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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<TITLE>DMNetworkGetComponent</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/DMNetwork/DMNetworkGetComponent.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMNetworkGetComponent"><H1>DMNetworkGetComponent</H1></A>
Returns the network component and its key 
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdmnetwork.h"  
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DMNetwork/DMNetworkGetComponent.html#DMNetworkGetComponent">DMNetworkGetComponent</A>(<A HREF="../DM/DM.html#DM">DM</A> dm, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> p, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> compnum, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *key, void **component)
</PRE>
Not Collective
<P>
Input Parameters
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm </B></TD><TD>- DMNetwork object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>p  </B></TD><TD>- edge or vertex point
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>compnum </B></TD><TD>- component number
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>compkey </B></TD><TD>- the key set for this computing during registration
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>component </B></TD><TD>- the component data
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
<H3><FONT COLOR="#CC3333">Typical usage</FONT></H3>
<P>
DMNetworkGetVertex/EdgeRange(dm,&amp;Start,&amp;End);
Loop over vertices or edges
<A HREF="../DMNetwork/DMNetworkGetNumComponents.html#DMNetworkGetNumComponents">DMNetworkGetNumComponents</A>(dm,v,&amp;numcomps);
Loop over numcomps
<A HREF="../DMNetwork/DMNetworkGetComponent.html#DMNetworkGetComponent">DMNetworkGetComponent</A>(dm,v,compnum,&amp;key,&amp;component);
<P>

<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
 <A HREF="../DMNetwork/DMNetworkGetNumComponents.html#DMNetworkGetNumComponents">DMNetworkGetNumComponents</A>, <A HREF="../DMNetwork/DMNetworkGetVariableOffset.html#DMNetworkGetVariableOffset">DMNetworkGetVariableOffset</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/dm/impls/network/network.c.html#DMNetworkGetComponent">src/dm/impls/network/network.c</A>
<BR><A HREF="./index.html">Index of all DMNetwork routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
</BODY></HTML>