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! libMeshb 7.79 basic example:
! read a quad mesh, split it into triangles and write the result back
! write an associated dummy .sol file containing some data
!> A FAIRE ajouter time
!> A FAIRE ajouter iteration
!> A FAIRE ajouter nom des champs
program test_libmeshb_f90
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
use iso_fortran_env
use iso_c_binding, only: C_NULL_CHAR
use libmeshb7
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
implicit none
integer(int64) :: InpMsh, OutMsh, OutSol
character(80) :: InpFile
character(80) :: OutFile
character(80) :: SolFile
integer(int32) :: i
integer(int32) :: NmbVer,NmbQad,NmbTri,ver,dim,res,kwd
integer(int32) :: NmbField,ho,s,d
integer(int32), pointer :: fields(:)
character(32) , pointer :: fieldsName(:)=>null()
real(real64) , pointer :: sol(:)
real(real64) , pointer :: VerTab(:,:)
integer(int32), pointer :: VerRef( :)
integer(int32), pointer :: QadTab(:,:)
integer(int32), pointer :: QadRef( :)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
print '(/"test_libmeshb_f90")'
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
InpFile='../sample_meshes/quad.mesh'
OutFile='./tri.mesh'
SolFile='./tri.sol'
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Open the quadrilateral mesh file for reading
print '(/"Input Mesh Open : ",a )',trim(InpFile)
InpMsh=GmfOpenMeshF90(name=trim(InpFile),GmfKey=GmfRead,ver=ver,dim=dim)
print '( "Input Mesh Idx : ",i0)',InpMsh
print '( "Input Mesh ver : ",i0)',ver
print '( "Input Mesh dim : ",i0)',dim
if( InpMsh==0 ) stop ' InpMsh = 0'
if( ver<=1 ) stop ' version <= 1'
if( dim/=3 ) stop ' dimension <> 3'
! Read the vertices
NmbVer = GmfstatkwdF90(unit=InpMsh, GmfKey=GmfVertices)
print '( "Input Mesh NmbVer : ",i0)', NmbVer
allocate(VerTab(1:3,1:NmbVer))
allocate(VerRef( 1:NmbVer))
res=GmfGotoKwdF90(unit=InpMsh, GmfKey=GmfVertices)
do i=1,NmbVer
res=GmfGetLineF90(unit=InpMsh, GmfKey=GmfVertices, Tab=VerTab(:,i), Ref=VerRef(i))
end do
! Read the quads
NmbQad = GmfstatkwdF90(unit=InpMsh, GmfKey=GmfQuadrilaterals)
print '( "Input Mesh NmbQad : ",i0)', NmbQad
allocate(QadTab(1:4,1:NmbQad))
allocate(QadRef( 1:NmbQad))
res=GmfgotokwdF90(unit=InpMsh, GmfKey=GmfQuadrilaterals)
do i=1,NmbQad
res=GmfGetLineF90(unit=InpMsh, GmfKey=GmfQuadrilaterals, Tab=QadTab(:,i), Ref=QadRef(i))
enddo
! Close the quadrilateral mesh
res=GmfCloseMeshF90(unit=InpMsh)
print '("Input Mesh Close : ",a)',trim(InpFile)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Create a triangular mesh
NmbTri=2*NmbQad
print '(/"Output Mesh Open : ",a )',trim(OutFile)
OutMsh=GmfOpenMeshF90(name=trim(OutFile),GmfKey=GmfWrite,ver=ver,dim=dim)
print '( "Output Mesh Idx : ",i0)',InpMsh
print '( "Output Mesh ver : ",i0)',ver
print '( "Output Mesh dim : ",i0)',dim
if( OutMsh==0 ) STOP ' OutMsh = 0'
! Set the number of vertices
res=GmfSetKwdF90(unit=OutMsh, GmfKey=GmfVertices, Nmb=NmbVer)
