[rrd-users] Re: line breaks with shared rrd

[Warnes, Jason SktnHR]

I don't believe that the "\n" is a possible escape sequence for either the
PRINT or GPRINT statements.  What I've had to do in order to get a line
break between items is add a couple of "COMMENT:\\s" fields like.  Using
your Perl script, try this one out:

RRDs::graph ("img.gif","-s","-86400",
"-v","bits por segundo","-t","Política qos-policy", "-w","500","-h","200",
"DEF:mibMatchany=Matchany166-5.rrd:msinbytes:AVERAGE",
"CDEF:bmibMatchany=mibMatchany,8,*",
"LINE2:bmibMatchany#006699: Match any in",
"COMMENT:Max:",
"GPRINT:bmibMatchany:MAX:%2.2lf%s \n",
"COMMENT:\\s",
"COMMENT:\\s"
"COMMENT:\\s",
"COMMENT:avg:",
"GPRINT:bmibMatchany:AVERAGE:%2.2lf%s",
"COMMENT:Last:",
"GPRINT:bmibMatchany:LAST:%2.2lf%s");

For this you need to use the double backslash so Perl doesn't think it's an
escape sequence for it.

Hope this helps.

Jason...

-----Original Message-----
From: Augusto Castelan Carlson [mailto:carlson at npd.ufsc.br] 
Sent: Tuesday, September 16, 2003 7:42 AM
To: rrd-users at list.ee.ethz.ch
Subject: [rrd-users] line breaks with shared rrd


Hi!

I did a Perl script (for web) to draw some graphs. I'm using the 'shared 
rrd' library module and trying to get line breaks at the comment or 
gprint, but it's not working. I looked at the archives, man page and 
examples, but it did not help. I tried using \n and \\n. What is wrong?

RRDs::graph ("img.gif","-s","-86400",
"-v","bits por segundo","-t","Política qos-policy", "-w","500","-h","200",
"DEF:mibMatchany=Matchany166-5.rrd:msinbytes:AVERAGE",
"CDEF:bmibMatchany=mibMatchany,8,*",
"LINE2:bmibMatchany#006699: Match any in",
"COMMENT:Max:",
"GPRINT:bmibMatchany:MAX:%2.2lf%s \n", <===
"COMMENT: \n",  <===
"COMMENT:avg:",
"GPRINT:bmibMatchany:AVERAGE:%2.2lf%s",
"COMMENT:Last:",
"GPRINT:bmibMatchany:LAST:%2.2lf%s");

linux RH9, perl 5.8.0 and rrdtool 1.0.45

Thank you!

Augusto

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