imagevalue.gh (255.5 KB) The purpose is to remove duplicated points. There is a plugin component called removeduplicatedpt, but because exploring GH is part of the goal, taking a more difficult path. Simply put, how would you match the structure formed by the set index and point coordinate data? H…

When you created a set of points, you already got a list of all unique points. Alternatively you can use the native CullPt component [image]

CullPt is the better choice here because of providing a tolerance. A point is usually represented by floating point numbers, and as soon as a value is the result of a computation, the equality check is not going to work. You check equality with a so called epsilon-equals comparison. Therefore using …

[image] {Set} NOT taking Primitive data directly, Why? Grasshopper I think also for points you should not use the set component. There is a dedicated duplicate points component and kangaroo has a component that works with lines

pathMapper - 2.gh (248.4 KB) …made things difficult for me, but it’s interesting to investigate the Path Mapper component in the future. @Kyuubimode , Would you confirm that the same outcome was obtained? I was unaware of the existence of the component you mentioned. Thanks. [fix] @TomTom @mart…

[image] Mathew: Would you confirm that the same outcome was obtained? Again the outcome is the same if you set coordinates, but as soon as you compute a floating point number you might not get the same number. An epsilon equals comparison is more costly, but often required. floatA == floatB …

Cool, I’ll need to “search” for it.

pathMapper - 2.gh (251.5 KB) Y,ll Accidentally discovered another way to organize the index. See the group highlight. [Canvas]

FYI, here is a quick proof on why it’s a bad idea to use “set”. Therefore note that in Python a set is defined with curly braces. And by providing 3x 6.6 (created in different ways), you would expect only 1 entry in that set. But it’s giving you 2. [Bildschirmfoto 2026-05-10 um 20.07.24]

I’m confused. I still have the impression that you don’t see the problem. Never mind, I also posted this in case someone else believes that using a Grasshopper set is a genius idea for this type of problem.

{SET} Method: Removing Dup Points - How?

Grasshopper

martinsiegrist (Martin Siegrist) May 7, 2026, 6:06am 4

Topic		Replies	Views
{Set} NOT taking Primitive data directly, Why? Grasshopper windows	6	111	May 5, 2026
Get the index of removed points in CULL DUPLICATES (POINTS) Grasshopper	7	4982	January 30, 2024
Distinct() method to remove duplicate points Grasshopper windows	3	666	September 6, 2022
Gridpoints question Grasshopper	9	1025	March 25, 2017
Optimize large data manipulation Grasshopper windows	23	1327	April 4, 2024

{SET} Method: Removing Dup Points - How?

Related topics