mirror of https://github.com/ecmwf/eccodes.git
67 lines
2.7 KiB
Modula-2
67 lines
2.7 KiB
Modula-2
unsigned[2] Ni : can_be_missing,dump;
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alias numberOfPointsAlongAParallel=Ni;
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alias Nx = Ni;
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unsigned[2] Nj : can_be_missing,dump;
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alias numberOfPointsAlongAMeridian=Nj;
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alias Ny = Nj;
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# Latitudes and Longitudes of the first and the last points
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# Resolution and component flags
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include "grib1/grid_first_last_resandcomp.def";
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unsigned[2] iDirectionIncrement : can_be_missing, edition_specific;
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unsigned[2] jDirectionIncrement : can_be_missing, edition_specific;
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alias Dj = jDirectionIncrement;
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alias Dy = jDirectionIncrement;
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alias Di = iDirectionIncrement;
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alias Dx = iDirectionIncrement;
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include "grib1/scanning_mode.def";
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meta geography.jDirectionIncrementInDegrees latlon_increment(ijDirectionIncrementGiven,jDirectionIncrement,
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jScansPositively,
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latitudeOfFirstGridPointInDegrees,latitudeOfLastGridPointInDegrees,
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numberOfPointsAlongAMeridian,oneConstant,grib1divider,0) : can_be_missing,dump;
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alias DjInDegrees=jDirectionIncrementInDegrees;
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alias DyInDegrees=jDirectionIncrementInDegrees;
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meta geography.iDirectionIncrementInDegrees latlon_increment(ijDirectionIncrementGiven,iDirectionIncrement,
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iScansPositively,
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longitudeOfFirstGridPointInDegrees,longitudeOfLastGridPointInDegrees,
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Ni,oneConstant,grib1divider,1) : can_be_missing,dump;
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alias DiInDegrees=iDirectionIncrementInDegrees;
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alias DxInDegrees=iDirectionIncrementInDegrees;
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meta numberOfDataPoints number_of_points(Ni,Nj,PLPresent,pl) : dump;
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alias numberOfPoints=numberOfDataPoints;
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meta numberOfValues number_of_values(values,bitsPerValue,numberOfDataPoints,
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bitmapPresent,bitmap,numberOfCodedValues) : dump;
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#alias ls.valuesCount=numberOfValues;
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if(missing(Ni)){
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iterator latlon_reduced(numberOfPoints,missingValue,values,
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latitudeFirstInDegrees,longitudeFirstInDegrees,
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latitudeLastInDegrees,longitudeLastInDegrees,
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Nj,DjInDegrees,pl);
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nearest latlon_reduced(values,radius,Nj,pl,longitudeFirstInDegrees,longitudeLastInDegrees);
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} else {
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transient iteratorDisableUnrotate = 0 : hidden; # ECC-808
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iterator latlon(numberOfPoints,missingValue,values,longitudeFirstInDegrees,
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DiInDegrees ,Ni,Nj,iScansNegatively ,
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latitudeFirstInDegrees,DjInDegrees,
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jScansPositively,jPointsAreConsecutive,
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isRotatedGrid, angleOfRotation,
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latitudeOfSouthernPoleInDegrees,longitudeOfSouthernPoleInDegrees);
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nearest regular(values,radius,Ni,Nj);
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}
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meta latLonValues latlonvalues(values);
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alias latitudeLongitudeValues=latLonValues;
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meta latitudes latitudes(values,0);
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meta longitudes longitudes(values,0);
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meta distinctLatitudes latitudes(values,1);
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meta distinctLongitudes longitudes(values,1);
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