RE: Math on Wavefrom PV in CSS

["Shroff, Kunal" <shroffk@bnl.gov>]

Hello Gabriel,

 

The currently the numerical operator "/" only works with scalars

 

In order to process waveforms you have to  use the formulas specifically designed to deal with arrays

=arrayDiv('PV_waveform', 500)

 

=arrayDiv ('PV_waveform', 32512) * 'PV_scalar'

 

You can find the complete list of array formulas (and many others) under

CS-Studio -> Debugging -> Formula functions -> array

 

 

-----Original Message-----
From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of Miroslav Gabriel
Sent: Saturday, February 13, 2016 11:51 AM
To: tech-talk@aps.anl.gov
Subject: Math on Wavefrom PV in CSS

 

Dear all,

 

my question is related to CSS and BOY.

 

I have a waveform PV of 16 bit integers which I'm displaying in a XY graph which is working fine.

 

But now I want to scale all the values and do some math on them but the syntax seems to be wrong:

 

='PV_waveform'/500

 

for example is working on scalar PVs, but not on waveforms. What am I doing wrong?

 

What I want to do in the end is the following:

 

='PV_waveform'/32512 * 'PV_scalar'

 

Any help would be greatly appreciated!

 

Regards,

M. Gabriel