Hi there,
I would like to retrieve all indexes of the “true” or “0” values as seen in the picture. When I retrieved those indexes I would like to use the indexes to set the parameters of the walls to a new parameter.
Anyone got any ideas?
Welcome - I typically use Clockwork’s List.ReplaceItemAtIndex+ (the plus version allows multiple)
I also use List.AllIndiciesOf when looking for trues
I think you dont need to retrieve those indices, try this:
[2019-11-26] Dynamo Forum Post dylanUZJPA.dyn (18.8 KB)
PS: You can use the node “AllIindicesof” with a boolmask as second input to get all the indices of the true values.
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Thank you for your reply, actually I need the indexes of the true’s so I can use them to then set the corresponding wall type parameter to a new wall type
Hi Adam, I thought about using that as well except if I try it it either returns Empy List or -1. Do you know why?
You need to use list levels. IndexOf is looking at each item within your supplied list - which are sublists. It’s telling you that none of the sublists are equal to true.
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Yeah just like Nick said, use lists levels, your node is now looking at the wrong list level.
You can change list levels with the small “>” on every node.
in a piece of data there are levels, for each sublist there creates another level. you want to run the node on a specific level while retaining the structure of the list.
https://dynamobim.org/introducing-listlevel-working-with-lists-made-easier/
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