each day. The labels are placed exactly between two major grid lines
as they specify the complete day and not just midnight.
each day. The labels are placed exactly between two major grid lines
as they specify the complete day and not just midnight.
By default the format of the axis labels gets determined automatically. If
you want to do this your self, use this option with the same %lf arguments
By default the format of the axis labels gets determined automatically. If
you want to do this your self, use this option with the same %lf arguments
the way RRDtool calculates its data. Some people favor a more 'organic' look
for their graphs even though it is not all that true.
the way RRDtool calculates its data. Some people favor a more 'organic' look
for their graphs even though it is not all that true.
Image format for the generated graph. For the vector formats you can
choose among the standard Postscript fonts Courier-Bold,
Image format for the generated graph. For the vector formats you can
choose among the standard Postscript fonts Courier-Bold,
Helvetica-BoldOblique, Helvetica-Oblique, Helvetica, Symbol,
Times-Bold, Times-BoldItalic, Times-Italic, Times-Roman, and ZapfDingbats.
Helvetica-BoldOblique, Helvetica-Oblique, Helvetica, Symbol,
Times-Bold, Times-BoldItalic, Times-Italic, Times-Roman, and ZapfDingbats.
+For Export type you can define XML, JSON, CSV (=comma separated values),
+TSV (=tab separated values), SSV (=semicolon separated values)
+(for comma/tab/semicolon separated values the time format by default is in the form of unix time. to change it to something else use: --x-grid MINUTE:10:HOUR:1:HOUR:4:0:"%Y-%m-%d %H:%M:%S")
+
-You need at least one B<DEF> statement to generate anything. The
-other statements are useful but optional.
+You need at least one B<DEF> and one B<LINE>, B<AREA>, B<GPRINT>, B<PRINT>
+statement to generate anything useful.
+