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mod_write_vtk.f90
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mod_write_vtk.f90
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module mod_write_vtk
use mod_read_gmsh, only: nbelm, nbnode, coord_nodes, id_nodes, fname
use mod_cell_2D
use mod_detect_nearest_neighbor
implicit none
contains
!----------------------------------------------------------------------
subroutine write_mesh_vtk
implicit none
integer(4) :: i
character(300) :: foutput
foutput = trim(fname)//'.vtk'
open(unit = 21, file = foutput, status = 'replace')
write(21,'(a)') '# vtk DataFile Version 2.0'
write(21,'(a)') 'VTK format for unstructured mesh'
write(21,'(a)') 'ASCII'
write(21,'(a)') 'DATASET POLYDATA'
write(21,1) nbnode
do i = 1, nbnode
write(21,*) coord_nodes(i)%p%x, coord_nodes(i)%p%y, coord_nodes(i)%p%z
end do
write(21,2) nbelm, 5*nbelm
do i = 1, nbelm
write(21,*) 4,id_nodes(i)%pn%id_node(6:9)-1
end do
write(21,3) nbelm
write(21,'(a)') 'SCALARS CELL_IDENT integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) id_nodes(i)%pn%id_node(1)
end do
write(21,'(a)') 'SCALARS NEIGHBOR1 integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
if (associated(cell(i)%p%neighbor1)) then
write(21,*) cell(i)%p%neighbor1%ident
else
write(21,*) 0
endif
end do
write(21,'(a)') 'SCALARS NEIGHBOR2 integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
if (associated(cell(i)%p%neighbor2)) then
write(21,*) cell(i)%p%neighbor2%ident
else
write(21,*) 0
endif
end do
write(21,'(a)') 'SCALARS NEIGHBOR3 integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
if (associated(cell(i)%p%neighbor3)) then
write(21,*) cell(i)%p%neighbor3%ident
else
write(21,*) 0
endif
end do
write(21,'(a)') 'SCALARS NEIGHBOR4 integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
if (associated(cell(i)%p%neighbor4)) then
write(21,*) cell(i)%p%neighbor4%ident
else
write(21,*) 0
endif
end do
close(unit = 21)
1 format('POINTS',i9,' float')
2 format('POLYGONS ',2i9)
3 format('CELL_DATA',i9)
end subroutine
!----------------------------------------------------------------------
subroutine write_mesh_tecplot
implicit none
integer(4) :: i
character(300) :: foutput
foutput = trim(fname)//'.dat'
open(unit = 21, file = foutput, status = 'replace')
!write(21,'(a)') 'VARIABLES=X,Y,CELL_IDENT,NEIGHBOR1,NEIGHBOR2,NEIGHBOR3,NEIGHBOR4' ! coming soon
write(21,'(a)') 'VARIABLES=X,Y'
write(21,'(a)') 'ZONE T="UNSTRUCTURED-COUNTOUR"'
write(21,'(a)') 'ZONETYPE=FEPOLYGON'
write(21,*) 'NODES=',nbnode
write(21,*) 'ELEMENTS=',nbelm
write(21,*) 'FACES=',nbelm*4
write(21,*) 'NumConnectedBoundaryFaces=0'
write(21,*) 'TotalNumBoundaryConnections=0'
do i = 1, nbnode
write(21,*) coord_nodes(i)%p%x
end do
do i = 1, nbnode
write(21,*) coord_nodes(i)%p%y
end do
! Node indexes
do i = 1, nbelm
write(21,*) id_nodes(i)%pn%id_node(6), id_nodes(i)%pn%id_node(7)
write(21,*) id_nodes(i)%pn%id_node(7), id_nodes(i)%pn%id_node(8)
write(21,*) id_nodes(i)%pn%id_node(8), id_nodes(i)%pn%id_node(9)
write(21,*) id_nodes(i)%pn%id_node(9), id_nodes(i)%pn%id_node(6)
enddo
do i = 1, nbelm
write(21,*) i,i,i,i
enddo
do i = 1, nbelm
write(21,*) 0,0,0,0
enddo
close(unit = 21)
end subroutine
!----------------------------------------------------------------------
subroutine write_solution_vtk(iter)
use mod_solver
implicit none
integer, intent(in) :: iter
integer(4) :: i
character(300) :: foutput
character(7) :: citer
write(citer,'(I7.7)') iter
foutput = trim(fname)//'_'//trim(citer)//'.vtk'
open(unit = 21, file = foutput, status = 'replace')
write(21,'(a)') '# vtk DataFile Version 2.0'
write(21,'(a)') 'VTK format for unstructured mesh'
write(21,'(a)') 'ASCII'
write(21,'(a)') 'DATASET POLYDATA'
write(21,1) nbnode
do i = 1, nbnode
write(21,*) coord_nodes(i)%p%x, coord_nodes(i)%p%y, coord_nodes(i)%p%z
end do
write(21,2) nbelm, 5*nbelm
do i = 1, nbelm
write(21,*) 4,id_nodes(i)%pn%id_node(6:9)-1
end do
write(21,3) nbelm
write(21,'(a)') 'SCALARS CELL_IDENT integer 1'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) id_nodes(i)%pn%id_node(1)
end do
write(21,'(a)') 'SCALARS Density float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) rho(i)
enddo
write(21,'(a)') 'SCALARS Temperature float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) t(i)
enddo
write(21,'(a)') 'SCALARS Pressure float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) p(i)
enddo
write(21,'(a)') 'SCALARS Velocity_u float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) ux(i)
enddo
write(21,'(a)') 'SCALARS Velocity_v float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) uy(i)
enddo
write(21,'(a)') 'SCALARS Velocity_magnitude float'
write(21,'(a)') 'LOOKUP_TABLE default '
do i = 1, nbelm
write(21,*) sqrt(ux(i)**2 + uy(i)**2)
enddo
close(unit = 21)
1 format('POINTS',i9,' float')
2 format('POLYGONS ',2i9)
3 format('CELL_DATA',i9)
end subroutine
!----------------------------------------------------------------------
end module