print '( "Output Mesh NmbVer : ",i0)', NmbVer
! Then write them down
do i=1,NmbVer
res=GmfSetLineF90(unit=OutMsh, GmfKey=GmfVertices, Tab=VerTab(:,i), Ref=VerRef(i))
end do
! Write the triangles
res=GmfSetKwdF90(unit=OutMsh, GmfKey=GmfTriangles, Nmb=NmbTri)
print '( "Output Mesh NmbTri : ",i0)', NmbTri
do i=1,NmbQad
res=GmfSetLineF90(unit=OutMsh, GmfKey=GmfTriangles, Tab=QadTab(1:3,i), Ref=QadRef(i))
! Modify the quad to build the other triangle's diagonal
QadTab(2,i) = QadTab(3,i)
QadTab(3,i) = QadTab(4,i)
res=GmfSetLineF90(unit=OutMsh, GmfKey=GmfTriangles, Tab=QadTab(1:3,i), Ref=QadRef(i))
end do
! Don't forget to close the file
res=GmfCloseMeshF90(unit=OutMsh)
print '("Output Mesh Close : ",a)',trim(OutFile)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
! Create a solution file
print '(/"Output Solu Open : ",a )',trim(SolFile)
OutSol=GmfOpenMeshF90(name=trim(SolFile),GmfKey=GmfWrite,ver=ver,dim=dim)
print '( "Output Solu Idx : ",i0)',OutSol
print '( "Output Solu ver : ",i0)',ver
print '( "Output Solu dim : ",i0)',dim
if( OutSol==0 ) STOP ' OutSol = 0'
! Set the solution kinds
NmbField=3
allocate( fields (1:NmbField))
allocate( fieldsName(1:NmbField))
fields(1:NmbField) = [GmfSca,GmfVec,GmfSca]
fieldsName(1:NmbField)=['sca_1','vec_1','sca_2']
!nomDesChamps : block
! integer :: iField,nChar
! character(:), pointer :: fieldName=>null()
! res=GmfSetKwdF90(unit=OutSol, GmfKey=GmfReferenceStrings, Nmb=NmbField)
! do iField=1,NmbField
! nChar=len_trim(fieldsName(iField)) ! print '("nChar: ",i0)',nChar
! allocate(character(len=nChar+3) :: fieldName)
! write(fieldName,'(a,1x,i0,a)')trim(fieldsName(iField)),iField,C_NULL_CHAR
! print '("fieldName: ",a)',fieldName
!
! !ress=GmfSetLin(unit=OutSol, GmfKey=GmfReferenceStrings, GmfSolAtVertices, 1, fieldName)
!
! deallocate(fieldName)
! enddo
!end block nomDesChamps
allocate(sol(1:5)) ! 1+ dim+ 1
print '( "Output Solu NmbVer : ",i0)',NmbVer
print '( "Output Solu nFields : ",i0)',NmbField
print '( "Output Solu fields : ", *(i0,1x))',fields(1:NmbField)
! Set the number of solutions (one per vertex)
res=GmfSetKwdF90(unit=OutSol, GmfKey=GmfSolAtVertices, Nmb=NmbVer, d=NmbField, t=fields(1:NmbField), s=0, ho=ho)
! Write the dummy solution fields
do i=1,NmbVer
sol( 1)=VerTab(1,i)
sol(2:4)=[VerTab(1,i),VerTab(2,i),0d0]
sol( 5)=VerTab(2,i)
res=GmfSetLineF90(unit=OutMsh, GmfKey=GmfSolAtVertices, dTab=sol(:))
enddo
! Don't forget to close the file
res=GmfCloseMeshF90(unit=OutSol)
print '("Output Solu Close : ",a)',trim(SolFile)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
!> Cleanning Memory
deallocate(VerTab,VerRef)
deallocate(QadTab,QadRef)
deallocate(fields,fieldsName,sol)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
!> User Control
print '(/"Control:"/"vizir4 -in ",a," -sol ",a/)',trim(OutFile),trim(SolFile)
!<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
end program test_libmeshb_f90
|
