[Maps-l] rendering own style

[Stephan Knauss]

Peter Körner wrote:
> I don't think it's necessary to use a tileserver for this style. You 
> could use the minutely updated postgis database to serve an openlayers 
> vector layer. 
Hm, it does not sound like a good idea to transfer 15.000 or more 
elements to be processed with openlayers. I saw this approach before, it 
required each user to download 1.5MB of POI-data.
A lot more compared to the few kb of the bitmap layer that can also be 
cached.

As in low zoom levels the POI symbols do overlap (which is desired), is 
there a possibility to reduce the amount of POIs already on the server? 
That would save the transfer to the client.

How would I cluster the data using postgis? A simple LIMIT won't work as 
it does not take the position of the elements into account.

>> Or is it neccessary that an admin manually edits renderd.conf?
> It is. And it is also necessary that this list decides if a style is 
> beeing accepted or not. This sounds more bureaucratic then it is, it 
> just means that I think that your style could be rendered far more 
> easily with openlayers.

Is there a specific reason why it's so difficult to get a custom 
rendering besides the scripts needed not existing?

CPU/storage space can not be the problem, as a style rarely used is not 
taking much resources. A style very popular is likely to be added anyway.

Stephan