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Re: 3d plot.... turn 3d data into solid (i.e. plot boundary)

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Am 13.12.2015 um 20:32 schrieb michael.o.rubinstein@gmail.com:

> I have a collection of 3 dimensional points. Most of them are
> interior to some complicated set. I would like to have gnuplot draw
> just the boundary, assuming some level of smoothness for the
> boundary, so that the interior points are not shown.

Sorry, but, as specified here, that job would be impossible, because the 
result is under-defined.

A cloud of points in 3D does not actually possess a boundary that 
gnuplot (or any program, for that matter) could possibly determine all 
by itself.  Actually there is one surface which can be easily and 
unambiguously defined for a cloud of points: the convex hull; but it's 
unclear if that's the one you want.

Either way this is not a plotting program's job.  You need a 3D data 
processing tool or toolkit, and probably a whole lot of time to work 
with it.

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3d plot.... turn 3d data into solid (i.e. plot boundary) michael.o.rubinstein@gmail.com - 2015-12-13 11:32 -0800
  Re: 3d plot.... turn 3d data into solid (i.e. plot boundary) Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2015-12-13 22:47 +0100
    Re: 3d plot.... turn 3d data into solid (i.e. plot boundary) Dale <dale@dalekelly.org> - 2015-12-15 16:42 -0500

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