From DAT to CHOP

General TouchDesigner Discussion
1

I have single values in separate DAT ops. I need to massage this data using the Range option in a Math CHOP. But how do I get from a DAT to a CHOP?

2

add a “DAT to” CHOP into your network, then just drag and drop your dat table ontop of the “DAT to” CHOP.

Paul

3

Thanks , yes got this working.
Only remaining hurdle is how and where to use simple math scripts to manipulate data.

4

the evaluate DAT lets you use simple math expressions to manipulate the data (use $V as the input cell value in 077). I hav enot used the expression CHOP for a while but I think that will do what you need in the CHOPs domain.

rod.

5

Thanks Rod
just scratching the surface but finding that TD really rocks…and is probably the only app that makes my Asus N56VZ laptop work overtime;)

6

in Tscript mode, you can use a fit() expression to do the ranging trick in DATs

so, using an evaluate DAT, you could put something like:

          `fit($V, 0, 1, -1, 1)`

to convert a range of 0 to 1 to a range of -1 to 1

I’ll have to go look up the python equivalent for 088 but you can still switch a dat to stoneage mode to make it use Tscript instead. Python is heaps better in so many ways that it is worth learning as quickly as you can. I’m a bit slow with it - ironic, since I was one of the people to pester them to switch to python. :slight_smile:

another handy thing with incoming data is the Limit CHOP that can normalise ranges on-the-fly.