2010/3/21 Robert Coup <robert.c...@onetrackmind.co.nz>:
> http://www.mail-archive.com/mapnik-devel@lists.berlios.de/msg00140.html
>
> it has/had some cool features which could be worth porting to a
> Cairo-based PDF renderer.
>  * paper sizes/scale calculations
>  * grids/graticules
>  * overlay images, including other PDFs
>  * scale bars
>  * borders around the map, with coordinates
>  * outputting map layers as true PDF layers. This allows turning on &
> off individual layers in a PDF viewer.

Good suggestions. I'm adding some more, even if these go way beyond
what could be expected of a single GSoC project - but it would be cool
to have them all :)

* ability to merge multiple layers (hillshading, contour lines,
highlighting of routes or POIs, ...)
* Copyright/Attribution line (e.g. CC requires the full URL to the
license on printed maps)
* "North" arrow (important with a rotated map, see
http://www.ancalime.de/rotated.html)
* Legend tailored to what is actually seen on the printed map (vs.
what is in the style file for this zoomlevel)
* Gazetteer (take a look at http://maposmatic.org), maybe including a
list of interesting features (hotels, public transport stations, ...)

Cheers
  Colin
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