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<TITLE>DASetRefinementFactor</TITLE>
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<A NAME="DASetRefinementFactor"><H1>DASetRefinementFactor</H1></A>
Set the ratios that the <A HREF="../DA/DA.html#DA">DA</A> grid is refined
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscda.h"
PetscErrorCode PETSCDM_DLLEXPORT DASetRefinementFactor(DA da, PetscInt refine_x, PetscInt refine_y,PetscInt refine_z)
</PRE>
Collective on <A HREF="../DA/DA.html#DA">DA</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>da </B></TD><TD>- the <A HREF="../DA/DA.html#DA">DA</A> object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>refine_x </B></TD><TD>- ratio of fine grid to coarse in x direction (2 by default)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>refine_y </B></TD><TD>- ratio of fine grid to coarse in y direction (2 by default)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>refine_z </B></TD><TD>- ratio of fine grid to coarse in z direction (2 by default)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-da_refine_x </B></TD><TD>- refinement ratio in x direction
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-da_refine_y </B></TD><TD>- refinement ratio in y direction
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-da_refine_y </B></TD><TD>- refinement ratio in z direction
</TD></TR></TABLE>
<P>
<P>
Notes: Pass <A HREF="../Sys/PETSC_IGNORE.html#PETSC_IGNORE">PETSC_IGNORE</A> to leave a value unchanged
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DA/DARefine.html#DARefine">DARefine</A>(), <A HREF="../DA/DAGetRefinementFactor.html#DAGetRefinementFactor">DAGetRefinementFactor</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/da/src/da2.c.html#DASetRefinementFactor">src/dm/da/src/da2.c</A>
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