MED fichier
UsesCase_MEDmesh_5.f90
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1 !* This file is part of MED.
2 !*
3 !* COPYRIGHT (C) 1999 - 2017 EDF R&D, CEA/DEN
4 !* MED is free software: you can redistribute it and/or modify
5 !* it under the terms of the GNU Lesser General Public License as published by
6 !* the Free Software Foundation, either version 3 of the License, or
7 !* (at your option) any later version.
8 !*
9 !* MED is distributed in the hope that it will be useful,
10 !* but WITHOUT ANY WARRANTY; without even the implied warranty of
11 !* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 !* GNU Lesser General Public License for more details.
13 !*
14 !* You should have received a copy of the GNU Lesser General Public License
15 !* along with MED. If not, see <http://www.gnu.org/licenses/>.
16 !*
17 
18 !*
19 !*
20 !* Use case 5 : read a 2D structured mesh
21 !*
22 
24 
25  implicit none
26  include 'med.hf90'
27 
28  integer cret
29  integer fid, nmesh, it, naxis, axis
30  integer coocha, geotra
31  character(64) :: mname = "2D structured mesh"
32  character(200) :: desc
33  character(16) :: dtunit
34  integer nstep, mdim, sdim, stype, mtype, atype, asize
35  integer gtype, ncell
36  character(16), dimension(:), allocatable :: aname
37  character(16), dimension (:), allocatable :: aunit
38  real*8, dimension (:), allocatable :: cooXaxis
39  real*8, dimension (:), allocatable :: cooYaxis
40  character*16, dimension (:), allocatable :: cnames
41 
42  ! open MED file
43  call mfiope(fid,'UsesCase_MEDmesh_4.med',med_acc_rdonly, cret)
44  if (cret .ne. 0 ) then
45  print *,'ERROR : open file'
46  call efexit(-1)
47  endif
48 
49  ! ... we know that the MED file has only one mesh,
50  ! a real code working would check ...
51 
52  ! read computation space dimension
53  call mmhnan(fid,mname,naxis,cret)
54  if (cret .ne. 0 ) then
55  print *,'Read number of axis in the mesh'
56  call efexit(-1)
57  endif
58  print *,'Number of axis in the mesh = ',naxis
59 
60  ! read mesh informations
61  allocate ( aname(naxis), aunit(naxis) ,stat=cret )
62  if (cret > 0) then
63  print *,'Memory allocation'
64  call efexit(-1)
65  endif
66 
67  call mmhmin(fid, mname, sdim, mdim, mtype, desc, dtunit, stype, nstep, atype, aname, aunit, cret)
68  if (cret .ne. 0 ) then
69  print *,'Read mesh informations'
70  call efexit(-1)
71  endif
72  print *,"mesh name =", mname
73  print *,"space dim =", sdim
74  print *,"mesh dim =", mdim
75  print *,"mesh type =", mtype
76  print *,"mesh description =", desc
77  print *,"dt unit = ", dtunit
78  print *,"sorting type =", stype
79  print *,"number of computing step =", nstep
80  print *,"coordinates axis type =", atype
81  print *,"coordinates axis name =", aname
82  print *,"coordinates axis units =", aunit
83  deallocate(aname, aunit)
84 
85  ! read grid type
86  call mmhgtr(fid,mname,gtype,cret)
87  if (cret .ne. 0 ) then
88  print *,'Read grid type'
89  call efexit(-1)
90  endif
91  print *,"grid type =", gtype
92 
93  ! ... we know that we the mesh is a cartesian grid,
94  ! a real code working would check ...
95 
96  ! read the axis coordinates (MED_CARTESIAN coordinates system)
97  ! X
98  axis = 1
99  call mmhnme(fid,mname,med_no_dt,med_no_it,med_node,med_none,med_coordinate_axis1,med_no_cmode,coocha,geotra,asize,cret)
100  if (cret .ne. 0 ) then
101  print *,'Read number of coordinates on X axis '
102  call efexit(-1)
103  endif
104  print *,"Number of coordinates on X axis =", asize
105  ncell = asize-1
106 
107  allocate ( cooxaxis(asize),stat=cret )
108  if (cret > 0) then
109  print *,'Memory allocation'
110  call efexit(-1)
111  endif
112 
113  call mmhgcr(fid,mname,med_no_dt,med_no_it,axis,cooxaxis,cret)
114  if (cret .ne. 0 ) then
115  print *,'Read axis X coordinates'
116  call efexit(-1)
117  endif
118  print *,"Axis X coordinates =", cooxaxis
119  deallocate(cooxaxis)
120 
121  ! Y
122  axis = 2
123  call mmhnme(fid,mname,med_no_dt,med_no_it,med_node,med_none,med_coordinate_axis2,med_no_cmode,coocha,geotra,asize,cret)
124  if (cret .ne. 0 ) then
125  print *,'Read number of coordinates on Y axis '
126  call efexit(-1)
127  endif
128  print *,"Number of coordinates on Y axis =", asize
129  ncell = ncell * (asize-1)
130 
131  allocate ( cooyaxis(asize),stat=cret )
132  if (cret > 0) then
133  print *,'Memory allocation'
134  call efexit(-1)
135  endif
136 
137  call mmhgcr(fid,mname,med_no_dt,med_no_it,axis,cooyaxis,cret)
138  if (cret .ne. 0 ) then
139  print *,'Read axis Y coordinates'
140  call efexit(-1)
141  endif
142  print *,"Axis Y coordinates =", cooyaxis
143  deallocate(cooyaxis)
144 
145  ! optionnal : read names for nodes or elements
146  print *,'ncell :', ncell
147  allocate ( cnames(ncell),stat=cret )
148  if (cret > 0) then
149  print *,'Memory allocation'
150  call efexit(-1)
151  endif
152 
153  call mmhear(fid,mname,med_no_dt,med_no_it,med_cell,med_quad4,cnames,cret)
154  if (cret .ne. 0 ) then
155  print *,'Read names for elements'
156  call efexit(-1)
157  endif
158  print *,'Cells names =', cnames
159  deallocate(cnames)
160 
161  ! close file
162  call mficlo(fid,cret)
163  if (cret .ne. 0 ) then
164  print *,'ERROR : close file'
165  call efexit(-1)
166  endif
167 
168 end program usescase_medmesh_5
169 
subroutine mficlo(fid, cret)
Definition: medfile.f:80
subroutine mmhnan(fid, name, naxis, cret)
Definition: medmesh.f:86
subroutine mmhgtr(fid, name, gtype, cret)
Definition: medmesh.f:241
subroutine mmhmin(fid, name, sdim, mdim, mtype, desc, dtunit, stype, nstep, atype, aname, aunit, cret)
Definition: medmesh.f:130
program usescase_medmesh_5
subroutine mmhear(fid, mname, numdt, numit, entype, geotype, ename, cret)
Definition: medmesh.f:529
subroutine mmhnme(fid, name, numdt, numit, entype, geotype, datype, cmode, chgt, tsf, n, cret)
Definition: medmesh.f:551
subroutine mmhgcr(fid, name, numdt, numit, axis, index, cret)
Definition: medmesh.f:404
subroutine mfiope(fid, name, access, cret)
Definition: medfile.f:41