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

Subject: Re: Strip chart in CSS_BOY
From: "Kasemir, Kay" <[email protected]>
To: Josh Stein <[email protected]>, "[email protected]" <[email protected]>
Date: Thu, 17 Nov 2011 16:41:23 -0500

On 11/17/11 16:19 , "Josh Stein" <[email protected]> wrote:

>Silly question, but I cannot seem to find a simple way of doing a strip
>chart with BOY. I figured it would be an option under the X-Y plot, but
>fail to find anything. I thought first of using a system PV (like
>sys://time), but that seems restrictive.
>
>I would like the x-axis to be time; with a user-selectable "depth" to
>the graph.


You currently have two options:

1) Use the Data Browser Widget

Create New Data Browser Plot,
add PV
Set desired axis and time range
Save as *.plt
Add Data Browser Widget to BOY
Set its File Name to the *.plt



++ Can also display archived data
++ PV can be Œmonitored¹, showing brief spikes
-- Fewer display options



2) Use XYGraph Widget

Configure Behavior,
Trigger PV: ³sim://noise²
(This PV updates once a second and will trigger plot updates)

Primary X Axis(0),
Time Format: ³HH:MM:ss²
(To get a "time' axis)

Configure Trace 0,
Trace Type: Step Horizontally,
Update Mode: Trigger,
Y PV: Name of PV to plot

++ Has many more display options
-- Cannot show archived data
-- PV scanned at update rate, can miss brief spikes



Thanks,
Kay



References:
Strip chart in CSS_BOY Josh Stein

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