[idvusers] follow up to previous mail: Netcdf grids and Contour2DdDisplayable

To: idvusers@xxxxxxxxxxxxxxxx
Subject: [idvusers] follow up to previous mail: Netcdf grids and Contour2DdDisplayable
From: Stuart Maclean <stuart@xxxxxxxxxxxxxxxxxx>
Date: Thu, 3 Apr 2008 15:50:35 -0700

To update my previous mail about using a Contour2DDisplayable objectand a GeoGrid from a nc file, I have discovered something odd. Iprinted out the domain and range values of the FlatField i am usingfor the Displayable. the domain has X and Y values as I expected, butthe range values are off.


Given that I do this:

        GeoGridAdapter gga = new GeoGridAdapter( ggds, gg,
                                                 "surface_temperature" );
        FieldImpl fi = gga.getData();

I expected my flatfield to have values from the surface_temperaturevariable. However I am seeing values from some other variable, andfrom within the middle of the grid of data too.


It's as though the netcdf offset logic is awry.

Or maybe I am using the classes wrong.

Anyway, the Contour2Ddisplayable is handling the map projection fromX, Y in the grid to lat, lon, so it is not that that is the issue, asI previously thought.


Stuart