https://daq00.triumf.ca/MidasWiki/index.php?title=Mchart&feed=atom&action=history
Mchart - Revision history
2024-03-29T13:11:12Z
Revision history for this page on the wiki
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https://daq00.triumf.ca/MidasWiki/index.php?title=Mchart&diff=2064&oldid=prev
Suz at 23:48, 31 July 2015
2015-07-31T23:48:36Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:48, 31 July 2015</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Pagelinks}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Pagelinks}}</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">= Links =</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* [[stripchart]]</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">* [[History System]]</ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></div></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Purpose =</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Purpose =</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l11">Line 11:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># <span style="color:darkcyan;">''mchart''</span> will produce (at a fixed time interval) a refreshed '''data file''' containing the values of the numerical data specified in the configuration file. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># <span style="color:darkcyan;">''mchart''</span> will produce (at a fixed time interval) a refreshed '''data file''' containing the values of the numerical data specified in the configuration file. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>This file is then available for a stripchart program to be used for a chart-recording type of graph. Two possible stripcharts available <del style="font-weight: bold; text-decoration: none;">are</del>:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>This file is then available for a stripchart program to be used for a chart-recording type of graph. Two possible stripcharts <ins style="font-weight: bold; text-decoration: none;">are </ins>available:</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><div id="gstripchart"></div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><div id="gstripchart"></div></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; gstripchart</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; gstripchart</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>: The configuration file generated by <span style="color:darkcyan;">''mchart''</span> is compatible with the <del style="font-weight: bold; text-decoration: none;">GNU </del>stripchart which permits sophisticated data equation manipulation. On the other hand, the data display is not very fancy and provides just a basic chart recorder.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>: The configuration file generated by <span style="color:darkcyan;">''mchart''</span> is compatible with the <ins style="font-weight: bold; text-decoration: none;">GNOME </ins>stripchart which permits sophisticated data equation manipulation. On the other hand, the data display is not very fancy and provides just a basic chart recorder.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><div id="stripchart"></div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><div id="stripchart"></div></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; stripchart </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>; stripchart </div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>: This tcl/tk graphical stripchart data display application written by Gertjan Hofman provides a far better graphical chart recorder display tool, it also permits history save-set display, but the equation scheme is not implemented.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>: This tcl/tk graphical stripchart data display application written by Gertjan Hofman <ins style="font-weight: bold; text-decoration: none;">(see [[stripchart]]) </ins>provides a far better graphical chart recorder display tool, it also permits history save-set display, but the equation scheme is not implemented.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Arguments =</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>= Arguments =</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l134">Line 134:</td>
<td colspan="2" class="diff-lineno">Line 139:</td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> spawning graph with gstripchart -g 500x200-200-800 -f /home/chaos/chart/chv.conf ...</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> spawning graph with gstripchart -g 500x200-200-800 -f /home/chaos/chart/chv.conf ...</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Running a pre-existing configuration file and spawning [[#stripchart|stripchart]]<del style="font-weight: bold; text-decoration: none;">, this will work only if Tcl/Tk and bltwish packages are installed and the </del>stripchart<del style="font-weight: bold; text-decoration: none;">.tcl has been installed through the MIDAS Makefile.</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Running a pre-existing configuration file and spawning [[#stripchart|stripchart]] <ins style="font-weight: bold; text-decoration: none;">(see [[</ins>stripchart<ins style="font-weight: bold; text-decoration: none;">#Installation]])</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> chaos:~/chart> mchart -f chv.conf -gh</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> chaos:~/chart> mchart -f chv.conf -gh</div></td></tr>
</table>
Suz
https://daq00.triumf.ca/MidasWiki/index.php?title=Mchart&diff=2056&oldid=prev
Suz: Created page with "{{Pagelinks}} = Purpose = {{Utility|name=mchart}} is a MIDAS utility that assembles data from the ODB for a stripchart graphics program. = Features = {{Utility|name=mchart}}..."
