[Benchmarking] Vector tests: first oddity

Frank Warmerdam warmerdam at pobox.com
Fri Aug 20 08:48:11 EDT 2010

Andrea Aime wrote:
> Anyways, I think it would be nice to have comparable results.
> How do we get that? I'd say, by taking the 4326 bounds and
> reproject them to 3857, and then adjusting the image form
> factor to follow (e.g., keep the width, adjust the height,
> or be even smarter and make it so the number of pixels
> in the two images is roughly the same so that png compression
> and memory usage are comparable as well).


I agree, taking care so that the requests in 3857 are
essentially the same number of pixels and region on the
ground even if the shape of the request is different.

> I think I can do the above writing a GeoTools based script.
> But if you want it lighter and written in python, I'm not
> the right person to do it.

Doing it with GeoTools in Java is fine with me.

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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