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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | caQtDM questions |
| From: | "Baily, Scott A" <[email protected]> |
| To: | EPICS Tech-Talk <[email protected]> |
| Date: | Thu, 24 May 2018 16:35:54 +0000 |
|
I’ve been looking into caQtDM (I’ve used it for a few small projects already). Some questions have come up, that don’t seem to be mentioned in the manual. Is there a way for the waterfall plot to plot multiple scalar channels or only a single channel? I couldn’t seem to multiple channels to work, but I don’t know if it is supposed to. Could one construct a vector from several scalars using
a soft variable? Is there any documentation on PV specifications? Soft pv’s appear to be an option, but I don’t see how to create them. We have some PVs with {curly braces in their name (i.e., {}) caQtDM use these for specifying JSON strings to set the display rate. If there a way to escape this or otherwise enclose it so that the entire thing can be considered part of the channel name? EDM uses prefixes: EPICS\ for epics PVs (this is the default, but specifying this can work around parsing issues), LOC\ for local PVs, and CALC\ for calculations. -- correspondence -- Scott Baily AOT-IC, MS H820 Los Alamos National Laboratory Los Alamos, NM 87545 ph: (505) 606-2260 |