Tagged Questions
8
votes
3answers
532 views
How does WiFiSLAM work?
Apple recently acquired WifiSlam. How does their technology work?
Their website doesn't go into much detail.
Allow your smartphone to pinpoint its location (and the location of
your friends) ...
13
votes
1answer
560 views
Trilateration algorithm for n amount of points
I need to find algorithm that can calculate centroid A (aka gravity center, geometric center, center of mass) from the figure where circles T1,T2,T3,T4,T5,..,Tn intersect
AND length of line R from ...
7
votes
5answers
196 views
What technique is used to acquire client location?
So far I know how to grab the client location to a application or web application by using the users geolocation or GPS location. I remember the possibility of finding the users approximate location ...
16
votes
2answers
4k views
Best GIS system for high performance web application - PostGIS vs MongoDB
I am working on a web/mobile application based on location data. Since i am already familiar with MongoDB, i found the geospatial indexing of mongo is quite suitable for my needs. As i am mainly ...
11
votes
6answers
1k views
What algorithm should I use for wifi geolocation?
School Pickup Use Case (update)
It might be helpful to go into a more concrete use case instead of the original backyard example below. Local law enforcement has started cracking down on use text ...
15
votes
9answers
1k views
How can I determine the location of a visitor to my website?
If I want to provide a website with location appropriate content, what ways can I use to find the visitor's rough location using their IP or header information?
