Hey guys! When rendering from PostgreSQL/PostGIS database by Python/Mapnik I receice the following ERROR: I took the steps like in http://switch2osm.org/serving-tiles/manually-building-a-tile-server/ My OS is Windows. I imported my africa.osm by osm2pgsql to my database. Is it possible, that the whole thing only works with the whole planet_latest.osm? asked 28 Mar '12, 14:50  MHein |
3 Answers:
Hi, Did you install the proj library? Usually you get this kind of error if the library cannot be found by programs. If you're not using a package like OSGeo4W, you need to set the environment variables correctly. From the Windows proj4 README.txt: The mapnik installation guide for windows also mentions the proj4 library if you're planning on using epsg codes HTH Frank answered 30 Mar '12, 15:46  frabron edited 30 Mar '12, 17:21 |
@frabon is right in that this error is related to mapnik not seeing the Proj4 libraries. I was able to fix this problem by creating an Environment Variable, I thought using the GDAL proj stuff was better than creating a redundant install. Of course, since I'm using true-blue WinXP32, I still needed to logout/login or reboot to apply the change. It definitely did the trick, though. answered 18 Dec '12, 22:38  elrobis |
Not sure about your problem, maybe you have to load the projection strings into your db (see Postgis docu for this). For your second question: I can confirm that osm2pgsql as well as the rest of the rendering stack works also with extracts, no need to use the whole planet. answered 30 Mar '12, 14:52  dieterdreist |
I'm guessing that there should be some backslashes in that?
Um, yes, of course. I saw them in the editor preview, but the actual view somehow ate them. I escaped them now ...
Thx.. got bored looking at blank maps