Fw: How to generate a graph image of specific size without labels?

[Anthony T. <A.T...@gr...>]

| Date: Mon, 22 Mar 2010 13:50:29 +1000
| To: gnu...@li...
| Subject: How to generate a graph image of specific size without labels?
| 
| How to generate a graph image of specific size without labels?
| 
| that is I what the 'border' of the plot to be the 'border' of the
| final image that is of specific size.  It is vital for including
| the plot results into other image mosaics.
| 

With suggestions from   Daniel J Sebald  I am posting the method
which I used with gnuplot v4.2.3-1 under Fedora 10.

The script it was part of, broke with a OS version upgrade to 
gnuplot v4.2.6-1  under fedora 12


   set terminal png size 340,210
   unset key
   set format ""
   set xtics ( 75, 150, 225 ) scale 2
   set ytics ( 0.25, 0.5, 0.75 ) scale 2
   set xrange [0:300]
   set yrange [0:1]

The 'size' was designed to actually generate a 'graph' that was
exactly 300x184 pixels in size after it is 'autocroped' using
ImageMagick.

Now both versions generate a image 340x210 pixels but the
graph area which was 300x184 pixels
is now under gnuplot v4.2.6-1  producing   292x171  pixels

In another example  a gnuplot "png size" of 
was producing     150x89  pixel graph
is now producing  142x76


This naturally breaks my scripts!!!

NOTE that I am not generating any title, keys, or other output
just the graph itself.



  Anthony Thyssen ( System Programmer )    <A.T...@gr...>
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   Anthony's Castle     http://www.cit.griffith.edu.au/~anthony/