Forums Technical Discussion Could someone help to sort a bunch of curves procedurally?

Could someone help to sort a bunch of curves procedurally?

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daverosesumo
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hi all! I have 12 curves that rise up the Y axis and fan out over x and z. Some of their point orders are reversed. Ideally I would like the highest point number to be at the end of the curve, away from the origin. I can do this using the sort node on individual curves, but I cant figure out how to do it procedurally on the whole bunch. I want to avoid having to re-select the reversed curves if I need to change the curves further up my graph.

Over to you guys! All help appreciated!

Dave

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BunchofCurves.png (363.4 KB)

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BabaJ
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You could create an attribute based on the points UV on its' prim with the vex function xyzdist()....and use that attribute in a sort SOP.
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Boning
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1.create a root group using a bounding sphere 2.add distance along geo node to calculate @dist from the root group 3.Then use for each loop and a sort node to sort by @dist
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tamte
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1. Primitive Wrangle:
int pts[] = primpoints( 0, @primnum );
vector P0 = point( 0, "P", pts[0] );
vector P1 = point( 0, "P", pts[1] );

i@group_reverse = length(P1) < length(P0);

2. Reverse SOP - Source Group: reverse

3. Sort SOP - Point Sort: By Vertex Order
Edited by tamte - Nov. 14, 2024 14:58:05
Tomas Slancik
FX Supervisor
Method Studios, NY
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daverosesumo
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This is great thank you all for taking the time to reply. I'll try to implement this later today.

Thank you!
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