Hello, at the moment i import OSM data into PostgreSQL for later use as PostGIS. So far everything is going fine.
I have some quite basic questions regarding the rendering of a map, could somebody be so kind and give me some comments? I understand that the 'Datasource' (e.g. PostGIS) contains the logical information that make up a map, so to say where is a street, where is a river, right? A 'Style' tells how to graphically visualise a certain category of data, e.g. to draw a river in blue, a forest in green and, is that right? I'm unsure about 'Rule', does it describe when to render a certain category? Something like "don't render streets if we look at the whole world"? 'Layer's are used to distinguish certain categories, it is more for the application to order categories, right? Is my understanding right or is there something missing? As i needed to download world_borders and also coast_line i guess these data sources are not contained in the huge "planet.osm", right? Thanks for any hints, Torsten. _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
