3

Currently I have thousands of animal trails and I want to analyse the network to see which waterholes trails lead to or if they are fragmented by roads. I tried exporting the CSV file to gephi another software that analyses networks but it doesnt create a flow chart. So I'm wondering if I could do a flowchart on QGIS or an alternative. Below is a partial of my project enter image description here

And was aiming to get something like this...

enter image description here

  • Could you provide a screenshot of the trail network and an example of what you want to obtain? Even an example from a different context would help. – RafDouglas May 31 at 20:08
1

I will expand on this if needed, but you can create a sort of heatmap with gdal_rasterize, which can be accessed through the Toolbox (gear icon).

Make sure to use the -burn 1 -add options,si that the command reads like this:

gdal_rasterize -burn 1 -add -tr 50 50 -l lines yourlines.shp hotnodes.tif

Basically a raster is created, and in each pixel is assigned a value equal to the number of times a line crosses it.

https://gdal.org/programs/gdal_rasterize.html

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.