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88 lines
3.0 KiB
PHP
88 lines
3.0 KiB
PHP
<?php
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/*
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* Outputs a graph with multiple overlaid lines
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*
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* Variables:
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* $rrd_list array required - array of data sets to graph. Each item is an array that contains the following
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* ds string required - data set name as defined in rrd
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* filename string required - path to the rrd file as generated by rrd_name()
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* descr string required - the label for this data set
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* colour string optional - Defines the colour for this data set (overrides the overall colour set)
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* area boolean optional - Colors in the area of the data set with 20% opacity (unless areacolor is set)
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* areacolor string optional - Sets the area color manually
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* invert boolean optional - multiplies values in this data set by -1
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* $colours string required - colour set as defined in $config['graph_colours']
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* $print_total boolean optional - Sum all the values and output the last, min, max, and avg in the legend
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* $simplerrd boolean optional - All data sets reside in the same rrd file
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*/
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require 'includes/graphs/common.inc.php';
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$descr_len = 12;
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if ($nototal) {
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$descr_len += '2';
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$unitlen += '2';
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}
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$rrd_options .= " COMMENT:'".rrdtool_escape($unit_text, $descr_len)." Now Min Max Avg\l'";
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$i = 0;
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$iter = 0;
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foreach ($rrd_list as $rrd) {
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// get the color for this data set
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if (isset($rrd['colour'])) {
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$colour = $rrd['colour'];
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} else {
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if (!$config['graph_colours'][$colours][$iter]) {
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$iter = 0;
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}
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$colour = $config['graph_colours'][$colours][$iter];
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$iter++;
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}
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if (!empty($rrd['area']) && empty($rrd['areacolour'])) {
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$rrd['areacolour'] = $colour."20";
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}
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$ds = $rrd['ds'];
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$filename = $rrd['filename'];
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$descr = rrdtool_escape($rrd['descr'], $descr_len);
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$id = 'ds'.$i;
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$rrd_options .= ' DEF:'.$id."=$filename:$ds:AVERAGE";
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if ($simple_rrd) {
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$rrd_options .= ' CDEF:'.$id.'min='.$id.' ';
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$rrd_options .= ' CDEF:'.$id.'max='.$id.' ';
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} else {
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$rrd_options .= ' DEF:'.$id."min=$filename:$ds:MIN";
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$rrd_options .= ' DEF:'.$id."max=$filename:$ds:MAX";
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}
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if ($rrd['invert']) {
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$rrd_options .= ' CDEF:'.$id.'i='.$id.',-1,*';
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$rrd_optionsb .= ' LINE1.25:'.$id.'i#'.$colour.":'$descr'";
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if (!empty($rrd['areacolour'])) {
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$rrd_optionsb .= ' AREA:'.$id.'i#'.$rrd['areacolour'];
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}
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} else {
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$rrd_optionsb .= ' LINE1.25:'.$id.'#'.$colour.":'$descr'";
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if (!empty($rrd['areacolour'])) {
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$rrd_optionsb .= ' AREA:'.$id.'#'.$rrd['areacolour'];
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}
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}
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$rrd_optionsb .= ' GPRINT:'.$id.':LAST:%5.2lf%s'.$units.' GPRINT:'.$id.'min:MIN:%5.2lf%s'.$units;
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$rrd_optionsb .= ' GPRINT:'.$id.'max:MAX:%5.2lf%s'.$units.' GPRINT:'.$id.":AVERAGE:'%5.2lf%s$units\\n'";
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$i++;
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}//end foreach
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$rrd_options .= $rrd_optionsb;
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$rrd_options .= ' HRULE:0#555555';
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