Jean-Edouard BABIN wrote: > >> Can draw vertical line every 0H ? > >> i have not seen anything about this.. > > > > There is no command that will repeat itself every midnight. However, > > nothing stops you from using multiple VRULE commands. > > You know what the start and end times are so you can figure out > > how often 00:00 occurs on your graph. > > yes, but it's not very easy..
rrdtool .... --end 'jun 30 00:00' --start end-8d .... so, you know you should loop through 8 days and, because 00:00 happens to be a boundary, you'll have 9 occurances of midnight. You can create a script that builds a RRDtool graph script. In this script you need 9 (or 7) VRULE commands. In a pseudo language you'd do: $midnight=`date -d "jun 30 00:00" +%s` for (i=0;i<9;i++) print "VRULE:${midnight}#FF0000" midnight -= 86400 or $midnight=`date -d "jun 30 00:00" +%s` $midnight -= 86400 for (i=0;i<7;i++) print "VRULE:${midnight}#FF0000" midnight -= 86400 This doesn't take daylight saving time into account so don't use this example as a complete solution! Another approach: You can change the default behaviour for the grid. Draw a major grid line only at midnight and maybe change its color. rrdtool graph .... --x-grid HOUR:8:DAY:1:DAY:1:86400:%a .... --color MGRID#FF0000 .... HTH -- __________________________________________________________________ / [EMAIL PROTECTED] [EMAIL PROTECTED] \ | work private | | My employer is capable of speaking therefore I speak only for myself | +----------------------------------------------------------------------+ | Technical questions sent directly to me will be nuked. Use the list. | +----------------------------------------------------------------------+ | http://faq.mrtg.org/ | | http://rrdtool.eu.org --> tutorial | +----------------------------------------------------------------------+ -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi