!
!     CalculiX - A 3-dimensional finite element program
!              Copyright (C) 1998-2018 Guido Dhondt
!
!     This program is free software; you can redistribute it and/or
!     modify it under the terms of the GNU General Public License as
!     published by the Free Software Foundation(version 2);
!     
!
!     This program is distributed in the hope that it will be useful,
!     but WITHOUT ANY WARRANTY; without even the implied warranty of 
!     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
!     GNU General Public License for more details.
!
!     You should have received a copy of the GNU General Public License
!     along with this program; if not, write to the Free Software
!     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
!
      subroutine calcrhoelcomp(nef,vel,shcon,ielmatf,ntmat_,
     &  mi,nefa,nefb)
!
!     calculation of rho in the element centers (compressible
!     fluids)
!
      implicit none
!
      integer nef,i,imat,ntmat_,mi(*),ielmatf(mi(3),*),nefa,nefb
!
      real*8 t1l,vel(nef,0:7),shcon(0:3,ntmat_,*)
!
      intent(in) nef,shcon,ielmatf,ntmat_,mi,nefa,nefb
!
      intent(inout) vel
!     
      do i=nefa,nefb
         t1l=vel(i,0)
         imat=ielmatf(1,i)
         vel(i,5)=vel(i,4)/(shcon(3,1,imat)*t1l)
c         write(*,*) 'calcrhoelcomp ',i,t1l,vel(i,4),vel(i,5),
c     &         shcon(3,1,imat)
      enddo
!            
      return
      end
