GPGET('terminal')

[Petr M. <mi...@ph...>]

It seems that are some request how to get some gnuplot internal variables 
into the user space. For example, the current x and y ranges or the current 
terminal name. Thus, the following could be helpful:

a = GPGET("terminal")   =>  return "x11"
a = GPGET("termoptions")   =>  return "enhanced noraise"
xmin = GPGET("xmin")    =>  return min of xrange of the last plot
... GPGET("xmax"), "y2min", "cbmin", etc.

Only few variables, the most important, should be availabe now -- others 
could be added on user's request any later, without poluting the user 
space with new var/funcs.

That would solve this major problem (necessary before 4.2): Do you know 
"gzoom" in Matlab/Octave? This command asks user to zoom-in the region of 
interest. However, in gnuplot, you cannot access this range by 
functions/variables -- it can only by printed to screen by "show xrange".

What do you think about GPGET("xmin") et al?
Or putting the plot ranges into XMIN, XMAX, etc?

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PM