one point per branch maximum distance between them

Hi all!

I have a set of points organized in branches and I want to select just one point from each branch, but I want all of them to be separated as much as possible. One point per branch, maximum distance between them. JPG attached. Suggestions?

THX

Attachments:

pts max dist.jpg, 237 KB

Replies to This Discussion

Permalink Reply by Hannes Löschke on January 16, 2014 at 2:12pm

Are the points in separate spacial clusters or are they mixed? If they are clustered, selecting the one point closest to the average of all points might be a good approximation.

Permalink Reply by owe on January 17, 2014 at 2:15am

What do you mean by separate spacial clusters? Command "Group of points" or if each item of the branches is closed to all the items that belong to this branch? They are not group of points and the branches are not close to each other...

Permalink Reply by Hannes Löschke on January 17, 2014 at 8:01am

I mean for each list of Points in a tree branch, could you draw a convex shape around them all and not have any Point from the other branches inside?

Permalink Reply by owe on January 17, 2014 at 8:27am

Nop, nothing like the "hull" command.

Permalink Reply by owe on January 17, 2014 at 8:39am

I might rearrange the lists, though. Indeed I could set them in a way that each list in a tree branch forms a line. However, selecting the one point closest to the average of all points won´t work for me. Because in some cases the point that is further away from the rest is the last one or the first one, not one of the ones in the middle.

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