetscInt,PetscObject[],void*), PetscObject Vfield[], void* ctx, PetscErrorCode(*destroyctx) in src/sys/classes/viewer/impls/glvis/glvis.c

Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages