[OSM-talk] loading geotiff to osm editors

Andy Allan gravitystorm at gmail.com
Tue Oct 20 18:34:26 BST 2009


On Tue, Oct 20, 2009 at 6:27 PM, Dane Springmeyer <blake at hailmail.net> wrote:

> Nice Andy.
>
> If I can help let me know as well. In Mapnik trunk I've been working on
> adding support for GDAL overviews, so using gdaladdo on that large Geotiff
> and then reading it with the 'gdal' datasource could be really useful if the
> geotiff is > 1GB. Also, reprojecting the geotiff into EPSG:900913 will be
> required, before rendering with Mapnik.

Gah, forgot to mention that! gdalwarp is the tool for this. I spent a
day finding this out the hard way the first time I worked with mapnik
and rasters.

Cheers,
Andy




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