New functions for CDEF ATAN2 RAD2DEG and DEG2RAD

[rrdtool.git] / doc / rrdgraph.pod

diff --git a/doc/rrdgraph.pod b/doc/rrdgraph.pod
index b87d9d7..121a65e 100644 (file)
--- a/doc/rrdgraph.pod
+++ b/doc/rrdgraph.pod
@@ -68,7 +68,7 @@ this case, no other output is generated.
 
 The start and end of the time series you would like to display, and which
 B<RRA> the data should come from.  Defaults are: 1 day ago until
-now, with the best possible resolution. B<Start> and B<end> can 
+now, with the best possible resolution. B<Start> and B<end> can
 be specified in several formats, see
 L<AT-STYLE TIME SPECIFICATION|rrdfetch/> and L<rrdgraph_examples>.
 By default, B<rrdtool graph> calculates the width of one pixel in
@@ -133,9 +133,9 @@ and thus the throughput may be higher than the WAN line speed.
 
 [B<-N>|B<--no-gridfit>]
 
-In order to avoid anti-aliasing effects gridlines are placed on 
-integer pixel values. This is by default done by extending 
-the scale so that gridlines happens to be spaced using an 
+In order to avoid anti-aliasing effects gridlines are placed on
+integer pixel values. This is by default done by extending
+the scale so that gridlines happens to be spaced using an
 integer number of pixels and also start on an integer pixel value.
 This might extend the scale too much for some logarithmic scales
 and for linear scales where B<--alt-autoscale> is needed.
@@ -252,12 +252,13 @@ Override the default colors for the standard elements of the graph. The
 I<COLORTAG> is one of C<BACK> background, C<CANVAS> for the background of
 the actual graph, C<SHADEA> for the left and top border, C<SHADEB> for the
 right and bottom border, C<GRID>, C<MGRID> for the major grid, C<FONT> for
-the color of the font, C<AXIS> for the axis of the graph and finally C<ARROW>
-for the arrow head pointing to the future. Each color is composed out of
-three hexadecimal numbers specifying its rgb color component (00 is off, FF is
-maximum) of red, green and blue. Optionally you may add another hexadecimal
-number specifying the transparency (FF is solid). You may set this option
-several times to alter multiple defaults.
+the color of the font, C<AXIS> for the axis of the graph, C<FRAME> for the
+line around the color spots and finally C<ARROW> for the arrow head pointing
+up and forward. Each color is composed out of three hexadecimal numbers
+specifying its rgb color component (00 is off, FF is maximum) of red, green
+and blue. Optionally you may add another hexadecimal number specifying the
+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>
 
@@ -291,6 +292,12 @@ This specifies the largest font size which will be rendered
 bitmapped, that is, without any font smoothing. By default,
 no text is rendered bitmapped.
 
+[B<-E>|B<--slope-mode>]
+
+RRDtool graphs are composed of stair case curves by default. This is in line with
+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>]
 
 Image format for the generated graph. For the vector formats you can