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[netcdf-java] GridCoordSys introduces rounding error when converting from km to m and integer axis-type

The class ucar.nc2.dt.grid.GridCoordSys converts internally all projection-axes to km. But it seems like it does not convert the datatype to a float or double datatype and introduces therefore large rounding errors. 

I have given my axes as m (in integer):
-3716017, -3712004, -3707991
The isRegular function of Coordinate1D sees (with a debugger attched) the values: 
-3716, -3712, -3707
and as such fails with my approx. 4km grid-distance.



Best regards,

Heiko


--
Dr. Heiko Klein                              Tel. + 47 22 96 32 58
Development Section / IT Department          Fax. + 47 22 69 63 55
Norwegian Meteorological Institute           http://www.met.no
P.O. Box 43 Blindern  0313 Oslo NORWAY
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