-=pod
+=pod
-=head1 NAME
+=head1 NAME
rrdgraph_graph - rrdtool graph command reference
=cut
-B<PART>B<:>I<vname>B<#>I<rrggbb>[I<aa>][B<:>I<legend>]
+#
+#B<PART>B<:>I<vname>B<#>I<rrggbb>[I<aa>][B<:>I<legend>]
+#
=pod
=item B<TICK>B<:>I<vname>B<#>I<rrggbb>[I<aa>][B<:>I<fraction>[B<:>I<legend>]]
Plot a tick mark (a vertical line) for each value of I<vname> that is
-non-zero and not *UNKNOWN*. The I<fraction> argument specifies the
-length of the tick mark as a fraction of the y-axis; the default value
-is 0.1 (10% of the axis). Note that the color specification is not
-optional.
+non-zero and not *UNKNOWN*. The I<fraction> argument specifies the length of
+the tick mark as a fraction of the y-axis; the default value is 0.1 (10% of
+the axis). Note that the color specification is not optional. The TICK marks normaly
+start at the lower edge of the graphing area. If the fraction is negative they start
+at the upper border of the graphing area.
=item B<SHIFT>B<:>I<vname>B<:>I<offset>
on top of the previous element. There must be something to stack
upon.
-You can use an B<invisible> LINE or AREA to stacked upon.
+You can use an B<invisible> LINE or AREA to stacked upon.
An B<unknown> value makes the entire stack unknown from that moment on.
You don't know where to begin (the unknown value) and therefore do