Re: [Gnuplot-info] lines in 3D

[WesM <wes...@gm...>]

Thanks again Thomas

Can the arrow command read its head and tail coordinates from a file? If so
would you show me
how to do that.



Thomas Sefzick wrote:
> 
> you may add arrows without heads:
> 
> set xrange [0:pi]
> set yrange [0:pi]
> set samples 10
> set arrow 1 from 0.5,0.5,0.5 to 2.5,0.5,0.5 nohead front
> set arrow 2 from 2.5,0.5,0.5 to 2.5,2.5,0.5 nohead front
> set arrow 3 from 2.5,2.5,0.5 to 0.5,2.5,0.5 nohead
> set arrow 4 from 0.5,2.5,0.5 to 0.5,0.5,0.5 nohead
> splot sin(x)*sin(y) with pm3d
> 
> 
> WesM wrote:
>> 
>> Hi
>> 
>> I have created a 3D surface plot of some data contained in a file. I
>> would like to add
>> to the plot a rectangle in 3d. How can I add lines (or better yet a
>> rectangle) to 3D
>> plots?
>> 
> 
> 

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