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Thread Subject: plot a surface bounding a set of points in 3-D?

Subject: plot a surface bounding a set of points in 3-D?

From: Ben

Date: 25 Jun, 2009 21:12:40

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Hi,

I have a 3-D scatter plot of points (each point has an x,y,z
coordinate on a regularly spaced grid). The points are organized into
clumps (as opposed to be randomly scattered). Rather than using plot3
to visualize the clumps as collections of points, is it possible to
plot a smooth surface that bounds these points instead?

I've tried the method in "doc surf", but it creates more like a
"height map" with the Z-axis, rather than bounding surfaces.

Thanks,

-Ben

Subject: plot a surface bounding a set of points in 3-D?

From: Luigi Giaccari

Date: 30 Jun, 2009 11:05:03

Message: 2 of 2

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Ben <jbenjam@gmail.com> wrote in message <e9f68a81-9fbf-4720-81ac-58892770d35f@g23g2000vbr.googlegroups.com>...
>
> Hi,
>
> I have a 3-D scatter plot of points (each point has an x,y,z
> coordinate on a regularly spaced grid). The points are organized into
> clumps (as opposed to be randomly scattered). Rather than using plot3
> to visualize the clumps as collections of points, is it possible to
> plot a smooth surface that bounds these points instead?
>
> I've tried the method in "doc surf", but it creates more like a
> "height map" with the Z-axis, rather than bounding surfaces.
>
> Thanks,
>
> -Ben

http://giaccariluigi.altervista.org/blog/

http://www.mathworks.com/matlabcentral/fileexchange/22185

http://www.mathworks.com/matlabcentral/fileexchange/22595

http://www.mathworks.com/matlabcentral/fileexchange/23447

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plot surface	Sprinceana	1 Jul, 2009 11:18:05

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