I'm in a course learning about GIS systems, and we have recently recorded a GPS track. I've exported this track as
.gpx and imported the points into QGIS.
Each point has a
timestamp. One of the things I'm interested in is finding the temporal resolution of my file, thereby needing some sort of 'delta time' between each pair of points.
So, what I want to know: How to do calculations between different points in a vector layer? I'm not experienced in Python (but MatLab would be possible I guess), so I'd like to do it with the field calculator.