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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="DMCreateInjection"><H1>DMCreateInjection</H1></A>
Gets injection matrix between two <A HREF="../DM/DMDA.html#DMDA">DMDA</A> or DMComposite objects
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdm.h"
PetscErrorCode DMCreateInjection(DM dm1,DM dm2,VecScatter *ctx)
</PRE>
Collective on DM
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm1 </B></TD><TD>- the DM object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm2 </B></TD><TD>- the second, finer DM object
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>ctx </B> -the injection
<br>
<P>
<P>
Notes: For <A HREF="../DM/DMDA.html#DMDA">DMDA</A> objects this only works for "uniform refinement", that is the refined mesh was obtained <A HREF="../DM/DMRefine.html#DMRefine">DMRefine</A>() or the coarse mesh was obtained by
<A HREF="../DM/DMCoarsen.html#DMCoarsen">DMCoarsen</A>(). The coordinates set into the <A HREF="../DM/DMDA.html#DMDA">DMDA</A> are completely ignored in computing the injection.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/DMDestroy.html#DMDestroy">DMDestroy</A>(), <A HREF="../DM/DMView.html#DMView">DMView</A>(), <A HREF="../DM/DMCreateGlobalVector.html#DMCreateGlobalVector">DMCreateGlobalVector</A>(), <A HREF="../DM/DMCreateColoring.html#DMCreateColoring">DMCreateColoring</A>(), <A HREF="../DM/DMCreateMatrix.html#DMCreateMatrix">DMCreateMatrix</A>(), <A HREF="../DM/DMCreateInterpolation.html#DMCreateInterpolation">DMCreateInterpolation</A>()
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/interface/dm.c.html#DMCreateInjection">src/dm/interface/dm.c</A>
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