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<TITLE>PetscSectionGetFieldPointSyms</TITLE>
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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="PetscSectionGetFieldPointSyms"><H1>PetscSectionGetFieldPointSyms</H1></A>
Get the symmetries for a set of points in a field of a <A HREF="../IS/PetscSection.html#PetscSection">PetscSection</A> under specific orientations.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../IS/PetscSectionGetFieldPointSyms.html#PetscSectionGetFieldPointSyms">PetscSectionGetFieldPointSyms</A>(<A HREF="../IS/PetscSection.html#PetscSection">PetscSection</A> section, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> field, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> numPoints, const <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *points, const <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> ***perms, const <A HREF="../Sys/PetscScalar.html#PetscScalar">PetscScalar</A> ***rots)
</PRE>
Not collective
<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>section </B></TD><TD>- the section
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>field </B></TD><TD>- the field of the section
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>numPoints </B></TD><TD>- the number of points
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>points </B></TD><TD>- an array of size 2 * numPoints, containing a list of (point, orientation) pairs. (An orientation is an
arbitrary integer: its interpretation is up to sym. Orientations are used by <A HREF="../DM/DM.html#DM">DM</A>: for their interpretation in that
context, see <A HREF="../DMPLEX/DMPlexGetConeOrientation.html#DMPlexGetConeOrientation">DMPlexGetConeOrientation</A>()).
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>perms </B></TD><TD>- The permutations for the given orientations (or NULL if there is no symmetry or the permutation is the identity).
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rots </B></TD><TD>- The field rotations symmetries for the given orientations (or NULL if there is no symmetry or the rotations are all
identity).
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../IS/PetscSectionGetPointSyms.html#PetscSectionGetPointSyms">PetscSectionGetPointSyms</A>(), <A HREF="../IS/PetscSectionRestoreFieldPointSyms.html#PetscSectionRestoreFieldPointSyms">PetscSectionRestoreFieldPointSyms</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/vec/is/utils/vsectionis.c.html#PetscSectionGetFieldPointSyms">src/vec/is/utils/vsectionis.c</A>
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