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Groups > comp.graphics.apps.gnuplot > #3282

Re: plot with offset in labels

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Karl Ratzsch wrote:

> Can anybody tell me what is wrong with this plot (tested in gp5.0.3)?
> 
> ====
> $data << EOD
> 402  32 6
> 404  107 22
> 406  139 51
> 
> 
> 402 34 6
> 404 64 22
> 406 84 51
> EOD
> 
> unset key
> 
> plot $data index 1 us 3:2 w p,\
>      $data index 0 us 3:2 w p
> 
> replot $data index 1 us 3:2:("left") with labels offset 2,0
> replot $data index 0 us 3:2:("up") with labels offset 0,1
> ====
> 
> If I comment out any of the two later plots, no error occurs.
> Without any offset, there is also no problem.


The problem is that "offset" in the general case takes up to 
3 following values: x, y, and z.  It stops if it doesn't encounter
a comma before the next value.   So this syntax confuses it:

  plot $foo ... offset x,y, $baz

because it tries to interpret $baz as a z offset value rather than
a new plot.

This was a problem for a long time, but it has been fixed in the
cvs version by teaching the relevant get_position_xxx() routines 
that in a 2D context they should only expect 2 values. 
That was largish set of patches that do not apply cleanly to 
version 5.0 so backporting is not automatic.

	Ethan

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plot with offset in labels Karl Ratzsch <mail.kfr@gmx.net> - 2016-04-01 21:54 +0200
  Re: plot with offset in labels Ethan A Merritt <EAMerritt@gmail.com> - 2016-04-01 18:08 -0700
    Re: plot with offset in labels Karl Ratzsch <mail.kfr@gmx.net> - 2016-04-03 19:36 +0200

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