Questions tagged [gpstools]

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8
votes
2answers
1k views

How to perform Spline interpolation on GPS Track

I'm looking for a way to apply spline interpolation to a gps track (Gpx format). I am a regular QGIS user and also have GDAL libraries installed on my mac if that helps. Basically trail and ride ...
5
votes
1answer
2k views

Determining GPS Position from Elevation, Azimuth, SNR

I'd like to calculate the receiver GPS location myself, without relying on high-level API. A few questions there: I am looking at an Android app that can show GPS satellites, on a diagram like this ...
2
votes
0answers
43 views

GPS accuracy for blind person O&M

I would like to be able to use GPS on my phone, in conjunction with an app, to enable O&M (Orientation and Mobility) support, on my device. I want the app to tell a blind person walking along a ...
1
vote
0answers
21 views

How to send GPX file to a GPS device [duplicate]

I'm using QGIS 2.0.1 and want to send a GPX file to a GPS device, Garmin Astro 320. When using the GPS Tool in QGIS and click the OK button I get the message Can not start GPSBabel! What's ...
1
vote
1answer
1k views

Calculating radius of curvature and banking angle when set of lat, long and elevation are given?

I have set of lat,long and elevation values with me. Can you help me find the Radius of curve and banking angle. Formulae may be provided as an answer.
0
votes
1answer
55 views

GPS and directional layer for GPS points

I have millions of GPS location data for some vehicles and a street network for a city. PROBLEM: In an intersection approach, there are points which are entering the intersections and there are ...
1
vote
0answers
277 views

GPS with QGIS--what happened to the capture point?

I have been using QGIS for years but when v. 2 came out and important functionality seems to no longer work. In 1.8 the "capture point" or "capture line" buttons on the GPS panel would work. Ever ...