librenms-librenms/includes/html/graphs/sensor/power.inc.php

<?php

$scale_min = '0';

require 'includes/html/graphs/common.inc.php';

$rrd_options .= ' -A ';
$rrd_options .= " COMMENT:'                           Last    Max\\n'";

$rrd_options .= " DEF:sensor=$rrd_filename:sensor:AVERAGE";
$rrd_options .= " DEF:sensor_max=$rrd_filename:sensor:MAX";
$rrd_options .= " DEF:sensor_min=$rrd_filename:sensor:MIN";

$rrd_options .= ' AREA:sensor_max#c5c5c5';
$rrd_options .= ' AREA:sensor_min#ffffffff';

if ($sensor['poller_type'] == "ipmi") {
    $rrd_options .= " LINE1.5:sensor#cc0000:'".rrdtool_escape(ipmiSensorName($device['hardware'], $sensor['sensor_descr']), 21)."'";
} else {
    $rrd_options .= " LINE1.5:sensor#cc0000:'".rrdtool_escape($sensor['sensor_descr'], 21)."'";
}

$rrd_options .= ' GPRINT:sensor:LAST:%6.2lfW';
$rrd_options .= ' GPRINT:sensor:MAX:%6.2lfW\l';

if (is_numeric($sensor['sensor_limit'])) {
    $rrd_options .= ' HRULE:'.$sensor['sensor_limit'].'#999999::dashes';
}

if (is_numeric($sensor['sensor_limit_low'])) {
    $rrd_options .= ' HRULE:'.$sensor['sensor_limit_low'].'#999999::dashes';
}