program main

!*****************************************************************************80
!
!! medit_mesh_io_test() tests medit_mesh_io().
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    22 October 2010
!
!  Author:
!
!    John Burkardt
!
!  Reference:
!
!    Pascal Frey,
!    MEDIT: An interactive mesh visualization software,
!    Technical Report RT-0253,
!    Institut National de Recherche en Informatique et en Automatique,
!    03 December 2001.
!
  implicit none

  character ( len = 255 ) filename

  call timestamp ( )
  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'medit_mesh_io_test():'
  write ( *, '(a)' ) '  FORTRAN90 version'
  write ( *, '(a)' ) '  Test medit_mesh_io().'
!
!  Create the file hexahexa_2x2x2.mesh
!
  call test01 ( )
!
!  Read and print the file hexahexa_2x2x2.mesh.
!
  filename = 'hexahexa_2x2x2.mesh'
  call test03 ( filename )
!
!  Create the file cyl248.mesh
!
  call test02 ( )
!
!  Read and print the sizes of file cyl248.mesh.
!
  filename = 'cyl248.mesh'
  call test03 ( filename )
!
!  Read and print the data in file cyl248.mesh.
!
  filename = 'cyl248.mesh'
  call test04 ( filename )
!
!  Terminate.
!
  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'medit_mesh_io_test():'
  write ( *, '(a)' ) '  Normal end of execution.'
  write ( *, '(a)' ) ' '
  call timestamp ( )

  stop 0
end
subroutine test01 ( )

!*****************************************************************************80
!
!! TEST01 creates a MESH dataset and writes it to a file.
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    23 October 2010
!
!  Author:
!
!    John Burkardt
!
  implicit none

  integer, parameter :: rk = kind ( 1.0D+00 )

  integer dim
  integer, allocatable :: edge_label(:)
  integer, allocatable :: edge_vertex(:,:)
  integer edges
  character ( len = 255 ) filename
  integer, allocatable :: hexahedron_label(:)
  integer, allocatable :: hexahedron_vertex(:,:)
  integer hexahedrons
  integer, allocatable :: quadrilateral_label(:)
  integer, allocatable :: quadrilateral_vertex(:,:)
  integer quadrilaterals
  integer, allocatable :: tetrahedron_label(:)
  integer, allocatable :: tetrahedron_vertex(:,:)
  integer tetrahedrons
  integer, allocatable :: triangle_label(:)
  integer, allocatable :: triangle_vertex(:,:)
  integer triangles
  real ( kind = rk ), allocatable :: vertex_coordinate(:,:)
  integer, allocatable :: vertex_label(:)
  integer vertices

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'TEST01:'
  write ( *, '(a)' ) '  Create a hexahedral mesh and write it to a file.'
!
!  Get sizes.
!
  call hexahexa_2x2x2_size ( dim, vertices, edges, triangles, quadrilaterals, &
    tetrahedrons, hexahedrons )
!
!  Allocate memory.
!
  allocate ( edge_label(edges) )
  allocate ( edge_vertex(2,edges) )
  allocate ( hexahedron_label(hexahedrons) )
  allocate ( hexahedron_vertex(8,hexahedrons) )
  allocate ( quadrilateral_label(quadrilaterals) )
  allocate ( quadrilateral_vertex(4,quadrilaterals) )
  allocate ( tetrahedron_label(tetrahedrons) )
  allocate ( tetrahedron_vertex(4,tetrahedrons) )
  allocate ( triangle_label(triangles) )
  allocate ( triangle_vertex(3,triangles) )
  allocate ( vertex_coordinate(dim,vertices) )
  allocate ( vertex_label(vertices) )
!
!  Get the data.
!
  call hexahexa_2x2x2_data ( dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons, vertex_coordinate, vertex_label, &
    edge_vertex, edge_label, triangle_vertex, triangle_label, &
    quadrilateral_vertex, quadrilateral_label, tetrahedron_vertex, &
    tetrahedron_label, hexahedron_vertex, hexahedron_label )
!
!  Write the data.
!
  filename = 'hexahexa_2x2x2.mesh';

  call mesh_write ( filename, dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons, vertex_coordinate, &
    vertex_label, edge_vertex, edge_label, triangle_vertex, triangle_label, &
    quadrilateral_vertex, quadrilateral_label, tetrahedron_vertex, &
    tetrahedron_label, hexahedron_vertex, hexahedron_label )

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) '  Created the file "' // trim ( filename ) // '".'
!
!  Deallocate memory.
!
  deallocate ( edge_label )
  deallocate ( edge_vertex )
  deallocate ( hexahedron_label )
  deallocate ( hexahedron_vertex )
  deallocate ( quadrilateral_label )
  deallocate ( quadrilateral_vertex )
  deallocate ( tetrahedron_label )
  deallocate ( tetrahedron_vertex )
  deallocate ( triangle_label )
  deallocate ( triangle_vertex )
  deallocate ( vertex_coordinate )
  deallocate ( vertex_label )

  return
end
subroutine test02 ( )

