Thanks Jerry and Andy,
Plenty to keep me going there :)
I'm getting on fairly well with transforming Ordnance Survey open styles
from Geoserver SLD (xml) to Mapnik XML as they are fairly similar. The OSM
styles are helping me see how things could be styled.
Potentially I will generate some CartoCSS instead to give me something more
editable in the future.
Regards,
Jez
On Tue, 23 Jan 2018 18:44 Andy Townsend, <ajt1...@gmail.com> wrote:
> On 23/01/2018 13:21, Jez Nicholson wrote:
> >
> > I am currently working with mapnik to render Ordnance Survey VectorMap
> > District.
> >
> > Which is the 'best' stylesheet format to use? Mapnik XML or CartoCSS
> > or a.n.other?
>
> Of the two I'd definitely suggest CartoCSS rather than raw Mapnik XML -
> I've tried to edit a map style in raw Mapnik XML and really wouldn't
> recommend it. Obviously other tile technologies are available - this is
> all assuming that you want "normal" raster tiles (as you'd get at
> osm.org) and don't want to be locked in to a third party provider.
>
> Given that you're essentially creating a map style from scratch I
> wouldn't start with anything so complicated as OSM Carto - a quick and
> dirty search of github* via
>
> https://github.com/search?utf8=%E2%9C%93&q=project+extension%3Amml&type=Code&ref=searchresults
> will find lots, and I bet you'll find something "just for landuse" to
> start with. "Mapnik" is just the software that does the rendering based
> on the XML, so it makes sense that its website doesn't mention the
> "Carto" preprocessor.
>
> I'd suggest having a look at
> https://ircama.github.io/osm-carto-tutorials/ - there's lots of stuff
> there that you'll find useful.
>
> If you can persuade it to run on whatever system you're running, you can
> use something like TileMill or Kosmtik to visualise changes "as you go",
> although to be honest I tend not to bother - I just use one of a couple
> of shell scripts to update the rendering of which
>
> https://github.com/SomeoneElseOSM/SomeoneElse-style/blob/master/update_carto.sh
> is for "I've changed the map style and don't need to reload the data".
> It's designed around the map style that I use but you could easily
> modify it to get a map style from somewhere else.
>
> Other stuff that might be useful includes
> https://switch2osm.org/manually-building-a-tile-server-16-04-2-lts/ ,
> https://github.com/gravitystorm/openstreetmap-carto/blob/master/DOCKER.md
> (which is for OSM Carto but should be adaptable) and
> https://www.openstreetmap.org/user/SomeoneElse/diary/42617 if you're on
> Windows 10.
>
> Best Regards,
>
> Andy
>
>
> * thanks to Zverik for that
>
>
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