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Re: Plotting a function of 3 variables ?


From: Ismael Diego Nunez-Riboni
Subject: Re: Plotting a function of 3 variables ?
Date: Wed, 25 Apr 2012 12:27:44 +0200

> I'm trying to visualize a function of 3 variables v = f(x,y,z). So I'm 
> wondering is there any appropriate plotting function in Octave? What I 
> am thinking of is a 3-D lattice of markers with the colour of the marker 
> indicating the function value, like a 3-D scatter plot with each point 
> being a different coloured sphere with the colour indicating the 
> function's magnitude at that point. The spheres would be small relative 
> to the distance between adjacent spheres (the x,y,z coordinates to be 
> plotted will be uniformly spaced) so that the figure could be rotated 
> and viewed from all angles while still being able to see any patterns or 
> trends through the entire lattice. Is there any command to achieve 
> something like this ?

Try first:

plot3 (x,y,z)

Otherwise:

surf (x,y,z)
-- 
Ismael Núñez-Riboni
Hamburg
Deutschland

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