Re: [udig-devel] rendering of geotiff

[Jody Garnett <jgarnett@xxxxxxxxxxxxxxx>]

Martin Schouwenburg wrote:

> We where experimenting a bit with the current Udig build in rendering 
> data. We encountered a problem with (all)Geotiff files, which loaded 
> correctly but did not show an image in the map view. It was loaded 
> correctly as coordinate info was available. As we couldnt find a 
> reference to these kind of problems in Jirra we wondered if this was a 
> problem in our build (which is drawn form the repository) or a known issue.

Hi! We disabled GeoTiff support for the udig 1.0.0 release (based on 
just the kind of experience you have had).  The geotools library we are 
using does not include a very good GeoTiff implementation (when we did 
get it to work you will find it was very slow).

There are two bright sides to this story:
- we are talking with OSSIM
- the geotools "GridCoverage" developers are actually focused on 
implementing a Web Coverage Service for GeoServer. As such they are 
running into the same problems and are making a lot of progress on 
performance (as they learn to hack Java Advanced Imaging at a very low 
level). I have CCed one of the developers on this project in the hopes 
he can provide an update of GeoTIFF support.

I hope our reasoning for not supporting GeoTIFF (until it is good) makes 
sense. We are an open project, so if you did have anyone with GeoTIFF 
and Java hacking ability we would welcome assistance in this matter.

Cheers,
Jody

PS. You are not alone - at the OSG'05 conference GeoTIFF was the most 
requested feature