private int _discipline; //学科
public GribIndicatorSection(FileStream fs)
{
long mark = fs.Position;
//if Grib edition 1, get bytes for the gribLength
fs.Seek(3, SeekOrigin.Current);
// edition of GRIB specification
_gribEdition = fs.ReadByte();
if (_gribEdition == 1)
{
// length of GRIB record
// Reset to beginning, then read 3 bytes
fs.Position = mark;
_gribLength = (long)GribNumberHelper.Uint3(fs);
// Skip next byte, edition already read
fs.ReadByte();
_sectionLength = 8;
}
else if (_gribEdition == 2)
{
fs.Position = mark + 2;
// length of GRIB record
_discipline = fs.ReadByte();
fs.ReadByte();
_gribLength = GribNumberHelper.Int8(fs);
_sectionLength = 16;
}
else
{
throw new NotSupportedException("GRIB edition " + _gribEdition + " is not yet supported");
}
}
public GRIB2IndicatorSection(FileStream fs)
{
//if Grib edition 1, get bytes for the gribLength
int[] data = new int[3];
for (int i = 0; i < 3; i++)
{
data[i] = fs.ReadByte();
}
_gribEdition = fs.ReadByte();
if (_gribEdition == 2)
{
_discipline = data[2];
_gribLength = GribNumberHelper.Int8(fs);
_sectionLength = 16;
}
}
