[rrd-users] Re: Area under graph?

[Serge Maandag]

Yes,

You can put whatever you like in a PRINT statement. I myself do this:

I put tildes as separators in my PRINT statement

PRINT:max0b:MAX:uplink1~max~%.1lf~Mbps
PRINT:max1b:MAX:uplink2~max~%.1lf~Mbps

And when I get the output from the PRINT statement, I seperate the
different items and build a table from them.
$stuff holds the output from the PRINT statement.

$output .= "<table>";
for my $line (@$stuff) {
    $output .= "<tr>";
    grep {$output .= "<td>$_</td>\n"} split "~", $line;
    $output .= "</tr>";
}
$output .= "</table>";

So now $output holds a table with the values.

Equally you could stash $start and $end in there.

Serge Maandag


-----Original Message-----
From: Simon Mullis [mailto:Simon.Mullis at equinoxsolutions.com] 
Sent: Wednesday, November 27, 2002 10:47 AM
To: Serge Maandag; rrd-users at list.ee.ethz.ch
Subject: RE: [rrd-users] Area under graph?


Thanks for this Serge.

Is there an easy way to express the timespan as a variable or output
from
RRDTool to then output via PRINT or GPRINT?  I am using a web form with
a
fairly free method of entering the start and end times and I think I
would
have to redevelop the pages if I had to express the time in a way that
would
allow me to convert into seconds easily. (I am using RRDcgi)

Many thanks in advance for any tips or help from anyone.

SM

-----Original Message-----
From: Serge Maandag [mailto:serge.maandag at staff.zeelandnet.nl]
Sent: 25 November 2002 19:49
To: Simon Mullis; rrd-users at list.ee.ethz.ch
Subject: RE: [rrd-users] Area under graph?


Use a cdef to multiply the bandwidth by the total timespan of the graph
and
gprint that cdef.
If you need the value in your script, you could PRINT it i.s.o.
GPRINTing
it.

So something like:

$timespan = 86400

def:bps=.....path to ds...
cdef:bytes=bps,$timespan,*
PRINT:bytes:AVERAGE:....

Serge Maandag

-----Original Message-----
From: Simon Mullis [mailto:Simon.Mullis at equinoxsolutions.com]
Sent: Monday, November 25, 2002 8:20 PM
To: 'rrd-users at list.ee.ethz.ch'
Subject: [rrd-users] Area under graph?




Hello all...

OK, I'm using rrdcgi and have written a few web pages that allow the
dynamic
input of the start / end date or time for the graph generation.

My question is quite simply:

How can I calculate the total area under a graph?  In this case I am
interested in the total amount of traffic transferred in a time period.

I have the average, from 

GPRINT:<var>:AVERAGE: ....

And I have the time period as a CGI variable.

Can I simply multiply them together to get the total traffic
transferred?
Is there a better way to do it?  Is there an undocumented :TOTAL:
variable?

Help and Thankyou!

SM

Simon Mullis
Service Development Consultant
simon.mullis at equinoxsolutions.com
Equinox Converged Solutions Ltd
Tel: +44(0)1252 405 600
Mob: +44(0)7766 087170
http://www.equinoxsolutions.com



------------------------------------------------------------------------
----
--------------
Equinox Converged Solutions Limited.
Tel: +44 (0)1252 405 600
http://www.equinoxsolutions.com

IMPORTANT NOTICE:
This message is intended solely for the use of the Individual or
organisation to whom it is addressed. It may contain privileged or
confidential information.  If you have received this message in error,
please notify the originator immediately.
If you are not the intended recipient, you should not use, copy, alter,
or
disclose the contents of this message.  All information or opinions
expressed in this message and/or any attachments are those of the author
and
are not necessarily those of Equinox Converged Solutions Limited.
Equinox Converged Solutions Limited accepts no responsibility  for loss
or
damage arising from its use, including damage from virus.
------------------------------------------------------------------------
----
--------------

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi