eccodes/examples/F90/grib_print_data.f90

61 lines
1.6 KiB
Fortran

! Copyright 2005-2018 ECMWF.
!
! This software is licensed under the terms of the Apache Licence Version 2.0
! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
!
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
!
!
! Description: prints all the data contained in a GRIB file
!
!
!
program print_data
use eccodes
implicit none
integer :: ifile
integer :: iret
integer :: igrib
integer :: i
real(kind=8), dimension(:), allocatable :: values
integer(kind=4) :: numPoints
real(kind=8) :: average
real(kind=8) :: the_max
real(kind=8) :: the_min
call codes_open_file(ifile, &
'../../data/constant_field.grib1','r')
! A new GRIB message is loaded from file
! igrib is the grib id to be used in subsequent calls
call codes_grib_new_from_file(ifile,igrib)
! Get the size of the values array
call codes_get_size(igrib,'values',numPoints)
! Get data values
print*, 'number of points ', numPoints
allocate(values(numPoints), stat=iret)
call codes_get(igrib,'values',values)
do i=1,numPoints
write(*,*)' ',i,values(i)
enddo
write(*,*)numPoints,' values found '
call codes_get(igrib,'max',the_max)
write(*,*) 'max=',the_max
call codes_get(igrib,'min',the_min)
write(*,*) 'min=',the_min
call codes_get(igrib,'average',average)
write(*,*) 'average=',average
call codes_release(igrib)
call codes_close_file(ifile)
deallocate(values)
end program print_data