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I have this nodes set up that creates instances of an object along a curve to make corrugated pipes that don't deform like the ones made with an array. It also uses the curve to make and interior pipe with smaller diameter to join the instances together The problem is that it places instances at the very end points of the curve and in a lot of situations it'd be better if the ends where only the smaller diameter pipe inside.

enter image description here

Is it possible to somehow limit the points that are used to generate the instances? As in, tell it 'ignore X number of points at the beginning of the curve' and 'ignore Y number of points at the end of the curve'

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  • $\begingroup$ Endpoint selection node > Boolean Math set to Not. $\endgroup$
    – Jakemoyo
    Commented May 20 at 13:24
  • $\begingroup$ Investigate the Endpoint Selection and Delete Geometry nodes. You should be able to delete the instances at the end of your curve using just those nodes and a boolean math node. $\endgroup$
    – John Eason
    Commented May 20 at 13:31
  • $\begingroup$ Sorry but I don't know enough geometry nodes to even know what that means $\endgroup$
    – Cornivius
    Commented May 21 at 9:22

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you can use this node setup:

enter image description here

to get this:

enter image description here

each point has an index. You can use the domain size to know how much points exist. So by delete geometry you can delete points depending on the index. The rest is simple math.

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  • $\begingroup$ Thanks you, much appreciated $\endgroup$
    – Cornivius
    Commented May 20 at 13:29
  • $\begingroup$ you are welcome $\endgroup$
    – Chris
    Commented May 20 at 14:08

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