Re: [Gnuplot-info] how to make a 3D plot shown as in a cube?

[Jon <dev...@gm...>]

On Sun, Oct 11, 2015 at 11:31 AM, sfeam <sf...@us...> wrote:

> On Sunday, 11 October 2015 11:14:31 AM Jon wrote:
>
> > Thanks for your response. I did have points on x axis twice that of y
> axis,
>
> > but x,y range are the same, both from -1 to 1.
>
>
>
> So if you had filled both x and y it would have been a square, right?
>
> Isn't that what you wanted?
>

Yes, this is what I would like to achieve. If you think you can achieve the
effect I am after, could you please send back your plot based on my input
data?


>
> > Would set view care about how many points along each axis or it only
> cares
>
> > about the values to be plotted?
>
>
>
> Neither. "set view" cares about the coordinate system itself,
>
> regardless of what points you do or do not plot.
>
>
>
> "set view equal xyz" gives you an orthogonal coordinate system so
>
> that a line segment from [a,b,c] to [a,b,c+1] has the same apparent
>
> length as one from [d,e,f] to [d+1,e,f] and so on.
>
> > BTW, why would the following two commands
>
> >
>
> > set term x11 size 10,600
>
> >
>
> > set term x11 size 600,600
>
> >
>
> > have no control on the output on the screen?
>
> >
>
> > Can anybody comment on that?
>
>
>
> It controls the size of the next x11 plot window you open.
>
> It does not change what is already on the screen.
>

I did replot after changing these settings, but don't see any change, which
surprises me.

Thanks for further help, my gnuplot version is 4.2 patch 6, is this too old
a version?

Sincerely,
Jon

>
>
> Ethan
>
>
>
> > Sincerely,
>
> > Jon
>
> >
>
> >
>
> > On Thu, Oct 8, 2015 at 12:20 PM, sfeam <sf...@us...>
> wrote:
>
> >
>
> > > On Thursday, 08 October 2015 01:33:36 AM Jon wrote:
>
> > >
>
> > > > Thanks, I tried to plot the data attached with the following
>
> > >
>
> > > >
>
> > >
>
> > > > set view equal xyz
>
> > >
>
> > > > set view 0,0
>
> > >
>
> > > > splot 'aaa' u 1:2:3
>
> > >
>
> > > >
>
> > >
>
> > > > but cannot get a square shape on the xy plane, any cure for it?
>
> > >
>
> > >
>
> > >
>
> > > But you didn't draw a square.
>
> > >
>
> > > As is clearly visible in the figure you attached, you drew a
>
> > >
>
> > > rectangle that is 2 units by 1 unit.
>
> > >
>
> > >
>
> > >
>
> > > The "set view equal xyz" command makes sure that the unit length
>
> > >
>
> > > is the same on all axes. I.e. the aspect ratio is 1.
>
> > >
>
> > > But it's still up to you to draw something with the right dimensions.
>
> > >
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> > >
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> > >
>
> > > Ethan
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> > >
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> > >
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> > > >
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> > >
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> > > > Both data and what I got is attached.
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> > >
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> > > >
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> > >
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> > > > On Tue, Oct 6, 2015 at 10:06 AM, sfeam <eam...@gm...> wrote:
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> > >
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> > > >
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> > >
>
> > > > > On Tuesday, 06 October 2015 09:51:44 AM Jon wrote:
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> > >
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> > > > >
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> > >
>
> > > > > > Hi Guys,
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> > >
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> > > > >
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> > >
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> > > > > >
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> > >
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> > > > >
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> > >
>
> > > > > > I have been fighting with it for some time and would like to
> know a
>
> > >
>
> > > > >
>
> > >
>
> > > > > > solution. I want the 3D plot to be shown with a cube with actual
>
> > > equal
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> > >
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> > > > >
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> > >
>
> > > > > > length of x,y,z.
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> > >
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> > > > >
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> > >
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> > > > >
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> > > > >
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> > > > > set view equal xyz
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