LB view factors - problem with the number of input and output data

Hello everyone,

I am facing a problem that I don’t really understand. Indeed, on the LB View Factors function, I assign as input to view_geo a Brep of 517 numbers in m list.

But when I look at the number of results in output in view_factors, I have 518.

I don’t understand where this might come from and what is taken into account as other values.

Thank you for your feedback if you have any ideas.

Emma