Doh! I found the problem and it was me. I defined my new set as a
Gridded2DSet with manifold dimension = ONE instead of TWO. As a result,
VisAD did exactly as I told it and plotted the data along a line.
Everything works now!
Hopefully I'm not the only one that learned something from this.
Thanks,
Doug
Doug Lindholm wrote:
>
> Hi,
>
> I've attempted what I thought was the quick and dirty solution to my
> Lambert map projection problem given my limited understanding of
> visad.CoordinateSystem. My attempts to use
> visad.data.hdfeos.LambertConformalConic in a way similar to
> PolarCoordinateSystem in Test11 was not fruitful so I took the following
> approach:
>
> construct my terrain field: (lon,lat) -> alt
>
> construct a visad.data.hdfeos.LambertConformalConic
>
> extract the samples of my domain set and run them through
> LambertConformalConic.fromReference() thus creating a new domain set of
> (x,y).
>
> construct a field on this new set assigning the original alt values.
>
> display mapping x and y to the Axes.
>
> The results are promising - it looks like a Lambert projection, but the
> rendering is flakey. I've linked a "before" and "after" image.
>
> ftp://ftp.rap.ucar.edu/incoming/lam1.gif
> ftp://ftp.rap.ucar.edu/incoming/lam2.gif
>
> Is there something fundamentally wrong with what I'm trying to do or is
> there a bug in the transform or the rendering?
>
> I'll throw together some sample code if it helps.
>
> Thanks,
> Doug
>
> --
> *----------------------------------------------------------------------*
> | Doug Lindholm, Software Engineer | E-mail: lind@xxxxxxxx |
> | Research Applications Program | Phone: 303-497-8374 |
> | National Center for Atmospheric Research | |
> | P.O. Box 3000 | There's no place |
> | Boulder, Colorado 80307-3000 | like $HOME |
> *----------------------------------------------------------------------*
--
*----------------------------------------------------------------------*
| Doug Lindholm, Software Engineer | E-mail: lind@xxxxxxxx |
| Research Applications Program | Phone: 303-497-8374 |
| National Center for Atmospheric Research | |
| P.O. Box 3000 | There's no place |
| Boulder, Colorado 80307-3000 | like $HOME |
*----------------------------------------------------------------------*
