[Tagging] A first step towards bringing the wiki and tool support closer together

Steve Bennett stevagewp at gmail.com
Wed Dec 9 00:52:30 GMT 2009

On Wed, Dec 9, 2009 at 4:32 AM, Jochen Topf <jochen at remote.org> wrote:

> First comment though: Please, please start making a distinction between the
> rendering software (Mapnik) and the style file is uses and the map it
> creates,
> respectively. This is already problematic. It should not be called
> "Mapnik-support", but something like "Default OSM Map-support". We should
> come up with nice name for the default map.

Sorry, you're absolutely right. The confusion arises from the fact that the
"Default OSM Mapnik" layer on the main openstreetmap.org view is called
"Mapnik". It probably shouldn't be.

> Second comment: As always, its not that easy. You can't just read osm.xml.
> At least you have to take the osm2pgsql config into account. Also you
> probably

Sure, can you give me a few pointers? I haven't got Mapnik or running.

> People can check it, improve it

Well, improve the generation method. Hand tweaking would be the wrong

> and get some experience about its usefulness.
> Just an idea: If you really want to check what the renderer renders and
> what
> not, how about creating a osm test file with all the different tags ins
> there,
> send it through the renderer and check whether the bitmap is empty. If it
> contains something in the right spot, you know the tag is supported. This
> is
> totally renderer and style agnostic reasonably easy to automate.

Yes...but from what I gather, getting Mapnik installed locally is quite
complex. Or maybe I'm confusing it with getting slippymap/tileserver
installed. I'm new to all this.

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