mirror of https://github.com/ecmwf/eccodes.git
42 lines
1.7 KiB
Modula-2
42 lines
1.7 KiB
Modula-2
# Copyright 2005-2017 ECMWF.
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#
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# This software is licensed under the terms of the Apache Licence Version 2.0
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# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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#
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# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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#
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# Resolution and component flags
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flags[1] resolutionAndComponentFlags 'grib1/7.table' : edition_specific,no_copy ;
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# Note our flagbit numbers run from 7 to 0, while WMO convention uses 1 to 8
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# (most significant to least significant)
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flagbit ijDirectionIncrementGiven(resolutionAndComponentFlags,7) = 1 ;
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# For grib 1 to 2
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alias iDirectionIncrementGiven = ijDirectionIncrementGiven;
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alias jDirectionIncrementGiven = ijDirectionIncrementGiven;
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alias DiGiven = ijDirectionIncrementGiven;
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alias DjGiven = ijDirectionIncrementGiven;
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flagbit earthIsOblate(resolutionAndComponentFlags,6) : dump;
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if (earthIsOblate) {
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# Earth assumed oblate spheroidal with size as determined by IAU in 1965
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transient earthMajorAxis = 6378160.0;
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transient earthMinorAxis = 6356775.0;
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alias earthMajorAxisInMetres=earthMajorAxis;
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alias earthMinorAxisInMetres=earthMinorAxis;
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}
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flagbit resolutionAndComponentFlags3(resolutionAndComponentFlags,5) = 0: read_only;
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flagbit resolutionAndComponentFlags4(resolutionAndComponentFlags,4) = 0: read_only;
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flagbit uvRelativeToGrid(resolutionAndComponentFlags,3) : dump;
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flagbit resolutionAndComponentFlags6(resolutionAndComponentFlags,2) = 0: read_only;
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flagbit resolutionAndComponentFlags7(resolutionAndComponentFlags,1) = 0: read_only;
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flagbit resolutionAndComponentFlags8(resolutionAndComponentFlags,0) = 0: read_only;
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