[geotk] NetCDF Coverage Reading issue

[Aaron Braeckel]

Hello,

most of the files I am reading through the NetCDF coverage support are 
working fine (thanks, Martin!) but it looks like I have a case where the 
code is expecting a CoordinateAxis1D and is instead finding a 
CoordinateAxis2D.  Here is my code (against SNAPSHOT):

     ImageCoverageReader reader = new ImageCoverageReader();
     reader.setInput( TestUtil.readFile( 
"data/CIP_20100508_v_200000_l_0000000.nc" ) );
     GridCoverage cvg = reader.read( 0, null );

I have placed a copy of this file under 
http://www.rap.ucar.edu/~braeckel/data/CIP_20100508_v_200000_l_0000000.nc.  
Note that this file is not CF-compliant and it is NetCDF 4 (HDF 5) 
format.  I think it is the data model causing problems rather than the 
format, though.  Here is the resulting Exception:

java.lang.ClassCastException: ucar.nc2.dataset.CoordinateAxis2D cannot 
be cast to ucar.nc2.dataset.CoordinateAxis1D
     at 
org.geotoolkit.referencing.adapters.NetcdfCRS.wrap(NetcdfCRS.java:272)
     at 
org.geotoolkit.image.io.plugin.NetcdfMetadata.setCoordinateSystem(NetcdfMetadata.java:223)
     at 
org.geotoolkit.image.io.plugin.NetcdfMetadata.<init>(NetcdfMetadata.java:177)
     at 
org.geotoolkit.image.io.plugin.NetcdfImageReader.createMetadata(NetcdfImageReader.java:771)
     at 
org.geotoolkit.image.io.SpatialImageReader.getSpatialMetadata(SpatialImageReader.java:343)
     at 
org.geotoolkit.image.io.SpatialImageReader.getImageMetadata(SpatialImageReader.java:308)
     at 
org.geotoolkit.image.io.SpatialImageReader.getImageMetadata(SpatialImageReader.java:129)
     at javax.imageio.ImageReader.getMetadata(ImageReader.java:789)
     at javax.imageio.ImageReader.getImageMetadata(ImageReader.java:887)
     at 
org.geotoolkit.coverage.io.ImageCoverageReader.getSpatialMetadata(ImageCoverageReader.java:523)
     at 
org.geotoolkit.coverage.io.ImageCoverageReader.getGridGeometry(ImageCoverageReader.java:574)
     at 
org.geotoolkit.coverage.io.ImageCoverageReader.read(ImageCoverageReader.java:820)

Thanks,
Aaron