Re: [Gnuplot-info] keep ratio for all axis, axis in same place

[Carles P. i E. <ca...@pi...>]

Hi,

On Jan/20/2007, Lars Hoegen wrote:

> > a) I am using splot command to paint some figures. I
> > would like that gnuplot autoscale (ok, done by default)
> > but I would like that gnuplot keeps the ratio for all
> > axis. Example: if gnuplot decides that x-axis has to be
> > from -6 to -6, I want that y-axis is from -6 to 6 and
> > z-axis too. Else my figures gets with "rare" shapes
> 
> The simpest way to do this would of course be to choose the 
> ranges by hand. You may use a variable within the set 
> [xyz]range-command. Maybe your mathematical equations or 
> yoour data allows to calcutlate good borders.
> 
> As far as I could find out by studying the documentation, 
> there is no way of telling gnuplot to keep an aspect ratio 
> in 3D-plots. I had a kind of "brute force"-idea that might 

saad. I will try your method in the future, if I need it... I can
survive without it :-)

> > b) I want that x-axis, z-axis and y-axis are always
> > represented in z=0, x=0 and y=0. Any way to do it? z-axis
> > sometimes is represented in -6, is a bit confusing :-)
> 
> Your problem cant't be solved completely, since gnuplot does 
> not allow to move the z-markers from the border to the 
> axes. The nearest solution would be like follows
> 
>   set ticslevel 0   # puts z=0 to x=0,y=0
>   set zeroaxis linetype 1 # produces lines on the axes x,y
>   unset border # switches off the frame around the plot
>   set xtics axis nomirror
>   set ytics axis nomirror # puts the tics to the axes x,y
> 
> You may "simulate" an z-axis by using the set arrow command, 
> but you can't move the z-tics to this line. 

good enough!

Yes, it makes the job :-) Thanks!

-- 
Carles Pina i Estany		GPG id: 0x8CBDAE64
	http://pinux.info	Manresa - Barcelona