usecases/f/UsesCase_MEDmesh_10.f
C* This file is part of MED.
C*
C* COPYRIGHT (C) 1999 - 2020 EDF R&D, CEA/DEN
C* MED is free software: you can redistribute it and/or modify
C* it under the terms of the GNU Lesser General Public License as published by
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C* (at your option) any later version.
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C* but WITHOUT ANY WARRANTY; without even the implied warranty of
C* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
C* GNU Lesser General Public License for more details.
C*
C* You should have received a copy of the GNU Lesser General Public License
C* along with MED. If not, see <http://www.gnu.org/licenses/>.
C*
C******************************************************************************
C * How to create an unstructured mesh
C * Use case 10 : write a 2D unstructured mesh with 15 nodes, 8 triangular
C * cells, 4 quadrangular cells, and families
C *
C *****************************************************************************
program usescase_medmesh_10
C
implicit none
include 'med.hf77'
C
C
integer cret
integer*8 fid
C space dim, mesh dim
integer sdim, mdim
C axis name, unit name
character*16 axname(2), unname(2)
C mesh name, family name, time step unit, file name
character*64 mname, fyname, dtunit, finame
C mesh type, sorting type, grid type
integer mtype, stype, grtype
C family number, number of group
integer fnum, ngro
C group name
character*80 gname
C coordinates, date
real*8 coords(30), dt
integer nnodes, ntria3, nquad4
C triangular and quadrangular cells connectivity
integer tricon(24), quacon(16)
C family numbers
integer fanbrs(15)
C comment 1, mesh description
character*200 cmt1, mdesc
C
parameter(sdim = 2, mdim = 2)
parameter(mname = "2D unstructured mesh")
parameter(fyname = "BOUNDARY_VERTICES")
parameter(dtunit = " ")
parameter(dt = 0.0d0)
parameter(finame = "UsesCase_MEDmesh_10.med")
parameter(gname = "MESH_BOUNDARY_VERTICES")
parameter(nnodes = 15, ntria3 = 8, nquad4 = 4)
parameter(cmt1 ="A 2D unstructured mesh : 15 nodes, 12 cells")
parameter(mtype=med_unstructured_mesh, stype=med_sort_dtit )
parameter(mdesc = "A 2D unstructured mesh")
parameter(grtype=med_cartesian_grid)
C
data axname /"x" ,"y" /
data unname /"cm","cm"/
data coords /2.,1., 7.,1., 12.,1., 17.,1., 22.,1.,
& 2.,6., 7.,6., 12.,6., 17.,6., 22.,6.,
& 2.,11., 7.,11., 12.,11., 17.,11., 22.,11./
data tricon /1,7,6, 2,7,1, 3,7,2, 8,7,3,
& 13,7,8, 12,7,13, 11,7,12, 6,7,11/
data quacon /3,4,9,8, 4,5,10,9,
& 15,14,9,10, 13,8,9,14/
data fanbrs /1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1/
C
C
C file creation
call mfiope(fid,finame,med_acc_creat,cret)
if (cret .ne. 0 ) then
print *,'ERROR : file creation'
call efexit(-1)
endif
C
C
C write a comment in the file
call mficow(fid,cmt1,cret)
if (cret .ne. 0 ) then
print *,'ERROR : write file description'
call efexit(-1)
endif
C
C
C mesh creation : a 2D unstructured mesh
call mmhcre(fid, mname, sdim, mdim, mtype, mdesc, dtunit,
& stype, grtype, axname, unname, cret)
if (cret .ne. 0 ) then
print *,'ERROR : mesh creation'
call efexit(-1)
endif
C
C
C nodes coordinates in a cartesian axis in full interlace mode
C (X1,Y1, X2,Y2, X3,Y3, ...) with no iteration and computation step
call mmhcow(fid,mname,med_no_dt,med_no_it,dt,
& med_full_interlace,nnodes,coords,cret)
if (cret .ne. 0 ) then
print *,'ERROR : write nodes coordinates description'
call efexit(-1)
endif
C
C
C cells connectiviy is defined in nodal mode
call mmhcyw(fid,mname,med_no_dt,med_no_it,dt,med_cell,
& med_tria3,med_nodal,med_full_interlace,
& ntria3,tricon,cret)
if (cret .ne. 0 ) then
print *,'ERROR : triangular cells connectivity'
call efexit(-1)
endif
call mmhcyw(fid,mname,med_no_dt,med_no_it,dt,med_cell,
& med_quad4,med_nodal,med_full_interlace,
& nquad4,quacon,cret)
if (cret .ne. 0 ) then
print *,'ERROR : quadrangular cells connectivity'
call efexit(-1)
endif
C
C
C create family 0 : by default, all mesh entities family number is 0
call mfacre(fid,mname,med_no_name,0,0,med_no_group,cret)
if (cret .ne. 0 ) then
print *,'ERROR : create family 0'
call efexit(-1)
endif
C
C
C create a family for boundary vertices : by convention a nodes family number is > 0,
C and an element family number is < 0
fnum = 1
ngro = 1
call mfacre(fid, mname, fyname, fnum, ngro, gname, cret)
if (cret .ne. 0 ) then
print *,'ERROR : create family 0'
call efexit(-1)
endif
C
C
C write family number for nodes
call mmhfnw(fid, mname, med_no_dt, med_no_it, med_node, med_none,
& nnodes, fanbrs, cret)
if (cret .ne. 0 ) then
print *,'ERROR : nodes family numbers ...'
call efexit(-1)
endif
C
C
C close file
call mficlo(fid,cret)
if (cret .ne. 0 ) then
print *,'ERROR : close file'
call efexit(-1)
endif
C
C
C
end
C
usescase_medmesh_10
program usescase_medmesh_10
Definition UsesCase_MEDmesh_10.f:24
mfacre
subroutine mfacre(fid, name, fname, fnum, ngro, gname, cret)
Cette routine permet la création d'une famille portant sur les entités d'un maillage.
Definition medfamily.f:19
mfiope
subroutine mfiope(fid, name, access, cret)
Ouverture d'un fichier MED.
Definition medfile.f:42
mficow
subroutine mficow(fid, cmt, cret)
Ecriture d'un descripteur dans un fichier MED.
Definition medfile.f:99
mficlo
subroutine mficlo(fid, cret)
Fermeture d'un fichier MED.
Definition medfile.f:82
mmhcre
subroutine mmhcre(fid, name, sdim, mdim, mtype, desc, dtunit, stype, atype, aname, aunit, cret)
Cette routine permet de créer un maillage dans un fichier.
Definition medmesh.f:20
mmhcyw
subroutine mmhcyw(fid, name, numdt, numit, dt, entype, geotype, cmode, swm, n, con, cret)
Definition medmesh.f:578
mmhfnw
subroutine mmhfnw(fid, name, numdt, numit, entype, geotype, n, num, cret)
Definition medmesh.f:466
mmhcow
subroutine mmhcow(fid, name, numdt, numit, dt, swm, n, coo, cret)
Definition medmesh.f:299