Forgive me as this might be a really simple solution but i am not able to solve it. Is there a way to filter a list and get the index value of what has data and what does not? Here is an example list I am looking at. Not sure if it matters, but this is a Geometry.Intersect node result. Here is a screen shot of this node. I want to get the indexes of elements that intersect the structure so I can set parameters for just these.
You could use List.IsEmpty and List.AllIndicesOf like so:
Thanks Amy!!! I knew there was an easy solution… moving forward now with my script
Follow up to this… that works for an “Empty List” but now do i get same the information(indexes that contain data) if the list is “Null”
Use the List.Clean OOTB node. By looking at your image, you might need to use list levels.
I tried that and I can get to the indexes that have values, but I am looking to find the indexes that contain values so i can sort another list by this index number. I think it is failing because as Amy suggested above, use the list.isempty does not know what to do with the “null” values. Is there another node that will do this?
I tried that as well. Still cannot get what i need. I need a way to get the index of any element that has coordinates, so in the case above, I need to filter this list and get index 7. The original solution Amy provided above worked until my list started getting “null” values in it, and now it fails.
I feel like there might be a simpler way, but maybe not without Python or a package custom node works though
Maybe share your script? i’d like to understand why list returns in such manner.
Amy solved it again!! Two in a row today. Thank you Amy.
It is from a Geometry.Intersect Node and some elements don’t intersect, so I get “null” and “empty list” values… not sure exactly why