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Matlab simplices and alphashapes

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Matlab simplices and alphashapes

I am an engineer and am definitely out of my depth with a problem I'm trying to solve on Matlab. I have a 3 dimensional cloud of data which I am trying to encapsulate with a concave hull. I am using the alphavol code from the mathworks website to achieve this, but I am trying to create a method which will produce the best concave hull, whilst still including every data point.

A delaunayn tesselation of the data set is performed and a 288x4 array is outputted; this I believe is a set of simplices detailing the location of the panels which make up the 3D alphashape.

What I would like to know is whether it is possible to determine whether these simplices join together and as such be able to determine the number of individual 3D alphashapes that have been applied to the data set.

Please let me know if this doesn't make any sense and I'll try to explain it again!


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