UsesCase_MEDmesh_2.f90
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! This file is part of MED.
!*
!* COPYRIGHT (C) 1999 - 2021 EDF R&D, CEA/DEN
!* MED is free software: you can redistribute it and/or modify
!* it under the terms of the GNU Lesser General Public License as published by
!* the Free Software Foundation, either version 3 of the License, or
!* (at your option) any later version.
!*
!* MED 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 Lesser General Public License for more details.
!*
!* You should have received a copy of the GNU Lesser General Public License
!* along with MED. If not, see <http://www.gnu.org/licenses/>.
!*
!*
!* Use case 2 read a 2D unstructured mesh with 15 nodes,
!* 8 triangular cells, 4 triangular cells
!* - Computation step : NO
!*
program usescase_medmesh_2
implicit none
include 'med.hf90'
integer cret
integer*8 fid
integer nmesh, it, naxis
character(64) :: mname = "2D unstructured mesh"
character(200) :: desc
character(16) :: dtunit
integer nstep, mdim, sdim, stype, mtype, atype
character(16), dimension(:), allocatable :: aname
character(16), dimension (:), allocatable :: aunit
real*8, dimension(:), allocatable :: ncoord
integer coocha, geotra, nnodes, ntria3, nquad4
integer, dimension(:), allocatable :: tricon
integer, dimension(:), allocatable :: quacon
! open MED file with READ ONLY access mode **
call mfiope(fid,'UsesCase_MEDmesh_1.med',med_acc_rdonly, cret)
if (cret .ne. 0 ) then
print *,'ERROR : open file'
call efexit(-1)
endif
! ... we know that the MED file has only one mesh,
! a real code working would check ...
! read mesh informations : computation space dimension
call mmhnan(fid,mname,naxis,cret)
if (cret .ne. 0 ) then
print *,'Read number of axis in the mesh'
call efexit(-1)
endif
print *,'Number of axis in the mesh = ',naxis
! read mesh informations
allocate ( aname(naxis), aunit(naxis) ,stat=cret )
if (cret > 0) then
print *,'Memory allocation'
call efexit(-1)
endif
call mmhmin(fid, mname, sdim, mdim, mtype, desc, dtunit, stype, nstep, atype, aname, aunit, cret)
if (cret .ne. 0 ) then
print *,'Read mesh informations'
call efexit(-1)
endif
print *,"mesh name =", mname
print *,"space dim =", sdim
print *,"mesh dim =", mdim
print *,"mesh type =", mtype
print *,"mesh description =", desc
print *,"dt unit = ", dtunit
print *,"sorting type =", stype
print *,"number of computing step =", nstep
print *,"coordinates axis type =", atype
print *,"coordinates axis name =", aname
print *,"coordinates axis units =", aunit
deallocate(aname, aunit)
! read how many nodes in the mesh **
call mmhnme(fid,mname,med_no_dt,med_no_it,med_node,med_no_geotype,med_coordinate,med_no_cmode,coocha,geotra,nnodes,cret)
if (cret .ne. 0 ) then
print *,'Read how many nodes in the mesh'
call efexit(-1)
endif
print *,"number of nodes in the mesh =", nnodes
! we know that we only have MED_TRIA3 and MED_QUAD4 in the mesh
! a real code working would check all MED geometry cell types
! read how many triangular cells in the mesh
call mmhnme(fid,mname,med_no_dt,med_no_it,med_cell,med_tria3,med_connectivity,med_nodal,coocha,geotra,ntria3,cret)
if (cret .ne. 0 ) then
print *,'Read how many nodes in the mesh'
call efexit(-1)
endif
print *,"number of triangular cells in the mesh =", ntria3
! read how many quadrangular cells in the mesh
call mmhnme(fid,mname,med_no_dt,med_no_it,med_cell,med_quad4,med_connectivity,med_nodal,coocha,geotra,nquad4,cret)
if (cret .ne. 0 ) then
print *,'Read how many nodes in the mesh'
call efexit(-1)
endif
print *,"number of quadrangular cells in the mesh =", nquad4
! read mesh nodes coordinates
allocate (ncoord(nnodes*2),stat=cret)
if (cret > 0) then
print *,'Memory allocation'
call efexit(-1)
endif
call mmhcor(fid,mname,med_no_dt,med_no_it,med_full_interlace,ncoord,cret)
if (cret .ne. 0 ) then
print *,'Nodes coordinates'
call efexit(-1)
endif
print *,"Nodes coordinates =", ncoord
deallocate(ncoord)
! read cells connectivity in the mesh
allocate ( tricon(ntria3 * 3) ,stat=cret )
if (cret > 0) then
print *,'Memory allocation'
call efexit(-1)
endif
call mmhcyr(fid,mname,med_no_dt,med_no_it,med_cell,med_tria3,med_nodal,med_full_interlace,tricon,cret)
if (cret .ne. 0 ) then
print *,'MED_TRIA3 connectivity'
call efexit(-1)
endif
print *,"MED_TRIA3 connectivity =", tricon
deallocate(tricon)
allocate ( quacon(nquad4*4) ,stat=cret )
if (cret > 0) then
print *,'Memory allocation'
call efexit(-1)
endif
call mmhcyr(fid,mname,med_no_dt,med_no_it,med_cell,med_quad4,med_nodal,med_full_interlace,quacon,cret)
if (cret .ne. 0 ) then
print *,'MED_QUAD4 connectivity'
call efexit(-1)
endif
print *,"MED_QUAD4 connectivity =", quacon
deallocate(quacon)
! we know that the family number of nodes and elements is 0, a real working would check ...
! close file **
call mficlo(fid,cret)
if (cret .ne. 0 ) then
print *,'ERROR : close file'
call efexit(-1)
endif
end program usescase_medmesh_2
mmhnme
subroutine mmhnme(fid, name, numdt, numit, entype, geotype, datype, cmode, chgt, tsf, n, cret)
Cette routine permet de lire le nombre d'entités dans un maillage pour une étape de calcul donnée.
Definition: medmesh.f:551
mficlo
subroutine mficlo(fid, cret)
Fermeture d'un fichier MED.
Definition: medfile.f:82
mmhnan
subroutine mmhnan(fid, name, naxis, cret)
Cette routine permet de lire dans un maillage le nombre d'axes du repère des coordonnées des noeuds a...
Definition: medmesh.f:86
mfiope
subroutine mfiope(fid, name, access, cret)
Ouverture d'un fichier MED.
Definition: medfile.f:42
mmhcor
subroutine mmhcor(fid, name, numdt, numit, swm, coo, cret)
Cette routine permet de lire dans un maillage le tableau des coordonnées des noeuds,...
Definition: medmesh.f:320
usescase_medmesh_2
program usescase_medmesh_2
Definition: UsesCase_MEDmesh_2.f90:24
mmhmin
subroutine mmhmin(fid, name, sdim, mdim, mtype, desc, dtunit, stype, nstep, atype, aname, aunit, cret)
Cette routine permet de lire les informations relatives à un maillage en précisant son nom.
Definition: medmesh.f:130
mmhcyr
subroutine mmhcyr(fid, name, numdt, numit, entype, geotype, cmode, swm, con, cret)
Cette routine permet de lire dans un maillage le tableau des connectivités pour un type géométrique d...
Definition: medmesh.f:600