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<== Date ==> <== Thread ==>

Subject: Re: Problem using waveforms with caget and camonitor
From: Ralph Lange <Ralph.Lange@bessy.de>
To: "Walters, M \(Malcolm\)" <M.Walters@diamond.ac.uk>
Cc: TECHTALK Tech-Talk <tech-talk@aps.anl.gov>
Date: Wed, 07 Jun 2006 09:26:53 +0200
Oops - good point!

I committed your suggested changes to the base repository, so they'll show up in the next release.

Thanks a lot,
Ralph


Walters, M (Malcolm) wrote:
I've just encountered a problem with both the command-line caget and
camonitor when you try to read waveforms in conjunction with other data.
If you try to read a single value followed by a waveform then you only
get the first point of the waveform. Similarly if you try to read a
shorter waveform followed by a longer waveform then you only get part of
the longer waveform.

Both of these are to do with how the maximum size is determined. To fix
these I have altered how these function calculate this size. If a
specified number of points is requested (using -# N) then that becomes
the maximum returned. Otherwise the whole array is read back always.

I hope this doesn't break any expected behaviour. The patches are
attached.

Malcolm

Malcolm Walters
01235 778557
Diamond Light Source Ltd. Rutherford Appleton Laboratory,
Chilton, Didcot, Oxfordshire OX11 0QX
Malcolm.Walters@diamond.ac.uk

References:
Problem using waveforms with caget and camonitor Walters, M (Malcolm)

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