Hello, I use rrdtool since v1.0.xx to graph temperatures and pressures on our various test facilities. Now I'm trying to update rrdcgi.
The syntax for rrdcgi seems to have changed a bit as my old stuff is not working with 1.2.12. an example: > #!/usr/local/bin/rrdcgi > > <RRD::GRAPH - > --imgformat PNG > --vertical-label "pressure [mbar]" > --start <RRD::CV::QUOTE start> > --end <RRD::CV::QUOTE end> > --width <RRD::CV width> --height <RRD::CV height> > --logarithmic > DEF:p3=/var/scada/balzers.rrd:pres_3:AVERAGE > DEF:p5=/var/scada/stabil_ion.rrd:pres:AVERAGE > LINE2:p3#0000FF:"ColdCathode Chamber" > LINE2:p5#FF0000:"Stabil-Ion" > COMMENT:"\n" > COMMENT:"Graph updated: <RRD::TIME::NOW "%a, %d %b %Y %H:%M:%S > %Z">\r"> As you can see, I do not let rrdcgi create any HTML and the image output is feed directly to stdout. This script is called by a wrapper script which is the real cgi called by the webserver: > #!/bin/sh > > echo "Pragma: no-cache" > echo "Cache-control: no-cache" > echo "Content-Type: image/png" > echo "Expires: 0" > echo "" > > ./pressure_2_plot This 'real time setup worked perfectly. But not with v1.2.12... I can get rrdcgi to generate plots if the script looks like this: > #!/usr/local/bin/rrdcgi > > <RRD::GRAPH out.png > --vertical-label "pressure [mbar]" > --start <RRD::CV::QUOTE start> > --end <RRD::CV::QUOTE end> > --width <RRD::CV width> --height <RRD::CV height> > DEF:p3=/var/scada/balzers.rrd:pres_3:AVERAGE > DEF:p5=/var/scada/stabil_ion.rrd:pres:AVERAGE > LINE2:p3#0000FF:"ColdCathode Chamber" > LINE2:p5#FF0000:"Stabil-Ion"> Now, rrdcgi is used in its usual way, creating a file and generating an <img> tag on stdout. OK. BUT: as soon as I try to use the logarithmic parameter or the COMMENT stuff, no image is created, no error message somewhere, just nothing ... Any Ideas? Beat -- Beat ZAHND Physics Institute Space Research & Planetary Sciences University of Bern phone +41 31 631 3466 Sidlerstrasse 5 fax +41 31 631 4405 CH-3012 Bern (Switzerland) mailto:[EMAIL PROTECTED] -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-users WebAdmin http://lists.ee.ethz.ch/lsg2.cgi