Automatic boolean toggle when data is updated

[gudjon1 (Gudjon)]

I’m having a hard time finding away around this issue.
I need a boolean function where the output is a constant False, but switches to True any time an input data updates.
This is very useful for running Galapagos for example, and being able to react to each iteration.

[Rickson]

0 being false and any integer being true, list length +1 on a stream filter should do it.

edit: Never mind, that only works on components taking buttons. If statement is the way to go.

How to detect an update/change of a number?

I guess the volume and/ or num of vertices of the mesh will never be identical to the previouse iteration of Millipede. The comparison of the Volume Mesh(current) with the previouse Mesh was just an idea of how to detect an geometry change and therefor to trigger Flexhopper again. No not yet. But you’re right that needs to be done as well. Otherwise Octopus would start a 2nd iteration after the 1st Flexhopper Iteration. But Anemone has the option “Output after the last”. So there needs to be 2n…

[thomas.lagarde]

Any practical solution yet (No code) This seems like a very useful thing to have.