Hi all, I am working with relocations from a telemetry study. I want to calculate the movement in meter over time along a physical boundary. There a some methods to calculate the distance between points along a line but since there are different individuals and the movement distance has to be correctly calculated by time this does not seem to work for me.
The point-shape with 500 relocations of 30 individuals looks something like this: ------------- ind, date 1,2012-08-05 1,2012-09-07 1,2012-10-15 . . 2,2012-08-05 . ------------- I was thinking of creating a line-shape with a given chainage (splitted every x meters?) perform a buffer and finally an intersect with the point-shape. But 1. how can I create a line-shape that is splitted every 10 meters.. 2. and how to write the chainage into the table ------------- chainage 1.540 1.200 0.450 . . 1.800 . ------------- The resulting point-shape should look likes this: ------------- ind, date, chainage 1,2012-08-05, 1.540 1,2012-09-07, 1.200 1,2012-10-15, 0.450 . . 2,2012-08-05, 1.800 . ------------- my approach seems to be a bit antiquated and clumsy but I am capable of learning. Any suggestions or any mistake made by me? Thanks, Jens
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