HRULE在rrdtool的

Question

MIN-值

我想以最低值水平線（HRULE）在我的RRD-GRAPH有任何好的結果:(

我只有一個數據源中的數據庫，結束腳本在PEARL編碼

#!/usr/bin/perl 

use RRDs; 

my $cur_time = time(); 
my $start_time = $cur_time - 86400; # sätt start ill 24 timmar sedan 
my $end_1 = time() - 86400; 
my $start_1 = $end_1 - 86400; 
RRDs::graph "/var/www/ute.png", 
      "--start= $start_time", 
      "--end= $cur_time", 
      "--title= outdoor temperature 1-WIRE 24h", 
      "--height= 600", 
      "--width= 1000", 
      "--vertical-label= °C", 
      "--upper-limit= 30", 
      "--lower-limit= -30", 
      "DEF:Temperatur=/home/nordviken/rrddata/ute_temp.rrd:ute:AVERAGE", 
      "CDEF:a=Temperatur,-50,0,LIMIT", 
      "DEF:b=/home/nordviken/rrddata/ute_temp.rrd:ute:AVERAGE:end= $end_1:start= $start_1", 
      "SHIFT:b:86400", 
      "COMMENT:\t\t\t\t  Nu  Medel Max  Min\\n", 
      "HRULE:0#003300", 
      "LINE1:Temperatur#ff0000:ute\t\t\t\t", 
      "LINE1:a#0000ff", 
      "LINE1:b#00ff00", 
      "GPRINT:Temperatur:LAST:%6.1lf", 
      "GPRINT:Temperatur:AVERAGE:%6.1lf", 
      "GPRINT:Temperatur:MAX:%6.1lf", 
      "GPRINT:Temperatur:MIN:%6.1lf\\n"; 

my $err=RRDs::error; 
if ($err) {print "problem med att skapa grafen: $err\n";} 

print "klar!\n" 

Answer 1

你可以使用

VDEF:m=Temperatur,MINIMUM 
LINE1:m#003300