#! @PERL@ #makes things work when run without install use lib qw( ../bindings/perl-shared/blib/lib ../bindings/perl-shared/blib/arch ); #makes programm work AFTER install use lib qw( @prefix@/lib/perl ../lib/perl ); use strict; use vars qw(@ISA $loaded); use RRDs; my $start=time; my $rrd="random.rrd"; RRDs::create ($rrd, "--start",$start-1, "--step",300, "DS:a:GAUGE:600:U:U", "DS:b:GAUGE:600:U:U", "RRA:AVERAGE:0.5:1:200"); my $ERROR = RRDs::error; die "$0: unable to create `$rrd': $ERROR\n" if $ERROR; my $t; for ($t=$start; $t<$start+200*300; $t+=300){ RRDs::update $rrd, "$t:".rand(100).":".(sin($t/800)*50+50); if ($ERROR = RRDs::error) { die "$0: unable to update `$rrd': $ERROR\n"; } } RRDs::graph "stripes.png", "--title", "Stripes Demo", "--start", $start, "--end", "start + 400 min", "--interlace", "--imgformat","PNG", "--width=450", "DEF:a=$rrd:a:AVERAGE", "DEF:b=$rrd:b:AVERAGE", "CDEF:alpha=TIME,1200,%,600,LT,a,UNKN,IF", "CDEF:beta=TIME,1200,%,600,GE,b,UNKN,IF", "AREA:alpha#0022e9:alpha", "AREA:beta#00b674:beta", "LINE1:b#ff4400:beta envelope\\c", "COMMENT:\\s", "COMMENT:alpha=TIME,1200,%,600,LT,a,UNKN,IF", "COMMENT:beta=TIME,1200,%,600,GE,b,UNKN,IF\\j"; if ($ERROR = RRDs::error) { print "ERROR: $ERROR\n"; }; print "This script has created stripes.png in the current directory\n"; print "This demonstrates the use of the TIME and % RPN operators\n";