=item B<AREA> C<:> I<vname> C<#> I<color> [ C<:> I<legend> ] [ C<:> C<STACK> ]
-=item B<PART> : I<vname> B<#> I<rrggbbaa> [ B<:> I<legend> ]
+=cut
-=item B<TICK> : I<vname> B<#> I<rrggbbaa> [ : I<fraction> [ : I<legend> ] ]
-
-=back
+# =item B<PART> : I<vname> B<#> I<rrggbbaa> [ B<:> I<legend> ]
-=item B<to be implemented commands>
+=pod
-=over 8
+=item B<TICK> : I<vname> B<#> I<rrggbbaa> [ : I<fraction> [ : I<legend> ] ]
=item B<SHIFT> : I<vname> , I<offset>
B<LINEx> or B<AREA> it gets stacked on is not unknown. Use a CDEF
instruction with B<IF> and B<UN> to do so.
-=item B<PART> : I<vname> B<#> I<rrggbbaa> [ B<:> I<legend> ]
+=cut
-B<RRDtool> has now support for B<pie charts>. If you include the
-B<PART> command, the canvas is extended to make room for a chart
-The size of the canvas is determined by the lesser of
-L<width and height|rrdgraph/item_Size>.
+#=item B<PART> : I<vname> B<#> I<rrggbbaa> [ B<:> I<legend> ]
+#
+#B<RRDtool> has now support for B<pie charts>. If you include the
+#B<PART> command, the canvas is extended to make room for a chart
+#The size of the canvas is determined by the lesser of
+#L<width and height|rrdgraph/item_Size>.
+#
+#Pie parts will be concatenated, the first one will start at the
+#top and parts will be created clockwise. The size of the part
+#is defined by the value part of the L<VDEF|rrdgraph_data/VDEF>
+#function. It should return a number between 0 and 100, being a
+#percentage. Providing wrong input will produce undefined results.
-Pie parts will be concatenated, the first one will start at the
-top and parts will be created clockwise. The size of the part
-is defined by the value part of the L<VDEF|rrdgraph_data/VDEF>
-function. It should return a number between 0 and 100, being a
-percentage. Providing wrong input will produce undefined results.
+=pod
=item B<TICK> : I<vname> B<#> I<rrggbbaa> [ : I<fraction> [ : I<legend> ] ]
is 0.1 (10% of the axis). Note that the color specification is not
optional.
-=back
-
-B<THE NEXT COMMAND IS NOT YET IMPLEMENTED>
-
-=over 4
-
-=item B<SHIFT> : I<vname> , I<offset>
+=item B<SHIFT> : I<vname> : I<offset>
Using this command B<RRDtool> will graph the following elements
with the specified offset. For instance, you can specify an
=back
+=head1 NOTES on legend arguments
+
+=head2 Escaping the colon
+
+In a ':' in a I<legend> argument will mark the end of the legend. To
+enter a ':' into a legend, the colon must be escaped with a backslash '\:'.
+Beware, that many environments look for backslashes themselves, so it may
+be necessary to write two backslashes so that one is passed onto rrd_graph.
+
+=head2 String Formatting
+
+The text printed below the actual graph can be formated by appending special
+escaped characters at the end of a text. When ever such a character occurs,
+all pending text is pushed onto the graph according to the character
+specified.
+
+Valid markers are: B<\j> for justified, B<\l> for left aligned, B<\r> for
+right aligned and B<\c> for centered. In the next section there is an
+example showing how to use centered formating.
+
+Normally there are two space characters inserted between every two items
+printed into the graph. The space following a string can be suppressed by
+putting a B<\g> at the end of the string. The B<\g> also ignores any space
+inside the string if it is at the very end of the string. This can be used
+in connection with B<%s> to suppress empty unit strings.
+
+ GPRINT:a:MAX:%lf%s\g
+
+A special case is COMMENT:B<\s> this inserts some additional vertical space
+before placing the next row of legends.
+
+If you are using the proportional font in your graph, you can use tab characters
+or the sequence B<\t> to lin-up legend elements. Note that the tabs inserted are
+relative to the start of the current legend element!
+
=include see_also
projects / rrdtool.git / blobdiff