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<== Date ==> | <== Thread ==> |
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Subject: | Re: BOY FAQ: howto plot a live waveform record cartesian plot |
From: | Peter Milne <[email protected]> |
To: | "Chen, Xihui" <[email protected]> |
Cc: | Tech-talk <[email protected]> |
Date: | Thu, 01 Mar 2012 18:46:10 +0000 |
Hi Chen On 03/01/2012 06:25 PM, Chen, Xihui wrote:
Hi Peter, You can use XY Graph widget in BOY. Set "Y PV" as your waveform PV and set "Concatenate Data" to false.
^^^^^^^^^^^^^^^^^^^^^^^^^^^Yes, of course. That makes sense. At first there was this display that seemed to do nothing, then after a few minutes it morphed into a huge scrolling ..concatenation.. of all the data that had gone past.
Shoulda asked earlier, my waveform source is now c/o FEDEX.
See /BOY Examples/Miscellaneous/ArraysOperation/PlotFirstNPointsExample.opi
Great, looking forward to trying this Thank you! /Peter
Cheers, Xihui-----Original Message----- From: Peter Milne [mailto:[email protected]] On Behalf Of Peter Milne Sent: Thursday, March 01, 2012 1:08 PM To: Tech-talk Cc: Chen, Xihui Subject: BOY FAQ: howto plot a live waveform record cartesian plot Hi Chen Is there an example of this?. In a recent demo, I'd success plotting a live scalar PV to a stripchart with CSS data browser, but no joy in getting a live waveform record to plot (refresh 1..10Hz, complete redraw each time, like a scope). Luckily for me the MEDM cartesian plot still worked fine, but I'd far prefer to have it all under CSS. If we have to create an an actual OPI/BOY display to do this, that would be OK too, but an example to copy would be helpful. Thanks Peter -- Peter Milne [email protected] D-TACQ Solutions Ltd www.d-tacq.com
-- Peter Milne [email protected] D-TACQ Solutions Ltd www.d-tacq.com