MED fichier
usecases/f/UsesCase_MEDmesh_9.f
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2 C*
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15 C* along with MED. If not, see <http://www.gnu.org/licenses/>.
16 C*
17 
18 C******************************************************************************
19 C * How to create an unstructured mesh
20 C *
21 C * Use case 9 : 2D unstructured mesh with moving grid transformation
22 C *
23 C *
24 C *****************************************************************************
25  program usescase_medmesh_9
26 C
27  implicit none
28  include 'med.hf77'
29 C
30 C
31  integer cret
32  integer fid
33 C
34  character (MED_NAME_SIZE) mname
35  character (MED_NAME_SIZE) fname
36  character (MED_COMMENT_SIZE) cmt1,mdesc
37  integer sdim, mdim
38 C axis name
39  character (MED_SNAME_SIZE) axname(2)
40 C unit name
41  character (MED_SNAME_SIZE) unname(2)
42  real*8 inicoo(30)
43  integer nnodes, ntria3, nquad4
44 C tria connectivity
45  integer triacy(24)
46 C quad connectivity
47  integer quadcy(16)
48 C transformation matrix step 1
49  real*8 trama1(7)
50 C transformation matrix step 2
51  real*8 trama2(7)
52 
53  parameter(fname = "UsesCase_MEDmesh_9.med")
54  parameter(cmt1 = "A 2D unstructured mesh : 15 nodes, 12 cells")
55  parameter(mdesc = "A 2D unstructured mesh")
56  parameter(mname="2D unstructured mesh")
57  parameter(sdim=2, mdim=2)
58  parameter(nnodes=15,ntria3=8,nquad4=4)
59 
60  data axname /"x", "y"/
61  data unname /"cm", "cm"/
62  data inicoo /2.,1., 7.,1., 12.,1., 17.,1., 22.,1.,
63  & 2.,6., 7.,6., 12.,6., 17.,6., 22.,6.,
64  & 2.,11.,7.,11.,12.,11.,17.,11., 22.,11./
65  data triacy /1,7,6, 2,7,1, 3,7,2, 8,7,3,
66  & 13,7,8, 12,7,13, 11,7,12, 6,7,11/
67  data quadcy /3,4,9,8, 4,5,10,9,
68  & 15,14,9,10, 13,8,9,14/
69 C transformation matrix (step 1) : rotation about the Y-axis : 45 degrees
70  data trama1 /0.0, 0.0, 0.0, 0.92388, 0.0, 0.38268, 0.0/
71 C transformation matrix (step 2) : rotation about the Y-axis : 90 degrees
72  data trama2 /0.0, 0.0, 0.0, 0.707, 0.0, 0.707, 0.0/
73 C
74 C file creation
75  call mfiope(fid,fname,med_acc_creat,cret)
76  if (cret .ne. 0 ) then
77  print *,"ERROR : file creation"
78  call efexit(-1)
79  endif
80 C
81 C write a comment in the file
82  call mficow(fid,cmt1,cret)
83  if (cret .ne. 0 ) then
84  print *,"ERROR : write file description"
85  call efexit(-1)
86  endif
87 C
88 C mesh creation : a 2D unstructured mesh
89  call mmhcre(fid, mname, sdim, mdim, med_unstructured_mesh, mdesc,
90  & "", med_sort_dtit, med_cartesian, axname, unname, cret)
91  if (cret .ne. 0 ) then
92  print *,"ERROR : mesh creation"
93  call efexit(-1)
94  endif
95 C
96 C
97 C initial nodes coordinates in a cartesian axis in full interlace mode
98 C (X1,Y1, X2,Y2, X3,Y3, ...) with no iteration and computation step
99  call mmhcpw(fid, mname, med_no_dt, med_no_it, 0.0d0,
100  & med_compact_stmode, med_no_profile,
101  & med_full_interlace, med_all_constituent,
102  & nnodes, inicoo, cret)
103  if (cret .ne. 0 ) then
104  print *,"ERROR : nodes coordinates"
105  call efexit(-1)
106  endif
107 C
108 C
109 C cells connectivity is defined in nodal mode
110  call mmhypw(fid, mname, med_no_dt, med_no_it, 0.0d0,
111  & med_cell, med_tria3, med_nodal,
112  & med_compact_stmode, med_no_profile,
113  & med_full_interlace, med_all_constituent,
114  & ntria3, triacy, cret)
115  if (cret .ne. 0 ) then
116  print *,"ERROR : triangular cells connectivity"
117  call efexit(-1)
118  endif
119 C
120 C
121  call mmhypw(fid, mname, med_no_dt, med_no_it, 0.0d0,
122  & med_cell, med_quad4, med_nodal,
123  & med_compact_stmode, med_no_profile,
124  & med_full_interlace, med_all_constituent,
125  & nquad4, quadcy, cret)
126  if (cret .ne. 0 ) then
127  print *,"ERROR : quadrangular cells connectivity"
128  call efexit(-1)
129  endif
130 C
131 C
132 C Mesh deformation (nodes coordinates) in 2 steps
133 C A rotation by step for each node
134 C
135 C STEP 1 : dt1 = 5.5, it = 1
136  call mmhtfw(fid, mname, 1, 1, 5.5d0, trama1, cret)
137 C
138 C
139 C STEP 2 : dt2 = 8.9, it = 1
140  call mmhtfw(fid, mname, 2, 1, 8.9d0, trama2, cret)
141 C
142 C
143 C create family 0 : by default, all mesh entities family number is 0
144  call mfacre(fid, mname,med_no_name, 0, 0, med_no_group, cret)
145  if (cret .ne. 0 ) then
146  print *,"ERROR : create family 0"
147  call efexit(-1)
148  endif
149 C
150 C
151 C close file
152  call mficlo(fid,cret)
153  if (cret .ne. 0 ) then
154  print *,"ERROR : close file"
155  call efexit(-1)
156  endif
157 C
158 C
159  end
160 C