1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
4
<META NAME="GENERATOR" CONTENT="DOCTEXT">
5
<TITLE>GridSetMatPointBoundaryRectangular</TITLE>
7
<BODY BGCOLOR="FFFFFF">
8
<A NAME="GridSetMatPointBoundaryRectangular"><H1>GridSetMatPointBoundaryRectangular</H1></A>
9
his function sets Dirchlet boundary conditions on the linear system matrix arising from the underlying grid, and the default variable ordering can be overridden.
10
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
14
int GridSetMatPointBoundaryRectangular(int node, int field, PetscScalar diag, VarOrdering order, GMat A, void *ctx)
18
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
19
<TABLE border="0" cellpadding="0" cellspacing="0">
20
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>node </B></TD><TD>- The constrained node
22
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>field </B></TD><TD>- The field to which the conditions apply
24
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>diag </B></TD><TD>- The scalar to be placed on the diagonal
26
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>order </B></TD><TD>- The test variable ordering
28
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- The user-supplied context
31
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
32
<DT><B>A </B> -The system matrix
37
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
38
boundary conditions, finite element
40
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
41
<A HREF="../Mesh/MeshGetBoundaryStart.html#MeshGetBoundaryStart">MeshGetBoundaryStart</A>
42
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
43
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/grid/interface/gridBC.c.html#GridSetMatPointBoundaryRectangular">src/grid/interface/gridBC.c</A>
44
<BR><A HREF="./index.html">Index of all Grid routines</A>
45
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
46
<BR><A HREF="../singleindex.html">Index of all manual pages</A>