[OSM-talk] Mapnik Lowzoom TIles - proof of concept

[Tirkon]

Frederik Ramm <frederik at remote.org> wrote:

>> The first priority for rendering could be the admin level.
>
>Certainly an idea worth pursuing, however some magic would have to be 
>applied to match place tags (usually nodes - they will have a population 
>or capital tag) with admininistrative boundaries (that have an admin 
>level but neither "capital" nor population info).

ÖK! So the idea could be slimmed down: No consideration of
admin_level. Rendering as today decided on the place tag. But if there
is much empty space the next lower value of the place tag will be used
as well. No berücksichtigung

Here is an example of "empty space":
http://www.openstreetmap.org/?lat=53.12&lon=11.7&zoom=8&layers=M

The other features could be added (possibly partly), because
population and capital are now available. In particular preferred
rendering of capital-names and its stars could be added for
comparatively little costs. This alone gives a better orientation
cause these cities are known better in the most cases.


The "magic" in the extended version could be provided by adding the
correspondent place-node with admin_centre-role as a member to the
boundary-relation. But this has to be done worldwide and thus it is a
problem.