Grasshopper

algorithmic modeling for Rhino

Gate AND bug (True + Nodata = True?)

Just found an odd little bug, or at least something unexpected when using the Gate AND component.

It appears that if one of the inputs is TRUE and one input has no data in it, that results in a TRUE, even though I would say, that should result in a FALSE, because only one input is TRUE and both need to be TRUE for it to be a proper Boolean AND, which is not the case.

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Replies to This Discussion

Permalink Reply by David Rutten on January 22, 2016 at 6:54am

It's because AND is a variable parameter component, you can add any number of inputs. They all have to be TRUE for the result to be TRUE, but any input which isn't defined does get ignored.

Permalink Reply by Armin Seltz on January 22, 2016 at 8:12am

Ok, that makes sense. Will check if it is valid and if not turn it into a FALSE.

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