I'm currently working on bird's data. I have coordinates of observation points and I'd like to measure the distance between points following a path. The given bird is probably moving from point to point therefore euclidean distance between 2 points is probably far from real distances.
Let's imagine I have 3 sites : A,B and C. B is between A and C: For going from A to C, the bird walk A → B → C so the distance AC is given by the sum of distances AB + BC.
I'm looking for the mean of getting quickly all possible distances: AB, BC and AC. I'm used to QGIS.
Of course, I could simply do the sum of euclidean distances myself but I have 15 points so it would be so long to get the distances for all points' couple.
Do you have an idea of how to do it automatically ?