1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/DM/PetscDualSpaceGetPointSubspace.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>PetscDualSpaceGetPointSubspace</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<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/DM/PetscDualSpaceGetPointSubspace.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PetscDualSpaceGetPointSubspace"><H1>PetscDualSpaceGetPointSubspace</H1></A>
Get the subset of the dual space basis that is supported on a particular mesh point.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscfe.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DM/PetscDualSpaceGetPointSubspace.html#PetscDualSpaceGetPointSubspace">PetscDualSpaceGetPointSubspace</A>(<A HREF="../DM/PetscDualSpace.html#PetscDualSpace">PetscDualSpace</A> sp, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> point, <A HREF="../DM/PetscDualSpace.html#PetscDualSpace">PetscDualSpace</A> *bdsp)
</PRE>
If the dual space is not defined on the mesh point (e.g. if the space is discontinuous and pointwise values are not
defined on the element boundaries), or if the implementation of <A HREF="../DM/PetscDualSpace.html#PetscDualSpace">PetscDualSpace</A> does not support extracting
subspaces, then NULL is returned.
<P>
This does not increment the reference count on the returned dual space, and the user should not destroy it.
<P>
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>sp </B></TD><TD>- the <A HREF="../DM/PetscDualSpace.html#PetscDualSpace">PetscDualSpace</A> object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>point </B></TD><TD>- the point (in the dual space's <A HREF="../DM/DM.html#DM">DM</A>) for which the subspace is desired
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
bdsp - the subspace. Note that the functionals in the subspace are with respect to the intrinsic geometry of the
point, which will be of lesser dimension if height > 0.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/PetscDualSpace.html#PetscDualSpace">PetscDualSpace</A>
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/dt/dualspace/interface/dualspace.c.html#PetscDualSpaceGetPointSubspace">src/dm/dt/dualspace/interface/dualspace.c</A>
<BR><A HREF="./index.html">Index of all DM 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>
|