Re: [Gnuplot-info] How to plot directly in unit of pixels by gnuplot?

[Thomas S. <t.s...@fz...>]

use the screen coordinates when defining objects:

set term gif size 640,480
set obj 1 rect from screen 100./640.,20./480. to screen 200./640.,30./480.
fc palette cb 3
set out 'plot.gif'
plot sin(x)
set out


Fayer Michael wrote:
> 
> Expect for canvas size, gnuplot uses relative unit to plot. Now I want
> to draw directly in unit of pixels. For example, I want something like:
>   set obj rect from 100,20 to 200,30 fc palette cb 3
> 
> where 100,20 and 200,30 are in pixel.
> 
> I set xrange/yrange to something like 1:640 and 1:480, and set all
> margins to 0. However, the results were still not exactly what I want.
> And it's a dirty hack. Anyone knows a clean one?
> 
> I noticed low-level Perl package Term::Gnuplot, but it's not convenient
> for high-level plotting.
> 
> Fayer
> 
> 
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