Select network lines that are within a certain distance along the network from multiple points

stalknecht wrote:

Use a Bufferer around the points and use a Clipper to get the results.

That is distance as the crow flies, but I need distance along the lines.

 

 

dvanriel wrote:

That is distance as the crow flies, but I need distance along the lines.

 

 

Ah, then the next link can help: https://knowledge.safe.com/articles/698/working-with-networks-topology-and-networktransfor.html

 

 

stalknecht wrote:

Ah, then the next link can help: https://knowledge.safe.com/articles/698/working-with-networks-topology-and-networktransfor.html

 

 

I have seen that page, and along with this article page and this answer page (both thanks to Safe's Mark Ireland i.e. Mark2) I was able to get contours at specific distance intervals. The problem is the long processing time for all those unneeded contours (I only need one distance contour, but the contour generator needs a interval), and that I would then generate areas from similar contours elevations (distances) but the lines don't always snap closed so those areas don't get generated (and using the LineCloser doesn't always give proper/valid polygons) and some areas are inverted (e.g. the area for an elevation is not from 0 to X, but X to max for that hill top) where there are hills and such.

 

 

I was wondering if there was a method to do what I need to do.

 

 

I see this page expands on the idea (specifically Takashi's reply). I don't have time to experiment with it right now. I hope to let you know by month's end.