Application of location and direction calculation to GIS. Including location and travel of vehicles, vessels, people and other craft.

learn more… | top users | synonyms

20
votes
7answers
7k views

Are there any Indoor GIS platforms?

What sort of infrastructure is needed to allow me to write a simple mobile app for indoor navigation? Professor Mike Goodchild said: the average American only spends 13 percent of the time ...
5
votes
2answers
2k views

Multilateration Code

I am currently writing some code to do multilateration using TDOA and currently struggling and wondering if anyone has any reference code that can be used as a test case with some sample data that I ...
3
votes
3answers
2k views

Missing tools (icons) QGIS

I lost selection and navigation tools from the GGIS 1.8 toolbar when I tried drag then to different place. I can't get them back anymore. Where they disappear? All these tools are checked but are ...
0
votes
2answers
278 views

World map with clear difference between land, sea and inland waterways

I'm looking for a free high resolution map that clearly indicates the land and sea in the world. I need it to calculate distances over sea between ports. Additionally it should also include inland ...
5
votes
1answer
288 views

Transit webapp development (journey planner)

I am going to develop a journey planner (like Google transit), i was just wondering that if there any opensource API available that can help me, or i have to do every thing on my own. And where can i ...
4
votes
2answers
3k views

Seeking free nautical route planner

Not actually a route planner, but it amounts to the same thing. I want to know the distance a vessel at sea must travel between two points. Obviously this isn't just a straight line thing, if there ...
1
vote
2answers
774 views

View Waypoints in OSM

I have a GPX file with my waypoints. <?xml version="1.0" encoding="UTF-8"?> <gpx version="1.0"> <name>My Favorites</name> <wpt lat="-26.7183013" lon="-54.8139346"&...
1
vote
0answers
167 views

Find Nearby GPS Navigation Route

I am developing a car pooling website. For that, I have created the database which has the different route options selected by different user. These routes are saved in the Database as Geography ...