index 121a65ef618fb5e2d95849bb50bf4724d5f262dd..b7bf370608c37488ea60891d5f7e1a011744d17b 100644 (file)
--- a/program/doc/rrdgraph.pod
+++ b/program/doc/rrdgraph.pod
[B<-Y>|B<--alt-y-grid>]
-Place the Y grid dynamically based on the graph's Y range. The
-algorithm ensures that you always have a grid, that there are enough
-but not too many grid lines, and that the grid is metric. That is the
-grid lines are placed every 1, 2, 5 or 10 units. (contributed by
-Sasha Mikheev)
+Place the Y grid dynamically based on the graph's Y range. The algorithm
+ensures that you always have a grid, that there are enough but not too many
+grid lines, and that the grid is metric. That is the grid lines are placed
+every 1, 2, 5 or 10 units. This parameter will also ensure that you get
+enough decimals displayed even if your graph goes from 69.998 to 70.001.
+(contributed by Sasha Mikheev).
[B<-o>|B<--logarithmic>]
may have to use this option to make enough space once you start
fideling with the y-axis labeling.
+[B<--units=si>]
+
+With this option y-axis values on logarithmic graphs will be scaled to
+the appropriate units (k, M, etc.) instead of using exponential notation.
+Note that for linear graphs, SI notation is used by default.
+
=back
=item Miscellaneous
transparency (FF is solid). You may set this option several times to alter
multiple defaults.
-A green arrow is made by: C<--color ARROW:00FF00>
+A green arrow is made by: C<--color ARROW#00FF00>
[B<--zoom> I<factor>]
Zoom the graphics by the given amount. The factor must be E<gt> 0
-[B<-n>|B<--font> I<FONTTAG>B<:>I<size>B<:>I<font>]
+[B<-n>|B<--font> I<FONTTAG>B<:>I<size>B<:>[I<font>]]
This lets you customize which font to use for the various text
elements on the RRD graphs. C<DEFAULT> sets the default value for all
Use Times for the title: C<--font TITLE:13:/usr/lib/fonts/times.ttf>
+If you do not give a font string you can modify just the sice of the default font:
+C<--font TITLE:13:>.
+
+If you specify the size 0 then you can modify just the font without touching
+the size. This is especially usefull for altering the default font without
+resetting the default fontsizes: C<--font DEFAULT:0:/usr/lib/fonts/times.ttf>.
+
RRDtool comes with a preset default font. You can set the environment
variable C<RRD_DEFAULT_FONT> if you want to change this.
should be set to 1024 so that one Kb is 1024 byte. For traffic
measurement, 1 kb/s is 1000 b/s.
+[B<-W>|B<--watermark> I<string>]
+
+Adds the given string as a watermark, horizontally centred, at the bottom
+of the graph.
+
=item Data and variables
B<DEF:>I<vname>B<=>I<rrdfile>B<:>I<ds-name>B<:>I<CF>[B<:step=>I<step>][B<:start=>I<time>][B<:end=>I<time>]
=head1 AUTHOR
-Program by Tobias Oetiker E<lt>oetiker@ee.ethz.chE<gt>
+Program by Tobias Oetiker E<lt>tobi@oetiker.chE<gt>
This manual page by Alex van den Bogaerdt E<lt>alex@ergens.op.het.netE<gt>