!*****************************************************************************80
!
!! TEST02 creates a MESH dataset and writes it to a file.
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    23 October 2010
!
!  Author:
!
!    John Burkardt
!
  implicit none

  integer, parameter :: rk = kind ( 1.0D+00 )

  integer dim
  integer, allocatable :: edge_label(:)
  integer, allocatable :: edge_vertex(:,:)
  integer edges
  character ( len = 255 ) filename
  integer, allocatable :: hexahedron_label(:)
  integer, allocatable :: hexahedron_vertex(:,:)
  integer hexahedrons
  integer, allocatable :: quadrilateral_label(:)
  integer, allocatable :: quadrilateral_vertex(:,:)
  integer quadrilaterals
  integer, allocatable :: tetrahedron_label(:)
  integer, allocatable :: tetrahedron_vertex(:,:)
  integer tetrahedrons
  integer, allocatable :: triangle_label(:)
  integer, allocatable :: triangle_vertex(:,:)
  integer triangles
  real ( kind = rk ), allocatable :: vertex_coordinate(:,:)
  integer, allocatable :: vertex_label(:)
  integer vertices

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'TEST02:'
  write ( *, '(a)' ) '  Create a tetrahedral mesh and write it to a file.'
!
!  Get sizes.
!
  call cyl248_size ( dim, vertices, edges, triangles, quadrilaterals, &
    tetrahedrons, hexahedrons )
!
!  Allocate memory.
!
  allocate ( edge_label(edges) )
  allocate ( edge_vertex(2,edges) )
  allocate ( hexahedron_label(hexahedrons) )
  allocate ( hexahedron_vertex(8,hexahedrons) )
  allocate ( quadrilateral_label(quadrilaterals) )
  allocate ( quadrilateral_vertex(4,quadrilaterals) )
  allocate ( tetrahedron_label(tetrahedrons) )
  allocate ( tetrahedron_vertex(4,tetrahedrons) )
  allocate ( triangle_label(triangles) )
  allocate ( triangle_vertex(3,triangles) )
  allocate ( vertex_coordinate(dim,vertices) )
  allocate ( vertex_label(vertices) )
!
!  Get the data.
!
  call cyl248_data ( dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons, vertex_coordinate, vertex_label, &
    edge_vertex, edge_label, triangle_vertex, triangle_label, &
    quadrilateral_vertex, quadrilateral_label, tetrahedron_vertex, &
    tetrahedron_label, hexahedron_vertex, hexahedron_label )
!
!  Write the data.
!
  filename = 'cyl248.mesh';

  call mesh_write ( filename, dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons, vertex_coordinate, &
    vertex_label, edge_vertex, edge_label, triangle_vertex, triangle_label, &
    quadrilateral_vertex, quadrilateral_label, tetrahedron_vertex, &
    tetrahedron_label, hexahedron_vertex, hexahedron_label )

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) '  Created the file "' // trim ( filename ) // '".'
!
!  Deallocate memory.
!
  deallocate ( edge_label )
  deallocate ( edge_vertex )
  deallocate ( hexahedron_label )
  deallocate ( hexahedron_vertex )
  deallocate ( quadrilateral_label )
  deallocate ( quadrilateral_vertex )
  deallocate ( tetrahedron_label )
  deallocate ( tetrahedron_vertex )
  deallocate ( triangle_label )
  deallocate ( triangle_vertex )
  deallocate ( vertex_coordinate )
  deallocate ( vertex_label )

  return
end
subroutine test03 ( filename )

!*****************************************************************************80
!
!! MEDIT_IO_TEST03 reads and prints the sizes in a MESH dataset.
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    21 October 2010
!
!  Author:
!
!    John Burkardt
!
  implicit none

  integer dim
  integer edges
  character ( len = * ) filename
  integer hexahedrons
  integer quadrilaterals
  integer tetrahedrons
  integer triangles
  integer vertices

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'MEDIT_IO_TEST03'
  write ( *, '(a)' ) '  Read a mesh file and print its sizes.'
!
!  Read sizes.
!
  call mesh_size_read ( filename, dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons )
!
!  Print sizes.
!
  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) '  Header information for "' // trim ( filename ) // '".'

  call mesh_size_print ( dim, vertices, edges, triangles, quadrilaterals, &
    tetrahedrons, hexahedrons )

  return
end
subroutine test04 ( filename )

