Am 16.08.2009 um 23:14 schrieb Nop:
Thilo Hannemann schrieb:
"One feature, one OSM-object Don't place nodes in (equally labelled) areas just to see some icon appear on the map. The renderers will display icons on areas as well and there's no need to have every parking-lot, soccer-ground etc. twice in the database."
It is not true that all renderers will display icons for all areas.
Not yet perhaps.
It is also very questionable whether all renderers will always provide a meaningful positioning of automatically created icons, e.g. a simple approach will place the icon for an L-shaped area outside of the area.
If a simple approach won't give the desired result we should implement a better approach. This has to be done only once for the renderer(s) and not for all the items in the database. "We do not tag for the renderers." applies here.
I think that a manually placed POI is always preferrable over an automatically created one and the wiki is oversimplifying things here.
Actually this rule allows you to have manually placed POIs. But then you should not have the area labelled. And I think that is reasonable. Because otherwise a lot of items get duplicated in the database without any reliable way to determine whether they are duplicates or not. Therefore, I think the current algorithm for the add-pois-to-areas is sufficient, because it will correct most instances of those duplicate tags, which are errors in the database and should be corrected in the database anyway. Regards Thilo