Along a Corridor dynamo


I’m in my first steps to use Dynamo and I have a lot of beacuse problems I don’t understand some processes.
For ex:

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Can you share an image of what you have with node previews turned on so we can get a better idea of what’s happening?

thank you Nick for your answer.

My first boubt:

in each column what data are entered ?

second problem

what do the numbers (0; 1; 2) in the code block represent?

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I would highly recommend you go through the Dynamo Primer:
These are pretty basic components of Dynamo so you’re going to need to get familiar. The integers represent the indices of each sublist. If a list is made of 3 sublists they would be represented by the indices 0, 1, and 2.

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