[cig-commits] r4613 - short/3D/PyLith/branches/pylith-0.8/pylith3d/libpylith3d

[willic3 at geodynamics.org]

Author: willic3
Date: 2006-09-25 12:53:38 -0700 (Mon, 25 Sep 2006)
New Revision: 4613

Added:
   short/3D/PyLith/branches/pylith-0.8/pylith3d/libpylith3d/plintet2d.f
Log:
Created routine to generate coordinate-independent surface integration
info for a linear tet.


Added: short/3D/PyLith/branches/pylith-0.8/pylith3d/libpylith3d/plintet2d.f
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/pylith3d/libpylith3d/plintet2d.f	2006-09-25 19:31:03 UTC (rev 4612)
+++ short/3D/PyLith/branches/pylith-0.8/pylith3d/libpylith3d/plintet2d.f	2006-09-25 19:53:38 UTC (rev 4613)
@@ -0,0 +1,99 @@
+c -*- Fortran -*-
+c
+c~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+c
+c  PyLith by Charles A. Williams, Brad Aagaard, and Matt Knepley
+c
+c  Copyright (c) 2004-2006 Rensselaer Polytechnic Institute
+c
+c  Permission is hereby granted, free of charge, to any person obtaining
+c  a copy of this software and associated documentation files (the
+c  "Software"), to deal in the Software without restriction, including
+c  without limitation the rights to use, copy, modify, merge, publish,
+c  distribute, sublicense, and/or sell copies of the Software, and to
+c  permit persons to whom the Software is furnished to do so, subject to
+c  the following conditions:
+c
+c  The above copyright notice and this permission notice shall be
+c  included in all copies or substantial portions of the Software.
+c
+c  THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
+c  EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
+c  MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
+c  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+c  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+c  OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
+c  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+c
+c~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+c
+c
+      subroutine plintet2d(sh,gauss,nsnodes,nsgauss,intord)
+c
+c... Subroutine to compute surface shape functions in natural
+c    coordinates, integration points, and weights for a linear
+c    tetrahedron.
+c
+      include "implicit.inc"
+c
+c...  parameter definitions
+c
+      include "ndimens.inc"
+      include "nshape.inc"
+      include "nconsts.inc"
+      include "rconsts.inc"
+c
+c...  subroutine arguments
+c
+      integer nsnodes,nsgauss,intord
+      double precision sh(nsd,nsnodes,nsgauss)
+      double precision gauss(nsd,nsgauss)
+c
+c...  local constants
+c
+      double precision r(3),s(3),t(3)
+      data t/ 1d0, 0d0, 0d0/
+      data r/ 0d0, 1d0, 0d0/
+      data s/ 0d0, 0d0, 1d0/
+c
+c...  intrinsic functions
+c
+c
+c...  user-defined functions
+c
+c
+c...  local variables
+c
+      integer i
+      double precision rr,ss,tt
+      double precision triarea
+c
+c...  definitions
+c
+      triarea=half
+c
+c...  Linear triangle definition
+c     One-point integration is used in all cases.
+c
+      gauss(1,1)=third
+      gauss(2,1)=third
+      gauss(3,1)=triarea
+c
+      do i=1,nsnodes
+        rr=r(i)*gauss(1,1)
+        ss=s(i)*gauss(2,1)
+        tt=t(i)*gauss(2,1)
+        sh(3,i,1)=rr+ss+tt
+        sh(1,i,1)=r(i)-t(i)
+        sh(2,i,1)=s(i)-t(i)
+      end do
+c
+      return
+      end
+c
+c version
+c $Id: plintet2d.f,v 1.4 2005/03/22 04:45:55 willic3 Exp $
+c
+c Generated automatically by Fortran77Mill on Wed May 21 14:15:03 2003
+c
+c End of file