# 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.
#

#  La1 - latitude of first grid point
signed[3] latitudeOfFirstGridPoint :  edition_specific;
meta geography.latitudeOfFirstGridPointInDegrees scale(latitudeOfFirstGridPoint,oneConstant,grib1divider,truncateDegrees) :dump;
alias La1 = latitudeOfFirstGridPoint;

#  Lo1 - longitude of first grid point
signed[3] longitudeOfFirstGridPoint  : edition_specific;
meta geography.longitudeOfFirstGridPointInDegrees scale(longitudeOfFirstGridPoint,oneConstant,grib1divider,truncateDegrees) : dump;
alias Lo1 = longitudeOfFirstGridPoint;

include "grib1/resolution_flags.def";

#  La2 - latitude of last grid point
signed[3] latitudeOfLastGridPoint :  edition_specific;
meta geography.latitudeOfLastGridPointInDegrees scale(latitudeOfLastGridPoint,oneConstant,grib1divider,truncateDegrees) : dump;
alias La2 = latitudeOfLastGridPoint;

#  Lo2 - longitude of last grid point
signed[3] longitudeOfLastGridPoint :  edition_specific;
meta geography.longitudeOfLastGridPointInDegrees scale(longitudeOfLastGridPoint,oneConstant,grib1divider,truncateDegrees) : dump;
alias Lo2 = longitudeOfLastGridPoint;

# for change_scanning_direction
alias yFirst=latitudeOfFirstGridPointInDegrees;
alias yLast=latitudeOfLastGridPointInDegrees;
alias xFirst=longitudeOfFirstGridPointInDegrees;
alias xLast=longitudeOfLastGridPointInDegrees;

alias latitudeFirstInDegrees  = latitudeOfFirstGridPointInDegrees;
alias longitudeFirstInDegrees = longitudeOfFirstGridPointInDegrees;
alias latitudeLastInDegrees   = latitudeOfLastGridPointInDegrees;
alias longitudeLastInDegrees  = longitudeOfLastGridPointInDegrees;