# UsesCase_MEDmesh_3.f90

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    00001 !*  This file is part of MED.
    00002 !*
    00003 !*  COPYRIGHT (C) 1999 - 2012  EDF R&D, CEA/DEN
    00004 !*  MED is free software: you can redistribute it and/or modify
    00005 !*  it under the terms of the GNU Lesser General Public License as published by
    00006 !*  the Free Software Foundation, either version 3 of the License, or
    00007 !*  (at your option) any later version.
    00008 !*
    00009 !*  MED is distributed in the hope that it will be useful,
    00010 !*  but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011 !*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00012 !*  GNU Lesser General Public License for more details.
    00013 !*
    00014 !*  You should have received a copy of the GNU Lesser General Public License
    00015 !*  along with MED.  If not, see <http://www.gnu.org/licenses/>.
    00016 !*
    00017
    00018 !*
    00019 !*  Use case 3 : read an unstructured mesh : generic approach
    00020 !*  - Computation step : NO
    00021 !*
    00022
    00023 program UsesCase_MEDmesh_3
    00024
    00025   implicit none
    00026   include 'med.hf90'
    00027
    00028   integer cret
    00029   integer fid, nmesh, imesh, naxis, igeo, geotyp, nelt
    00030   character(64)  :: mname, gtname
    00031   character(200) :: desc
    00032   character(16)  :: dtunit
    00033   integer nstep, mdim, sdim, stype, mtype, atype
    00034   integer coocha, geotra, nnodes, ngeo
    00035   character(16), dimension(:), allocatable :: aname
    00036   character(16), dimension (:), allocatable :: aunit
    00037   real*8, dimension(:), allocatable :: ncoord
    00038
    00039   integer, dimension(:), allocatable :: connectivity
    00040
    00041   ! open file             **
    00042   call mfiope(fid,'UsesCase_MEDmesh_1.med',MED_ACC_RDONLY, cret)
    00043   if (cret .ne. 0 ) then
    00044      print *,'ERROR : open file'
    00045      call efexit(-1)
    00046   endif
    00047
    00048   ! how many mesh in the file ? **
    00049   call mmhnmh(fid,nmesh,cret)
    00050   if (cret .ne. 0 ) then
    00051      print *,'Read how many mesh'
    00052      call efexit(-1)
    00053   endif
    00054   print *,'Number of mesh = ',nmesh
    00055
    00056   do imesh=1,nmesh
    00057
    00058      print *,'mesh iterator =',imesh
    00059
    00060      ! read computation space dimension **
    00061      call mmhnax(fid,imesh,naxis,cret)
    00062      if (cret .ne. 0 ) then
    00063         print *,'Read number of axis in the mesh'
    00064         call efexit(-1)
    00065      endif
    00066      print *,'Number of axis in the mesh  = ',naxis
    00067
    00068      allocate ( aname(naxis), aunit(naxis) ,STAT=cret )
    00069      if (cret > 0) then
    00070         print *,'Memory allocation'
    00071         call efexit(-1)
    00072      endif
    00073      ! read mesh informations **
    00074      call  mmhmii(fid, imesh, mname, sdim, mdim, mtype, desc, dtunit, stype, nstep, atype, aname, aunit, cret)
    00075      if (cret .ne. 0 ) then
    00076         print *,'Read mesh informations'
    00077         call efexit(-1)
    00078      endif
    00079      print *,"mesh name =", mname
    00080      print *,"space dim =", sdim
    00081      print *,"mesh dim =", mdim
    00082      print *,"mesh type =", mtype
    00083      print *,"mesh description =", desc
    00084      print *,"dt unit = ", dtunit
    00085      print *,"sorting type =", stype
    00086      print *,"number of computing step =", nstep
    00087      print *,"coordinates axis type =", atype
    00088      print *,"coordinates axis name =", aname
    00089      print *,"coordinates axis units =", aunit
    00090      deallocate(aname, aunit)
    00091
    00092      ! read how many nodes in the mesh
    00093      call mmhnme(fid,mname,MED_NO_DT,MED_NO_IT,MED_NODE,MED_NO_GEOTYPE,MED_COORDINATE,MED_NO_CMODE,coocha,geotra,nnodes,cret)
    00094      if (cret .ne. 0 ) then
    00095         print *,'Read how many nodes in the mesh'
    00096         call efexit(-1)
    00097      endif
    00098      print *,"number of nodes in the mesh =", nnodes
    00099
    00100      ! read mesh nodes coordinates
    00101      allocate ( ncoord(nnodes*2) ,STAT=cret )
    00102      if (cret > 0) then
    00103         print *,'Memory allocation'
    00104         call efexit(-1)
    00105      endif
    00106
    00107      call mmhcor(fid,mname,MED_NO_DT,MED_NO_IT,MED_FULL_INTERLACE,ncoord,cret)
    00108      if (cret .ne. 0 ) then
    00109         print *,'Nodes coordinates'
    00110         call efexit(-1)
    00111      endif
    00112      print *,"Nodes coordinates =", ncoord
    00113      deallocate(ncoord)
    00114
    00115      ! read number of geometrical types for cells
    00116      call mmhnme(fid,mname,MED_NO_DT,MED_NO_IT,MED_CELL,MED_GEO_ALL,MED_CONNECTIVITY,MED_NODAL,coocha,geotra,ngeo,cret)
    00117      if (cret .ne. 0 ) then
    00118         print *,'Read number of geometrical types for cells'
    00119         call efexit(-1)
    00120      endif
    00121      print *,"number of geometrical types for cells =", ngeo
    00122
    00123      do igeo=1,ngeo
    00124
    00125         print *,'mesh iterator =',imesh
    00126
    00127         ! get geometry type
    00128         call mmheni(fid,mname,MED_NO_DT,MED_NO_IT,MED_CELL,igeo,gtname,geotyp,cret)
    00129         if (cret .ne. 0 ) then
    00130            print *,'Read geometry type'
    00131            call efexit(-1)
    00132         endif
    00133         print *,"Geometry type =", geotyp
    00134
    00135         ! how many cells of type geotype ?
    00136         call mmhnme(fid,mname,MED_NO_DT,MED_NO_IT,MED_CELL,geotyp,MED_CONNECTIVITY,MED_NODAL,coocha,geotra,nelt,cret)
    00137         if (cret .ne. 0 ) then
    00138            print *,'Read number of cells in the geotype'
    00139            call efexit(-1)
    00140         endif
    00141         print *,"number of cells in the geotype =", nelt
    00142
    00143         ! read mesh nodes coordinates
    00144         allocate ( connectivity(nelt*4) ,STAT=cret )
    00145         if (cret > 0) then
    00146            print *,'Memory allocation - connectivity'
    00147            call efexit(-1)
    00148         endif
    00149
    00150         ! read cells connectivity in the mesh
    00151         call mmhcyr(fid,mname,MED_NO_DT,MED_NO_IT,MED_CELL,geotyp,MED_NODAL,MED_FULL_INTERLACE,connectivity,cret)
    00152         if (cret .ne. 0 ) then
    00153            print *,'Connectivity'
    00154            call efexit(-1)
    00155         endif
    00156         print *,"Connectivity =", connectivity
    00157         deallocate(connectivity)
    00158
    00159      enddo
    00160   enddo
    00161
    00162   ! close file **
    00163   call mficlo(fid,cret)
    00164   if (cret .ne. 0 ) then
    00165      print *,'ERROR :  close file'
    00166      call efexit(-1)
    00167   endif
    00168
    00169 end program UsesCase_MEDmesh_3
    00170