each day. The labels are placed exactly between two major grid lines
as they specify the complete day and not just midnight.
+[B<--week-fmt> I<strftime format string>]
+
+By default rrdtool uses "Week %V" to render the week number. With this option
+you can define your own format, without completely overriding the xaxis format.
+
=head2 Y-Axis
[B<-y>|B<--y-grid> I<grid step>B<:>I<label factor>]
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
-you know from the PRING and GPRINT commands.
+you know from the PRINT and GPRINT commands.
=head2 Legend
disables the border. See C<SHADEA> and C<SHADEB> above for setting the border
color.
-[B<--zoom> I<factor>]
+[B<--dynamic-labels>]
+
+Pick the shape of the color marker next to the label according to the element drawn on the graph.
+
+[B<-m>|B<--zoom> I<factor>]
Zoom the graphics by the given amount. The factor must be E<gt> 0
the way RRDtool calculates its data. Some people favor a more 'organic' look
for their graphs even though it is not all that true.
-[B<-a>|B<--imgformat> B<PNG>|B<SVG>|B<EPS>|B<PDF>]
+[B<-a>|B<--imgformat> B<PNG>|B<SVG>|B<EPS>|B<PDF>|B<XML>|B<XMLENUM>|B<JSON>|B<JSONTIME>|B<CSV>|B<TSV>|B<SSV>]
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.
+For Export type you can define
+XML, XMLENUM (enummerates the value tags <v0>,<v1>,<v2>,...),
+JSON, JSONTIME (adds a timestamp to each data row),
+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")
+
[B<-i>|B<--interlaced>]
(this gets ignored in 1.3 for now!)
B<VDEF:>I<vname>B<=>I<RPN expression>
-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.
+
See L<rrdgraph_data> and L<rrdgraph_rpn> for the exact format.
NOTE: B<Graph and print elements>