[postgis-devel] [WKT Raster] Regular blocking in gdal2wktraster.py

[Mateusz Loskot]

> -----Original Message-----
> From: postgis-devel-bounces at postgis.refractions.net [mailto:postgis-
> devel-bounces at postgis.refractions.net] On Behalf Of Pierre Racine
> Sent: Friday, March 27, 2009 3:56 PM
> To: PostGIS Development Discussion
> Subject: RE: [postgis-devel] [WKT Raster] Regular blocking in
> gdal2wktraster.py
> 
> >Pierre, we have re-discussed things with Martin and we've decided to
> >implement -k with tile size specification:
> >
> >gdal2wktraster -k 256 256
> 
> :-) again... What will happen if I do -k 100x100 on a 1020x1020 image?

Simplest is to abort processing if two simple tests give false:

width mod xblocksize == 0

height mod yxblocksize == 0

> There is two options:
> 
> 1) you create some smaller tiles (braking regular blocking). (default)
> 
> 2)  you fill the incomplete tiles with nodatavalue. This could be (yet)
> another option (add "n" after as in "100x100n") or add another "-"
> option. As you like...

For now, I will stick to the tests above
Testing core features have higher priority for me than
making gdal2wktarster more smart and bulletproof.
But again, you are welcome to improve it if you like.

Best regards,
--
Mateusz Loskot
Senior Programmer, Cadcorp
http://www.cadcorp.com