Cost Paths from multiple starting points to one end point

Discussion created by sanderfox on Sep 27, 2011
Latest reply on Nov 2, 2011 by sanderfox

For my MA degree I'm currently studying the defensibility of some archaeological hilltop sites. For this, I want to do Least Cost Path analyses from points in a circle around the sites in question to the sites at the centre. Although I know how to do a usual Cost Path analysis from point A->B, I can't figure out what I need to do in my case, so I have a few questions.

1) Is there a way to get ArcGIS to generate points at regular intervals along the edge of a circle? Or is it only possible to do this manually?

2) How can I adapt the ModelBuilder model to calculate Least Cost Paths from multiple/all points around a site to the site itself simultaneously? I heard it's possible, but couldn't think of a solution for it myself. I must be overlooking something. Do I just make the same model over and over again for each starting point and then run it, or is there a faster way?

Thank you very much for any help you can give me.

All the best,