Selecting objects based upon the distance

[archz2]

In Grasshopper for Rhino, one can set up the alogrithm to select objects based upon their proximity to a single object. 

 

See the video. 

 

Here is the Hip file in which I arrayed the geometry. 

 

selection question.hip

 

[Sepu]

There are a few possibilities in H for Sops you have Mask from Geometry, attrb transfer, Mops, etc

Vex, nearpoints, pcopen, etc 

 

[archz2]

I don't understand. How do I do it?

[Sean-R]

This looks to be exactly what you are after, you can even make a mask attribute with can drive a group expression node:

 

https://www.sidefx.com/docs/houdini/nodes/sop/distancefromgeometry.html

[paranoidx]

I guess this one can help you https://www.sidefx.com/docs/houdini/vex/functions/pcopen.html

Technically it will search within radius of a pt for neighbour pts and save to number of points found https://www.sidefx.com/docs/houdini/vex/functions/pcnumfound.html

[archz2]

17 hours ago, Sean-R said:

This looks to be exactly what you are after, you can even make a mask attribute with can drive a group expression node:

 

https://www.sidefx.com/docs/houdini/nodes/sop/distancefromgeometry.html

I don't understand. How do I use it?

 

11 hours ago, paranoidx said:

I guess this one can help you https://www.sidefx.com/docs/houdini/vex/functions/pcopen.html

Technically it will search within radius of a pt for neighbour pts and save to number of points found https://www.sidefx.com/docs/houdini/vex/functions/pcnumfound.html

I don't know VEX at all. 

[Sepu]

Here

mask.hip

[archz2]

Thank you so much!

 

How did you record this gif animation?

Edited August 26, 2021 by archz2

[Sepu]

sharex 

https://getsharex.com/

[archz2]

Cool!