2015-07-31T02:44:57Z
<p>Created page with "{{Pagelinks}} = Purpose = {{Utility|name=mchart}} is a MIDAS utility that assembles data from the ODB for a stripchart graphics program. = Features = {{Utility|name=mchart}}..."</p>
<p><b>New page</b></p><div>{{Pagelinks}}<br />
<br />
= Purpose =<br />
{{Utility|name=mchart}} is a MIDAS utility that assembles data from the ODB for a stripchart graphics program.<br />
<br />
= Features =<br />
{{Utility|name=mchart}} is a periodic data retriever of a specific path in the ODB, which can be used in conjunction with a stripchart graphic program. The mchart/stripchart feature has been largely superceded by the MIDAS [[History System]].<br />
<br />
In a two-step procedure<br />
# a specific path in the ODB can be scanned for composing a '''configuration file''' by extracting all numerical data references. The filename (e.g. filename.conf) is specified with the -f filename argument.<br />
# <span style="color:darkcyan;">''mchart''</span> will produce (at a fixed time interval) a refreshed '''data file''' containing the values of the numerical data specified in the configuration file. <br />
<br />
This file is then available for a stripchart program to be used for a chart-recording type of graph. Two possible stripcharts available are:<br />
<br />
<div id="gstripchart"></div><br />
; gstripchart<br />
: The configuration file generated by <span style="color:darkcyan;">''mchart''</span> is compatible with the GNU stripchart which permits sophisticated data equation manipulation. On the other hand, the data display is not very fancy and provides just a basic chart recorder.<br />
<div id="stripchart"></div><br />
; stripchart <br />
: This tcl/tk graphical stripchart data display application written by Gertjan Hofman provides a far better graphical chart recorder display tool, it also permits history save-set display, but the equation scheme is not implemented.<br />
<br />
= Arguments =<br />
[-h ] : help<br />
[-h hostname ] : host name.<br />
[-e exptname ] : experiment name.<br />
[-D ] : start program as a daemon (prevented if -c or -q) <br />
requires [[MIDAS environment variables#MCHART_DIR|MCHART_DIR]]<br />
[-u time] : data update periodicity (def:5s).<br />
[-f file] : configuration or data file name<br />
[-q <span style="color: purple; font-style:italic;"><ODBpath></span> ] : equipment ODB path<br />
[-b lower_value] : sets general lower limit for all variables (only with -q)<br />
[-t upper_value] : sets general upper limit for all variables (only with -q)<br />
[-c ] : create config only<br />
[-k ] : keep spawned stripchart or gstripchart<br />
[-g ] : spawn Hofman stripchart or gstripchart if possible<br />
[-gg ] : force the spawning of gstripchart for graphic.<br />
[-gh ] : force the spawning stripchart (tcl/tk) for graphic.<br />
<br />
= Usage =<br />
Creation : mchart -e myexpt -h myhost -c<br />
-f mydata -q /equipement/myeqp/variables<br />
Running : mchart -e myexpt -h myhost -f mydata<br />
Run/Graph : mchart -e myexpt -h myhost -f mydata -g<br />
MCHART_DIR: environment variable for mchar directory<br />
<br />
The configuration contains one entry for each variable found under the {{Odbpath|path=<ODBpath>}}requested. The format is described in the [[#gstripchart|gstripchart]] documentation.<br />
<br />
Once the configuration file has been created, it is possible to apply any valid operation (equation) to the parameters of the file following the gstripchart syntax. In the case of the use of the [[#stripchart|stripchart]] from G.Hofman, only the "filename", "pattern", "maximum", "minimum" fields are used.<br />
<br />
