I was a bit confused about gnuplot aspect controls:
Are the following constructs the same:
Construct 1: set size ratio -1
Construct 2: set size ratio 1; set xrange [0:constant]; set yrange
[0:constant]
Will each case result in a plot that is square and a person can actually
get a printout and compare lengths on each axes to be the same (I use the
postscript terminal). Or might construct-1 possibly result in a
"rectangular" plot BUT with lengths of units being the same on each axes
(in case the natural variation of my data was more on one axes than the
other). Does this make sense?
Also, the manual says that the ratio and square specs have no control on
3d
plots. But I often use splot to get a 2d plot with a color-mapped
isosurface corressponding to the z values. How can I control the aspects
and real lengths on these plots?
Finally, a postscript is "hardcopy". So I guess this format has an innate
sense of size in physical terms (centimeters, inches whatever)
But if I used, say, a jpeg, gif or bmp output aren't these formats
natively
based on "pixels". Are my gnuplot-aspects, then, "pixel-square" or "real-
size-square". Shouldn't the dot-pitch and aspect of my display-device
enter
the picture somewhere. Does gnuplot compensate for this or the jpeg
viewer?
Or neither.
--
Rahul
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