Op 6-3-2023 om 12:44 schreef Bald Eagle:
> Thomas de Groot <tho### [at] degrootorg> wrote:
> 
>> I can try to slice it using Silo. Just to see how it looks inside...
> 
> I don't see why not.
> 
OK. So, I started fresh from the original STL file. Silo can import it, 
but it is too heavy for the program to cut it up. I did however a couple 
of basic transformations to align the mesh to the world axis.

Answering here your question below: I could load the STL into MeshLab 
and could easily simplify the mesh and convert it too quads within 
minutes. I am not too familiar with MeshLab but I guess there are a lot 
possibilities there that can be applied. I shall investigate further.

> Ben states that they were unable to scan the interior of the vessel, due to the
> limitations of the structured light scanning instrumentation.
> 
> They also play around a bit with the mesh and some primitives using Blender.
> 
> https://www.youtube.com/watch?v=SQMSGkZIfao
> 
> One very interesting point that brought up is the seemingly anomalous lack of
> accuracy in the lug handle holes.   Ben points out that, given there are a large
> number of examples of vessels that have no holes whatsoever, that the vase may
> have been manufactured without holes, and someone (less skilled) added the holes
> later.
> 
I find this a bit strange but that may be true. The vases were made as 
funerary furniture as far as I know and perhaps - depending on your 
wealth - the objects were more or less finished? In the digs all kinds 
of (un)finished states were found.

> Apparently there has been some small bit of controversy between the two main
> post-metrology analysts regarding reference points, proportions, and what is
> real regarding various dimensions lines and ratios.
> 
> It might be interesting to develop a parameterized vessel composed entirely of
> primitives as a sort of playground, that can them be exported as a mesh for
> comparison in CloudCompare, Polyworks, or other more sophisticated software.
> 
yes.

> Has anyone opened it in MeshLab to see what sorts of measurement and analysis
> tools are available there?
> 
See above.

I attach a few screenshots from the STL in Silo. I had not fully 
realised this but the whole base has not been scanned and there is that 
mess of the inside well-visible here.

-- 
Thomas

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