[FWTools] Does gdal_translate support writing kml files from geotifs?

Roger Andre randre at google.com
Thu Feb 8 16:21:38 EST 2007


Hi Simon,

Getting the regionator to work with the FWTools implementation of GDAL
can be problematic.  Some of the Python code it uses has Python 2.4
dependencies, which necessitate a great deal of hacking in both the
regionator and FWTools to overcome.  The easiest way I have found to use
the regionator is on a Debian Linux system, with the python-gdal package
installed.  I have had a great deal of success using it in this fashion,
and it should not conflict with your previous FWTools installation.

It would be helpful to have at least a general sense of what you are
trying to do.  The superoverlay.py tool in the regionator is very useful
for generating large, region-based KML "superoverlays" that can be
loaded in Google Earth.  This allows you to display an orthophoto
mosaic, or large DRG, which would otherwise exceed the client's maximum
overlay size.  

I'd be happy to continue this conversation with you off-line, if you
feel that the topic is inappropriate for this list.

Regards,

Roger
-- 
Roger A. Andre
GIS Specialist
Google
1600 Amphitheater Parkway
Mountain View, CA 94043
randre at google.com



On Thu, 2007-02-08 at 07:15 -0800, Simon Hook wrote:
> Not to worry I will contact the author and if I can get it running let 
> you know. Enjoy the Canadian Wilderness, its beautiful up there.
> 
> S.
> 
> Frank Warmerdam wrote:
> > Simon Hook wrote:
> >> Hi Frank,
> >>
> >> A friend asked me to look at the regionator package which supposedly 
> >> creates kml files from geotifs, the package requires GDAL and was put 
> >> together by Google. Its open source at
> >>
> >> http://code.google.com/p/regionator
> >>
> >> I downloaded it and tried to run the test scripts but found they were 
> >> shell scripts. I converted them to batch files and was then able to 
> >> run most of the tests (not all of them). The superoverlay tests ran 
> >> so I tried to create a kml from the file I sent you before. It ran 
> >> for about 30 mins generated several hundred jpgs and kml files 
> >> including a root.kml but when I opened google earth it went to the 
> >> correct place but the image was garbage.
> >>
> >> Are you familar with the regionator, especially given it requires GDAL?
> >
> > Simon,
> >
> > There are lots of things that use GDAL I don't know anything about.  
> > However,
> > I was told by briefly about this in the past though I had the 
> > impression at
> > the time it wasn't really "ready for prime time" - that is not end-user
> > bullet proof.
> >
> > I'd try it but I don't actually have Google Earth installed here, and
> > such applications have poor performance for me over my high latency
> > satellite link to the Canadian Wilderness.
> >
> > Best regards,
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