[OSM-dev] Info request on: additional GIS layers
andre+joost at nurfuerspam.de
Wed Mar 7 07:37:16 GMT 2012
Am 07.03.12 07:58, schrieb Tomas Straupis:
> The part of creating separate layers (say with mapnik) and
> presenting them (say with openlayers) is clear. Uncertain part (for
> me) is just the database part because I only have a general
> understanding of what would be required (I guess database and
> "something" which gives API to access that database from JOSM/Mapnik
Another question is how they keep their basic database in sync with ours?
If someone in OSM moves a node because he was there with his GPS unit,
or a new street/house/something is build, the two databases get
out-of-sync. So someone has to overlook every change in OSM, and decide
if it was a beginners error or not.
A lot of our POIs are placed in our database according to our street
ways. If we throw away our streets and import theirs, the POIs are
I am sure the governmental GIS has more place-accurate data, but
probably out-of-date at some places.
> Therefore my question is: where can I get more information about
> creating "own" database/api and setting up all infrastructure around
> it (f.e. authorisation, editors etc.). Or if there is any other
> approach of achieving this goal of "GIS layers"?
is what you are looking for.
Apart form that, Mapnik can render data from different databases, and
shapefiles and other sources:
shape : ESRI shapefile
postgis : Postgis table or query
raster : Tiled or stripped TIFF
gdal : GDAL supported raster dataset
ogr : OGR supported vector datasource
osm : Open Street Map
Or they can use the UMN Mapserver to combine Data from several sources.
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