[gdal-dev] Re: Problems with large raster sizes (WMS/TMS)

Seth Price seth at pricepages.org
Fri Nov 13 15:21:44 EST 2009

Jumping in here, and I may be misunderstanding, but I don't see how we
would have greater than 2 gigapixel images in the foreseeable future.
Doing the math: if we represent the entire earth as a single image, each
pixel would be 2 cm at the equator, and the whole image would be 6291456
TB in size (24-bit image).

I'm not even sure if it's physically possible to image the globe at better
than 2 cm.

On Fri, November 13, 2009 11:35 am, Tamas Szekeres wrote:
> 2009/11/13 Frank Warmerdam <warmerdam at pobox.com>:
>> I would prefer to limit ourselves to 2 gigapixels by 2 gigapixels images
>> for the time being.  I just can't yet see that larger images are of
>> sufficient interest to justify the complexity involved in properly
>> supporting larger images throughout GDAL.
>> If we were to do so, I'd want it handled via an RFC.
> This is true probably for most of the existing drivers. However for
> the server based raster data sources can have no such limit in the
> size when the supported level of the detail is increasing, may be
> earlier than we can expect.
> Best regards,
> Tamas
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