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- Path: sparky!uunet!spool.mu.edu!agate!sunspot.berkeley.edu!rfanta
- From: rfanta@cea.berkeley.edu (Richard Fanta)
- Newsgroups: comp.lang.tcl
- Subject: Real-time graphing widget needed, clueless on Tcl/Tk
- Date: 21 Jan 93 14:24:45
- Organization: CEA @ UC Berkeley, Berkeley, CA, USA.
- Lines: 75
- Distribution: world
- Message-ID: <RFANTA.93Jan21142445@newport.cea.berkeley.edu>
- NNTP-Posting-Host: newport.cea.berkeley.edu
-
-
- Hi there,
-
- I originally posted to comp.windows.x (please see the original post
- below) looking for advice on how to do real-time graphing in X in a
- more robust way than using the stripchart widget in Xaw. Someone
- (thank you, Oliver Jones) told me that Tcl/Tk might be able to help
- and has some cool real-time strip chart widgets and the like.
-
- Could someone point me in the right direction, and tell me where to get started with Tcl, etc?
-
- Much thanks,
-
- Rick
-
- ---------------------------------------Cut Here--------------------------------------
-
- From rfanta@cea Wed Jan 20 16:00:21 1993
- From: rfanta@cea (Richard Fanta)
- Newsgroups: comp.windows.x
- Subject: Real-time graphing - call for suggestions
- Date: 20 Jan 93 13:55:12
- Organization: CEA @ UC Berkeley, Berkeley, CA, USA.
- Distribution: world
- NNTP-Posting-Host: newport.cea.berkeley.edu
-
-
- Hi there,
-
- I work for the Center for EUV Astrophysics at UC-Berkeley and we're
- trying to develop some real-time graphing applications to aid us
- with trend analysis for our satellite, the EUV (Extreme UltraViolet)
- Explorer. I'm not exactly an X guru yet, so advice of all sorts would
- be helpful and well heeded.
-
- Basically, what we want to do is plot at least a single monitor
- value (Detector photon count rates, mirror temperatures, et al.)
- versus time so that we can see if anything is degrading or suffering
- >from other unforseen fluctuations. Different monitors come down in
- different multiples of roughly one second intervals.
-
- What sorts of real-time graphing capabilities exist via the public
- domain?
- [Something beyond the stripchart widget in Xaw would be nice.]
- In commercial software?
- [I've started to contacting vendors, but tips would be appreciated.]
-
- Nice features to have:
- -some sort of hardcopy output, preferably Postscript is necessary
- -selectable auto or manual scaling
- -multiple plots on the same time axis (values possibly coming down
- at different rates)
- -mouse selectable time segments and/or ability to do blowups of key
- graph segments
- -basic axis labeling, selectable bars or point styles, etc.
-
- Right now we're using X11R4/5 and twm for the displays instead of
- Openwindows mainly because of performance issues (ie. 8Mb of memory
- vs. the 16Mb now on Sparcstations) on the workstations when the
- original software was developed. It may now be possible to use
- OpenWindows/XView or some other solution. Obviously it would be nice
- to be able to run existing Xt-based programs w/o modification.
-
- Once again, all tips are much appreciated.
-
- Much thanks,
-
- --------------------------------------------------------------------------------
- Rick Fanta e-mail: rfanta@cea.berkeley.edu
- Center EUV Astrophysics
-
- --
- --------------------------------------------------------------------------------
- Rick Fanta e-mail: rfanta@cea.berkeley.edu
- Center EUV Astrophysics
-