!*****************************************************************************80
!
!! MEDIT_IO_TEST04 reads a MESH dataset and prints its data.
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    24 October 2010
!
!  Author:
!
!    John Burkardt
!
  implicit none

  integer, parameter :: rk = kind ( 1.0D+00 )

  integer dim
  integer, allocatable :: edge_label(:)
  integer, allocatable :: edge_vertex(:,:)
  integer edges
  character ( len = * ) filename
  integer, allocatable :: hexahedron_label(:)
  integer, allocatable :: hexahedron_vertex(:,:)
  integer hexahedrons
  integer, allocatable :: quadrilateral_label(:)
  integer, allocatable :: quadrilateral_vertex(:,:)
  integer quadrilaterals
  integer, allocatable :: tetrahedron_label(:)
  integer, allocatable :: tetrahedron_vertex(:,:)
  integer tetrahedrons
  integer, allocatable :: triangle_label(:)
  integer, allocatable :: triangle_vertex(:,:)
  integer triangles
  real ( kind = rk ), allocatable :: vertex_coordinate(:,:)
  integer, allocatable :: vertex_label(:)
  integer vertices

  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) 'MEDIT_IO_TEST04'
  write ( *, '(a)' ) '  Read a mesh file and print its data.'
!
!  Read sizes.
!
  call mesh_size_read ( filename, dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons )
!
!  Allocate memory.
!
  allocate ( edge_label(edges) )
  allocate ( edge_vertex(2,edges) )
  allocate ( hexahedron_label(hexahedrons) )
  allocate ( hexahedron_vertex(8,hexahedrons) )
  allocate ( quadrilateral_label(quadrilaterals) )
  allocate ( quadrilateral_vertex(4,quadrilaterals) )
  allocate ( tetrahedron_label(tetrahedrons) )
  allocate ( tetrahedron_vertex(4,tetrahedrons) )
  allocate ( triangle_label(triangles) )
  allocate ( triangle_vertex(3,triangles) )
  allocate ( vertex_coordinate(dim,vertices) )
  allocate ( vertex_label(vertices) )
!
!  Read the data.
!
  call mesh_data_read ( filename, dim, vertices, edges, triangles, &
    quadrilaterals, tetrahedrons, hexahedrons, vertex_coordinate, &
    vertex_label, edge_vertex, edge_label, triangle_vertex, triangle_label, &
    quadrilateral_vertex, quadrilateral_label, tetrahedron_vertex, &
    tetrahedron_label, hexahedron_vertex, hexahedron_label )
!
!  Print the data.
!
  write ( *, '(a)' ) ' '
  write ( *, '(a)' ) '  Data for file "' // trim ( filename ) // '".'

  call mesh_data_print ( dim, vertices, edges, triangles, quadrilaterals, &
    tetrahedrons, hexahedrons, vertex_coordinate, vertex_label,  edge_vertex, &
    edge_label, triangle_vertex, triangle_label, quadrilateral_vertex, &
    quadrilateral_label, tetrahedron_vertex, tetrahedron_label, &
    hexahedron_vertex, hexahedron_label )
!
!  Deallocate memory.
!
  deallocate ( edge_label )
  deallocate ( edge_vertex )
  deallocate ( hexahedron_label )
  deallocate ( hexahedron_vertex )
  deallocate ( quadrilateral_label )
  deallocate ( quadrilateral_vertex )
  deallocate ( tetrahedron_label )
  deallocate ( tetrahedron_vertex )
  deallocate ( triangle_label )
  deallocate ( triangle_vertex )
  deallocate ( vertex_coordinate )
  deallocate ( vertex_label )

  return
end
subroutine timestamp ( )

!*****************************************************************************80
!
!! timestamp() prints the current YMDHMS date as a time stamp.
!
!  Example:
!
!    31 May 2001   9:45:54.872 AM
!
!  Licensing:
!
!    This code is distributed under the MIT license.
!
!  Modified:
!
!    06 August 2005
!
!  Author:
!
!    John Burkardt
!
  implicit none

  character ( len = 8 ) ampm
  integer d
  integer h
  integer m
  integer mm
  character ( len = 9 ), parameter, dimension(12) :: month = (/ &
    'January  ', 'February ', 'March    ', 'April    ', &
    'May      ', 'June     ', 'July     ', 'August   ', &
    'September', 'October  ', 'November ', 'December ' /)
  integer n
  integer s
  integer values(8)
  integer y

  call date_and_time ( values = values )

  y = values(1)
  m = values(2)
  d = values(3)
  h = values(5)
  n = values(6)
  s = values(7)
  mm = values(8)

  if ( h < 12 ) then
    ampm = 'AM'
  else if ( h == 12 ) then
    if ( n == 0 .and. s == 0 ) then
      ampm = 'Noon'
    else
      ampm = 'PM'
    end if
  else
    h = h - 12
    if ( h < 12 ) then
      ampm = 'PM'
    else if ( h == 12 ) then
      if ( n == 0 .and. s == 0 ) then
        ampm = 'Midnight'
      else
        ampm = 'AM'
      end if
    end if
  end if

  write ( *, '(i2,1x,a,1x,i4,2x,i2,a1,i2.2,a1,i2.2,a1,i3.3,1x,a)' ) &
    d, trim ( month(m) ), y, h, ':', n, ':', s, '.', mm, trim ( ampm )

  return
end