[OSM-dev] Tirex and python rendering backend

[NopMap]

Hi!

My server is using tirex and a fairly standard mapnik rendering backend to
create map tiles. There are also tiles with elevation contour lines which
are pre-rendered offline and uploaded. Not exactly state of the art.

I would like to put tirex in control of rendering those contours also.
Naturally, they will never expire, but this would make nice hill shading and
contours available for all zoom levels, not just those where pre-rendering
is feasible. However, the contour tiles cannot be created by mapnik directly
as they need certain alpha channel techniques that mapnik does not provide.
The rendering in this case is done by a python script with mapnik binding
and PIL postprocessing.

Is it possible to connect tirex to a python rendering backend?
Has anybody experience with this?
How would the skeleton of such a python script need to look like?

bye
                    Nop


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