surfC with 4 vectors

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Kevin
Kevin 2011-9-28
Hello, Quick question : is it possible to make surfc works with vectors ? I have 4 vectors (x,y,z & c for the color) of the same length (1 point per quadruple xyzc ) but I don't understand how to turn them into matrix as surfc asks me. The xyz points are uniformly spaced. Any idea ?

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Grzegorz Knor
Grzegorz Knor 2011-9-28
Use reshape function, or interpolate the data:
http://www.mathworks.com/help/techdoc/ref/triscatteredinterp.html
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Grzegorz Knor
Grzegorz Knor 2011-9-28
Matrices can be any size, but you need to know it.
[x,y] = meshgrid(-2:.1:2, -2:.2:2);
x = x(:);
y = y(:);
z = x.*exp(-x.^2 - y.^2);
c = abs(z);
surfc(reshape(x,21,41),reshape(y,21,41),reshape(z,21,41),reshape(c,21,41))
Kevin
Kevin 2011-9-28
It works thanks but I had to add a value because the lenght of my data was a prime number...

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