[OSM-talk] New Zealand coastline and mapnik

[Jon Burgess]

On 24/12/2007, Andy Allan <gravitystorm at gmail.com> wrote:
> On Dec 24, 2007 2:43 PM, Jon Burgess <jburgess777 at googlemail.com> wrote:
> > On 24/12/2007, Ben Laenen <benlaenen at gmail.com> wrote:
> > > On Monday 24 December 2007, Rob Reid wrote:
> > > > It has also been tidied up in places where high res Yahoo imagery is
> > > > available.
> > > > What needs to happen now so that it appears correctly for Mapnik zoom
> > > > levels 10 and above?
> > >
> > > A question which I've been asking myself, since things like this aren't
> > > exactly pretty results:
> > > http://www.openstreetmap.org/?lat=51.2573&lon=4.3559&zoom=14&layers=B0F
> > > but I have no idea how to update the Mapnik data...
> >
> > I can update the renderer to use a different shapefile fairly easily
> > but the issue right now is that the coastline data is incomplete for
> > the rest of the world (with most of the US underwater). To use the
> > current data would requires me to do some selective merging of the
> > existing vmap0 files with Kleptog's shapefiles (If I can get them or
> > the scripts from him). It will probably take a few hours to do the
> > work and verify that it renders OK.
> >
> > It would be a lot easier if we could use the new data for the whole
> > world and get rid of the vmap0 data but are still missing large parts
> > of the North America and Eastern Europe.
>
> From what I understand of the mapnik files, we're using a vmap0-based
> shapefile for z0-z9, and a separate shapefile that Artem created by
> hand for z10+ that covers some (most) of the UK, with coastline
> strokes elsewhere. Would it not be possible to use Martijn's shapefile
> for the high zoom stuff, and keep the low zoom on vmap0 for now?
>
> Cheers,
> Andy

We can for some areas of the globe but areas like the USA will need to
be excluded otherwise nearly all of it will appear underwater.

-- 
    Jon