Hot answers tagged openstreetmap
2
Mapnik itself is basically just a rendering engine. As I understand, it can be used to render anything from tiles, to 8.5"x11", and even plotter-sized PDFs. To describe it very simply, Mapnik takes your data inputs, a spatial boundary, and a set of symbology styles (either hard-coded or an XML source), then it renders the map (potentially just a simple tile) ...
2
The Id editor is basically calling the OpenStreetMap API, and requesting the data in osm's xml format.
It basically makes a request like: http://www.openstreetmap.org/api/0.6/map?bbox=xmin,ymin,xmax,yamx
Once the data is received by the client, it is rendered using the connection.loadTiles function in id.js. The deployment code is hard to read, but you ...
1
You need to create a wrapper script to achieve this
#!/bin/sh
MAPSERV="/path/to/my/mapserv"
MAPFILE="/path/to/my/mapfile.map"
if [ "${REQUEST_METHOD}" = "GET" ]; then
if [ -z "${QUERY_STRING}" ]; then
QUERY_STRING="map=${MAPFILE}"
else
QUERY_STRING="map=${MAPFILE}&${QUERY_STRING}"
fi
exec ${MAPSERV}
else
echo "Sorry, I only understand ...
1
This basically depends about experience with libraries. OpenLayers is a one large size file library with lots of classes for several use cases. Leaflet is smaller so it has less features.
Tracking of the drivers cars using a tablet through my web app.
If you intend to use tablet devices you can also switch to native APIs of your system like Android and ...
1
Your question is very open ended and doesn't really have a definitive answer. You should check out this question for some good arguments for and against.
A lot of people use OpeLayers because of the huge amount of flexibility, but some people avoid it because it can be quite big (it should be pointed out that you can deploy 'Lite' versions). On the leaflet ...
1
I'm assuming that Osmosis and osm2pgsql create tables in the database with the PostGIS spatial columns. So, you should be able to either consume those tables as query layers, or register those tables as feature classes. If you register them as feature classes, applying the updates should just update the data in the table. This isn't a problem as long as ...
1
The new GDAL Version 1.10 supports Openstreetmap data:
http://www.gdal.org/ogr/drv_osm.html
If you are on Windows, you can get GDAL 1.10 precompiled from http://www.gisinternals.com/sdk/.
OSGeo4W does not yet have the 1.10 version.
1
If you look at the various data sources , you will see that OSM matches very well with Google's Satellite View. You can check it with this excellent tool from GeoFabrik. Just mouse over various locations, and you will also see the mouse location on the other map.
...
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