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<TITLE>DMPlexComputeCellGeometryFEM</TITLE>
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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="DMPlexComputeCellGeometryFEM"><H1>DMPlexComputeCellGeometryFEM</H1></A>
Compute the Jacobian, inverse Jacobian, and Jacobian determinant at each quadrature point in the given cell
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdmplex.h"
PetscErrorCode DMPlexComputeCellGeometryFEM(DM dm, PetscInt cell, PetscFE fe, PetscReal *v0, PetscReal *J, PetscReal *invJ, PetscReal *detJ)
</PRE>
Collective on <A HREF="../DM/DM.html#DM">DM</A>
<P>
<H3><FONT COLOR="#CC3333">Input Arguments</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm </B></TD><TD>- the <A HREF="../DM/DM.html#DM">DM</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>cell </B></TD><TD>- the cell
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>fe </B></TD><TD>- the finite element containing the quadrature
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Arguments</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>v0 </B></TD><TD>- the translation part of this transform
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>J </B></TD><TD>- the Jacobian of the transform from the reference element at each quadrature point
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>invJ </B></TD><TD>- the inverse of the Jacobian at each quadrature point
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>detJ </B></TD><TD>- the Jacobian determinant at each quadrature point
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Fortran Notes</FONT></H3>
Since it returns arrays, this routine is only available in Fortran 90, and you must
include petsc.h90 in your code.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/DMGetCoordinateSection.html#DMGetCoordinateSection">DMGetCoordinateSection</A>(), DMGetCoordinateVec()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/impls/plex/plexgeometry.c.html#DMPlexComputeCellGeometryFEM">src/dm/impls/plex/plexgeometry.c</A>
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