I have calculated cost distance using a raster unrelated to path distance (a heat index) but would like to also measure the true path distance of those 'routes.' Is there a way to calculate such? If I simply calculate path distance, the tool obviously takes different paths than that used for cost distance. I'm using ArcMap.

  • Convert backlink raster to flow direction using Int(Pow(2,blink-1)) and use flow length from hydrology toolset.
    – FelixIP
    Jan 1 '20 at 5:51
  • @FelixIP This worked. Thank you!
    – YamCham
    Jan 3 '20 at 0:01
  • Please post workflow as answer to your own question. It's ok to accept it.
    – FelixIP
    Jan 3 '20 at 2:59

I took @FelixIP's suggestion and converted the backlink raster (from the cost distance tool) to flow direction using the formula Int(Power(2,"backlink"-1)) in raster calculator. I then used the flow direction raster as input for the flow length tool. This created a raster of true distance values corresponding to my cost distance raster.

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.