added percentnan (VDEF PERCENT variant that ignores NAN) -- patch by Martin Sperl

[rrdtool.git] / doc / rrdgraph.pod

diff --git a/doc/rrdgraph.pod b/doc/rrdgraph.pod
index 9a2f752..f7b6cac 100644 (file)
--- a/doc/rrdgraph.pod
+++ b/doc/rrdgraph.pod
@@ -93,6 +93,21 @@ one pixel will silently be ignored.
 A horizontal string at the top of the graph and/or a vertically
 placed string at the left hand side of the graph.
 
 A horizontal string at the top of the graph and/or a vertically
 placed string at the left hand side of the graph.
 

+=head2 Right Axis
+
+[B<--right-axis> I<scale>B<:>I<shift>]
+[B<--right-axis-label> I<label>]
+
+A second axis will be drawn to the right of the graph. It is tied to the
+left axis via the scale and shift parameters. You can also define a label
+for the right axis.
+
+[B<--right-axis-format> I<format-string>]
+
+By default the format of the axis lables gets determined automatically. If
+you want todo this your self, use this option with the same %lf arguments
+you know from the PRING and GPRINT commands.
+

 =head2 Size
 
 [B<-w>|B<--width> I<pixels>]
 =head2 Size
 
 [B<-w>|B<--width> I<pixels>]


@@ -155,7 +170,7 @@ and thus the throughput may be higher than the WAN line speed.
 
 In order to avoid anti-aliasing blurring effects rrdtool snaps
 points to device resolution pixels, this results in a crisper
 
 In order to avoid anti-aliasing blurring effects rrdtool snaps
 points to device resolution pixels, this results in a crisper

-aperance. If this is not to your liking, you can use this switch
+appearance. If this is not to your liking, you can use this switch

 to turn this behaviour off.
 
 Gridfitting is turned off for PDF, EPS, SVG output by default.
 to turn this behaviour off.
 
 Gridfitting is turned off for PDF, EPS, SVG output by default.


@@ -210,7 +225,7 @@ placed every I<label factor> lines.  You can specify C<-y none> to
 suppress the grid and labels altogether.  The default for this option is
 to automatically select sensible values.
 
 suppress the grid and labels altogether.  The default for this option is
 to automatically select sensible values.
 

-If you have set --y-grid to 'none' not only the labels get supressed, also
+If you have set --y-grid to 'none' not only the labels get suppressed, also

 the space reserved for the labels is removed. You can still add space
 manually if you use the --units-length command to explicitly reserve space.
 
 the space reserved for the labels is removed. You can still add space
 manually if you use the --units-length command to explicitly reserve space.
 


@@ -317,11 +332,11 @@ edge of the graph.
 
 Use Times for the title: C<--font TITLE:13:Times>
 
 
 Use Times for the title: C<--font TITLE:13:Times>
 

-If you do not give a font string you can modify just the sice of the default font:
+If you do not give a font string you can modify just the size of the default font:

 C<--font TITLE:13:>.
 
 If you specify the size 0 then you can modify just the font without touching
 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
+the size. This is especially useful for altering the default font without

 resetting the default fontsizes: C<--font DEFAULT:0:Courier>.
 
 RRDtool comes with a preset default font. You can set the environment
 resetting the default fontsizes: C<--font DEFAULT:0:Courier>.
 
 RRDtool comes with a preset default font. You can set the environment


@@ -454,7 +469,7 @@ See L<rrdgraph_graph> for the exact format.
 
 Calling rrdtool with the graphv option will return information in the
 rrdtool info format. On the command line this means that all output will be
 
 Calling rrdtool with the graphv option will return information in the
 rrdtool info format. On the command line this means that all output will be

-in key=value format. When used from the perl and ruby bindings a hash
+in key=value format. When used from the Perl and Ruby bindings a hash

 pointer will be returned from the call.
 
 When the filename '-' is given, the contents of the graph itself will also
 pointer will be returned from the call.
 
 When the filename '-' is given, the contents of the graph itself will also