"round" channels while keeping sum of all channels

General TouchDesigner Discussion
1

I got 3 channels
chanA: 148,6667
chanB: 148,6667
chanC: 148,6667
added together these are 446

As panels can’t be positioned at a subpixel level, I need to “round” each channel to an integer while ensuring that the sum is still 446. It’s important that the system can handle a variable amount of channels. Attached file shows a simple example + add. remarks

example_round.toe (2.72 KB)
Any ideas?

Thanks
Achim

2

Here’s a CHOP network that’ll do it. There is one limitation, I needed to rename the channels so they were enumerated in order because of the way the Shuffle CHOP works. You could rename channels back to their previous names at the end I guess. Its kind of a weird way to do it, I would script the logic of this network myself, but since you were in CHOPs I decided to try to get the result from CHOPs-only. Hope it helps…
example_round.8.toe (3.29 KB)

3

yeah, it does help. Thank you! I managed to reduce your setup to a single CHOP solution. I could even stuff the expression into the “fitToAvailableHeight” CHOP for no additional CHOPs :slight_smile:

In case you’re interested, here’s the file
example_round.toe (3.63 KB)

4

Cool, I was just slapping my ideas down in CHOPs, but I knew it could be optimized. Glad it helped!