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<H2><A NAME="SECTION0402447000000000000000"></A>
<A NAME="commands_set_offsets"></A><A NAME="commands_unset_offsets"></A><A NAME="commands_show_offsets"></A><A NAME="set_offsets"></A><A NAME="unset_offsets"></A><A NAME="show_offsets"></A><A NAME="offsets"></A><A NAME="5643"></A>
<A NAME="nooffsets"></A><A NAME="5645"></A>
<BR>
Offsets
</H2>
Offsets provide a mechanism to put an empty boundary around the data inside
an autoscaled graph. The offsets only affect the x1 and y1 axes, and only in
2D <B>plot</B> commands.
<P>
Syntax:
<BR>
<PRE>
set offsets <left>, <right>, <top>, <bottom>
unset offsets
show offsets
</PRE>
<BR>
<P>
Each offset may be a constant or an expression. Each defaults to 0.
By default, the left and right offsets are given in units of the first x axis,
the top and bottom offsets in units of the first y axis. Alternatively, you
may specify the offsets as a fraction of the total axis range by using the
keyword <TT>"</TT>graph<TT>"</TT>. A positive offset expands the axis range in the specified
direction, e.g., a positive bottom offset makes ymin more negative. Negative
offsets, while permitted, can have unexpected interactions with autoscaling
and clipping. To prevent the auto-scaling from further adjusting your axis
ranges, it is useful to also specify <TT>"</TT>set auto fix<TT>"</TT>.
<P>
Example:
<BR>
<PRE>
set auto fix
set offsets graph 0.05, 0, 2, 2
plot sin(x)
</PRE>
<BR>
<P>
This graph of sin(x) will have a y range [-3:3] because the function
will be autoscaled to [-1:1] and the vertical offsets are each two.
The x range will be [-11:10] because the default is [-10:10] and it has
been expanded to the left by 0.05 of that total range.
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<ADDRESS>
2010-08-17
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