Hello, I currently have two lists with almost similar point coordiantes, but with different orders. I want to get both list in the same order, but one order is fixed. So I’m looking for a function to give me the index of the similar point in the other list, so I can oder them this way. I hope I co…

@klara.steinMZ7FJ set the lacing to Cross Product for Geometry.DoesIntersect node.

Hi @klara.steinMZ7FJ , You can use the node List.IndexOf to get the first matching index. List.AllIndicesOf returns all indices, but I don’t think you’ll need that one here.

Thank you, but I already tried that and I think it is not working, because the points aren’t exactly the same. I think I need to combine the IndexOf and ClosestPointTo function in some way, but I don’t know how.

@klara.steinMZ7FJ can you try this? Creating bounding boxes instead of geometry would be beneficial in terms of performance when you have thousands of points. [image]

If you have a known level of tolerance it would be easier to rebuild all your points to that tolerance and then compare. When comparing point or curve geometry like this it’s also best to compare strings rather than the actual geometry objects, as the stored values may not be exactly the same even i…

Thank you, this looks like the solution I need, but unfortunately it’s not working with my points. I don’t finde the mistake I made, maybe you’ll see something? [image]

Ahh! Thank you so much! I’m new to Dynamo and didn’t know that I could change the lacing and it’s sooo usefull. It works now, thanks!

Sorting points to match another point list

Revit

Daan June 23, 2022, 7:14am 4

Okay that changes the question a little bit. Then I would recommend using the node Geometry.DistanceTo, see this example below which I created yesterday for someone else, I think this solution applies for you aswell:

Topic		Replies	Views
Index when compairing two list of points Geometry dynamo	3	374	June 10, 2021
Searching sublist and find closest point to given point sublist Lists-Logic	4	1897	August 23, 2016
List.AllIndicesOf not working Lists-Logic	10	1479	August 28, 2016
Projecting/remapping indices of listA on listB Lists-Logic geometry	2	424	June 24, 2022
IndexOf Points Revit revit , dynamo	3	236	November 22, 2022

Sorting points to match another point list

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