How to generate nicely formatted columns in the legend graph?

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Hi,


Quick question, how can I create nice columns that won't mess up the layout
if numbers increment or decrements? Something like this:
http://martybugs.net/linux/rrdtool/images/traffic_detail.png

I'm not trying stuff like here below, but it doesn't handle changing
values, the columns shift position then...

 40       "DEF:cpu_user_avg=$RRDCOLLECT/stat_cpu.rrd:cpu_user:AVERAGE" \

 41       "DEF:cpu_nice_avg=$RRDCOLLECT/stat_cpu.rrd:cpu_nice:AVERAGE" \

 42       "DEF:cpu_system_avg=$RRDCOLLECT/stat_cpu.rrd:cpu_system:AVERAGE"
\
 43       "DEF:cpu_iowait_avg=$RRDCOLLECT/stat_cpu.rrd:cpu_iowait:AVERAGE"
\
 44       "DEF:cpu_user_min=$RRDCOLLECT/stat_cpu.rrd:cpu_user:MIN" \

 45       "DEF:cpu_nice_min=$RRDCOLLECT/stat_cpu.rrd:cpu_nice:MIN" \

 46       "DEF:cpu_system_min=$RRDCOLLECT/stat_cpu.rrd:cpu_system:MIN" \

 47       "DEF:cpu_iowait_min=$RRDCOLLECT/stat_cpu.rrd:cpu_iowait:MIN" \

 48       "DEF:cpu_user_max=$RRDCOLLECT/stat_cpu.rrd:cpu_user:MAX" \

 49       "DEF:cpu_nice_max=$RRDCOLLECT/stat_cpu.rrd:cpu_nice:MAX" \

 50       "DEF:cpu_system_max=$RRDCOLLECT/stat_cpu.rrd:cpu_system:MAX" \

 51       "DEF:cpu_iowait_max=$RRDCOLLECT/stat_cpu.rrd:cpu_iowait:MAX" \

 52       "DEF:cpu_user_last=$RRDCOLLECT/stat_cpu.rrd:cpu_user:LAST" \

 53       "DEF:cpu_nice_last=$RRDCOLLECT/stat_cpu.rrd:cpu_nice:LAST" \

 54       "DEF:cpu_system_last=$RRDCOLLECT/stat_cpu.rrd:cpu_system:LAST" \

 55       "DEF:cpu_iowait_last=$RRDCOLLECT/stat_cpu.rrd:cpu_iowait:LAST" \

 56       "TEXTALIGN:left" \

 57       "LINE1:cpu_user_avg$RED:User\:  " \

 58       "GPRINT:cpu_user_avg:AVERAGE:%3.1lf" \

 59       "GPRINT:cpu_user_min:MIN:%3.1lf" \

 60       "GPRINT:cpu_user_max:MAX:%3.1lf" \

 61       "GPRINT:cpu_user_last:LAST:%3.1lf" \

 62       "LINE1:cpu_nice_avg$GREEN:User (nice)\:" \

 63       "GPRINT:cpu_nice_avg:AVERAGE:%3.1lf" \

 64       "GPRINT:cpu_nice_min:MIN:%3.1lf" \

 65       "GPRINT:cpu_nice_max:MAX:%3.1lf" \

 66       "GPRINT:cpu_nice_last:LAST:%3.1lf" \

 67       "COMMENT:\n" \

 68       "LINE1:cpu_system_avg$BLUE:System\:" \

 69       "GPRINT:cpu_system_avg:AVERAGE:%3.1lf" \

 70       "GPRINT:cpu_system_min:MIN:%3.1lf" \

 71       "GPRINT:cpu_system_max:MAX:%3.1lf" \

 72       "GPRINT:cpu_system_last:LAST:%3.1lf" \

 73       "LINE1:cpu_iowait_avg$MAGENTA:I/O\:       " \

 74       "GPRINT:cpu_iowait_avg:AVERAGE:%3.1lf" \

 75       "GPRINT:cpu_iowait_min:MIN:%3.1lf" \

 76       "GPRINT:cpu_iowait_max:MAX:%3.1lf" \

 77       "GPRINT:cpu_iowait_last:LAST:%3.1lf"


--
Kind regards,
Kees de Jong  |  OpenPGP fingerprint: 0x0E45C98AB51428E6

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