When using {{Utility|name=mchart}} with the -D Argument, it is necessary to have the MIDAS environment variable [[MIDAS environment variables#MCHART_DIR|MCHART_DIR]] defined in order to allow the daemon to find the location of the configuration and data files.<br />
<br />
= Example Configuration File =<br />
chaos:~/chart> more trigger.conf <br />
#Equipment: >/equipment/kos_trigger/statistics<br />
menu: on<br />
slider: on<br />
type: gtk<br />
minor_ticks: 12<br />
major_ticks: 6<br />
chart-interval: 1.000<br />
chart-filter: 0.500<br />
slider-interval: 0.200<br />
slider-filter: 0.200<br />
begin: Events_sent<br />
filename: /home/chaos/chart/trigger<br />
fields: 2<br />
pattern: Events_sent<br />
equation: \$2<br />
color: \$blue<br />
maximum: 1083540.00<br />
minimum: 270885.00<br />
id_char: 1<br />
end: Events_sent<br />
begin: Events_per_sec.<br />
filename: /home/chaos/chart/trigger<br />
fields: 2<br />
pattern: Events_per_sec.<br />
equation: $2<br />
color: \$red<br />
maximum: 1305.56<br />
minimum: 326.39<br />
id_char: 1<br />
end: Events_per_sec.<br />
begin: kBytes_per_sec.<br />
filename: /home/chaos/chart/trigger<br />
fields: 2<br />
pattern: kBytes_per_sec.<br />
equation: $2<br />
color: \$brown<br />
maximum: 898.46<br />
minimum: 224.61<br />
id_char: 1<br />
end: kBytes_per_sec.<br />
<br />
= Example Data File =<br />
A second file (data file) will be updated a fixed interval by the {{Utility|name=mchart}} utility.<br />
<br />
chaos:~/chart> more trigger<br />
Events_sent 6.620470e+05<br />
Events_per_sec. 6.463608e+02<br />
kBytes_per_sec. 4.424778e+02<br />
<br />
= Example =<br />
<br />
* Creation with <span style="color: purple; font-style:italic;"><ODBpath></span> being one array of 2 elements in the <span style="color: purple; font-style:italic;">/Variables</span> subdirectory :<br />
<br />
chaos:~/chart> mchart -f chvv -q <span style="color: purple; font-style:italic;">/equipment/chv/variables/chvv</span> -c<br />
chaos:~/chart> ls -l chvv*<br />
-rw-r--r-- 1 chaos users 474 Apr 18 14:37 chvv<br />
-rw-r--r-- 1 chaos users 4656 Apr 18 14:37 chvv.conf<br />
<br />
* Creation of all the sub-keys in the <span style="color: purple; font-style:italic;">/Variables</span> subdirectory :<br />
<br />
mchart -e myexpt -h myhost -f chv -q <span style="color: purple; font-style:italic;">/equipment/chv/variables</span> -c<br />
<br />
* Creation and running in debug:<br />
<br />
chaos:~/chart> mchart -f chv -q <span style="color: purple; font-style:italic;">/equipment/chv/variables</span> -d<br />
CHVV : size:68<br />
<span style="color:brown">#name:17 #Values:17<br />
CHVI : size:68</span><br />
<br />
* Running a pre-existing conf file (chv.conf) debug:<br />
<br />
chaos:~/chart> mchart -f chv.conf -d<br />
CHVV : size:68<br />
<span style="color:brown">#name:17 #Values:17</span><br />
CHVI : size:68<br />
<span style="color:brown">#name:17 #Values:17</span><br />
<br />
* Running a pre-existing configuration file and spawning [[#gstripchart|gstripchart]] :<br />
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chaos:~/chart> mchart -f chv.conf -gg<br />
spawning graph with gstripchart -g 500x200-200-800 -f /home/chaos/chart/chv.conf ...<br />
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* Running a pre-existing configuration file and spawning [[#stripchart|stripchart]], this will work only if Tcl/Tk and bltwish packages are installed and the stripchart.tcl has been installed through the MIDAS Makefile.<br />
<br />
chaos:~/chart> mchart -f chv.conf -gh<br />
spawning graph with stripchart /home/chaos/chart/chv.conf ...<br />
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[[Category:Utilities]]</div>
Suz