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<TITLE>PetscViewerGLVisSetFields</TITLE>
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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.10.3 v3.10.3 docs/manualpages/Viewer/PetscViewerGLVisSetFields.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscViewerGLVisSetFields"><H1>PetscViewerGLVisSetFields</H1></A>
Sets the required information to visualize different fields from a vector.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscviewer.h"
#include "petscsys.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Viewer/PetscViewerGLVisSetFields.html#PetscViewerGLVisSetFields">PetscViewerGLVisSetFields</A>(<A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> viewer, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> nf, const char* fec_type[], <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> dim[], <A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A>(*g2l)(<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A>,<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>[],void*), <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> Vfield[], void* ctx, <A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A>(*destroyctx)(void*))
</PRE>
Logically Collective on <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>viewer </B></TD><TD>- the <A HREF="../Viewer/PetscViewer.html#PetscViewer">PetscViewer</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nf </B></TD><TD>- number of fields to be visualized
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>fec_type </B></TD><TD>- the type of finite element to be used to visualize the data (see FiniteElementCollection::Name() in MFEM)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dim </B></TD><TD>- array of space dimension for field vectors (used to initialize the scene)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>g2lfields </B></TD><TD>- User routine to compute the local field vectors to be visualized; <A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A> is used in place of <A HREF="../Vec/Vec.html#Vec">Vec</A> on the prototype
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Vfield </B></TD><TD>- array of work vectors, one for each field
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- User context to store the relevant data to apply g2lfields
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>destroyctx </B></TD><TD>- Destroy function for userctx
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
g2lfields is called on the vector V to be visualized in order to extract the relevant dofs to be put in Vfield[], as
<PRE>
g2lfields((<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>)V,nfields,(<A HREF="../Sys/PetscObject.html#PetscObject">PetscObject</A>*)Vfield[],ctx).
</PRE>
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.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
PetscViewerGLVisOpen(), <A HREF="../Viewer/PetscViewerCreate.html#PetscViewerCreate">PetscViewerCreate</A>(), <A HREF="../Viewer/PetscViewerSetType.html#PetscViewerSetType">PetscViewerSetType</A>(), <A HREF="../Sys/PetscObjectSetName.html#PetscObjectSetName">PetscObjectSetName</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/sys/classes/viewer/impls/glvis/glvis.c.html#PetscViewerGLVisSetFields">src/sys/classes/viewer/impls/glvis/glvis.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex43.c.html">src/ksp/ksp/examples/tutorials/ex43.c.html</A><BR>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/sys/classes/viewer/impls/glvis/glvis.c.html#PetscViewerGLVisSetFields_GLVis(PetscViewer viewer, PetscInt nfields, const char* fec_type[], PetscInt dim[], PetscErrorCode(*g2l)(PetscObject,PetscInt,PetscObject[],void*), PetscObject Vfield[], void* ctx, PetscErrorCode(*destroyctx)">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</A><BR>
<BR><A HREF="./index.html">Index of all Viewer routines</A>
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