[OSM-talk] Prolification of the amenity tag
80n80n at gmail.com
Wed Nov 29 16:25:51 GMT 2006
On 11/29/06, bvh <bvh-osm at irule.be> wrote:
> On Wed, Nov 29, 2006 at 02:14:16PM +0000, 80n wrote:
> > Nick
> > I hope the number of rules files for renderers does quickly
> escalate. There
> > needs to be a very different rendering of maps for golf course, ski
> > theme parks, unversity campuses, motor racing circuits, etc, etc.
> That is totally unrealistic. We barely can render one version of the
> map let alone an escalation of renderers!
The current ratio of maps to renderers is about 0.0000001:3 ;-) We have
about 0.0000001% of the planet mapped. There are three renderers available
on the OSM front page (Mapnik, Osmarender, Mapnik WMS-C), and I am sure
there are others.
What is unrealistic about a ratio of say 1:1000?
> Using mashups is one way of combining the data. But this is really just a
> > hack because there is no easy way of making a fully integrated custom
> > A mashup cannot (AFAIK) seamlessly merge data from different sources
> > together into one unified map. The OSM approach using a custom rules
> > makes this almost trivial to do.
> Why do you think you cannot seamlessly merge data from different sources?
Most mashups of geo data that I have seen comprise a pre-rendered base map
(usually Google maps or similar) with another dataset overlayed on top. I
think this is what most people imagine when talking about mashups.
The opportunity to access the source geodata in OSM enables multiple
datasets to be merged before rendering. Whether the data comes from OSM or
somewhere else is unimportant - the ability to merge it before rendering
*is* important. A very easy way to achieve that is to store both datasets
in OSM, using tag prefixes, if neccessary, to keep them separate and
> talk mailing list
> talk at openstreetmap.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the talk