sort out points with the highest density

Hello guys,

any help would be appreciated.

I have this gradient mesh, depicting point density, red being the highest density and white the lowest. What I want to do is find the points with the highest density amongst their near ones. This would probably result in one point for each of the four or five areas (not necessarily red, since all areas do not have that much density). Any ideas anyone?

Thank you all!

regards

Panos

Attachments:

set points with the highest density.3dm, 1.2 MB
set points with the highest density.gh, 143 KB

Replies to This Discussion

Permalink Reply by peter fotiadis on May 30, 2015 at 6:42am

Hi Panos

Took the liberty to "minimize" (he, he) the thing of yours (PS: use option2 [nurbs]: the fastest).

Now we are ready for anything imaginable:

To clarify your requirement: you mean that you need a new DataTree for each point where the sorted [ and culled - based on some min/max dist criteria] distances from his neighbors are listed? Or something else? (absolutely anything is easily doable mind).

best, Peter

Attachments:

Point_density_relation_V1.gh, 482 KB

Permalink Reply by peter fotiadis on May 30, 2015 at 11:30am

In the trad V2 update I've added a proximity thingy as well (centroids VS your original pts sampled in the pList).

Handle with EXTREME care the proximity related sliders.

Added a small C# on top of the main that can guide you in choosing proper search values.

Added a remove duplicate pts option (lot's in your dataset).

Added ... er ... hmm ... a free bonus as well

Attachments:

Point_density_relation_V2.gh, 791 KB

Permalink Reply by Panos on May 31, 2015 at 10:48am

Peter, thank you very very much. I will check it out thoroughly and come back with questions most likely. Thanks again for the effort, the time and of course the bonus.

regards,

Panos

Permalink Reply by peter fotiadis on May 31, 2015 at 11:04am

Added another C# thingy (viz the proximity).

Corrected some ... oops moments (and added some more = progress, he he)

best

Attachments:

Point_density_relation_V2A.gh, 795 KB

Permalink Reply by Panos on May 31, 2015 at 11:41am

Can't thank you enough Peter! Your input is essential,

regards,

Panos

Permalink Reply by peter fotiadis on June 1, 2015 at 12:34am

BTW: I've followed (mostly) your line of thought for counting the beans but THIS IS NOT the way to do it (too slow and inefficient). Notify if you want the high performance V3.

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