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3d interpolation
Anyone have an easy to use method of doing a 3d lookup table with interpolation?
Thank you
I have weight vs current and it seems temperature in now playing into it
Customer support service by UserEcho
Hi Chuck,
We have done quite a bit of this on different applications. With MAC, LTC and ARRAY channels you can get quite creative. You could have a weight/current as LTC1. Take the output of this into a 2nd LTC1/temp.
If you can rationalise the data points then vectors is a very easy and simple way to do this inside MAC channels.
Nick.
does this sound reasonable if i have table at temp 40 and table at temp 0 of weight vs amps, to calculate 20 deg i simple find the 40 variable and the zero variable and find the difference (40var- 0var) and add half to the o degrees 0.5*(40var-0var)+0var? seems reasonable ?
even better, calculate the constant from temp and weight to amps and insert into one line on lookup for temp vs weight i get constant, fill out constants for other temperature planes. use interpolate on table. table may be big so use import function . I think this may work