[Gdal-dev] create 256x256 tiles for google maps

[Norman Vine]

Stephen Woodbridge writes:
> > 
> Great script, thank you for sharing it.
> 
> You mentioned working with projected coordinates below. I 
> would like to do something along the lines gdalsplit, but be 
> able to define the height and width on projected coordinates, 
> like 0.0625 degrees and have it split the src image into 
> tiles that size but the edges aligned to hit 1.0 degree 
> intervals. So like 42.0, 42.0625, 42.125, ...
> 
> Is there an easy way to do this in a script?
> Would it be easy to modify gdalsplit to do something like this?
> What if the src image is in some UTM projection and you want 
> the tiles in geographic projection?

OSSIM has a couple of command line utilities that do this and more

igen and orthoigen

Docs start at about page 85 of 
http://ossim.telascience.org/ossimdata/Documentation/ossim_users_guide.pdf

Ossim has a GDAL plugin so most GDAL supported formats work

Norman