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! (C) Copyright 2005- 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: how to get lat/lon/values.
!
!
program get_data
use eccodes
implicit none
integer :: ifile
integer :: iret,i
real(kind=8),dimension(:),allocatable :: lats,lons,values
integer,dimension(:),allocatable :: bitmap
integer(4) :: numberOfPoints
logical :: is_missing_value
integer :: count1=0, count2=0, bitmapPresent=0, bmp_len=0
! Message identifier.
integer :: igrib
ifile=5
call codes_open_file(ifile, &
'../../data/reduced_latlon_surface.grib1','R')
! Loop on all the messages in a file.
call codes_grib_new_from_file(ifile,igrib,iret)
do while (iret/=CODES_END_OF_FILE)
count1=count1+1
print *, "===== Message #",count1
call codes_get(igrib,'numberOfPoints',numberOfPoints)
call codes_get(igrib,'bitmapPresent',bitmapPresent)
allocate(lats(numberOfPoints))
allocate(lons(numberOfPoints))
allocate(values(numberOfPoints))
if (bitmapPresent == 1) then
! get the bitmap
call codes_get_size(igrib, 'bitmap', bmp_len)
allocate(bitmap(bmp_len))
call codes_get(igrib,'bitmap', bitmap)
end if
call codes_grib_get_data(igrib,lats,lons,values)
do i=1,numberOfPoints
! Consult bitmap to see if the i'th value is missing
is_missing_value=.false.
if (bitmapPresent == 1 .and. bitmap(i) == 0) then
is_missing_value=.true.
end if
! Only print non-missing values
if (.not. is_missing_value) then
print *, lats(i),lons(i),values(i)
count2=count2+1
end if
enddo
print *, 'count of non-missing values=',count2
if (count2 /= 214661) then
call codes_check(-2, 'incorrect number of missing', '')
end if
deallocate(lats)
deallocate(lons)
deallocate(values)
call codes_release(igrib)
call codes_grib_new_from_file(ifile,igrib, iret)
end do
call codes_close_file(ifile)
end program
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