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That should be (# of triangles sharing a vertex) times as many

entries at each vertex. My bad.

-Justin :)

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Justin Kidder, Research Asst. | Automation and Robotics Laboratory

jrkst34+@pitt.edu | University of Pittsburgh

Home page: http://www.pitt.edu/~jrkst34

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"Nothing is fool-proof to a sufficiently talented fool"

It's also important to note that if you are choosing the vertex locations,

some data reduction should probably be done--coming from STL, you have 3

entries at each vertex. A good point cloud would not have these

redundancies. Assuming that your STL file has no errors, it would not be

a problem to find the repeats, but if you have accuracy errors in your

vertex locations, you may need a more robust method of detecting the

repeats.

-Justin

On Tue, 13 Jan 1998, Delft Spline Systems wrote:

*> >When creating a point cloud file from a STL file, are the points the center of
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*> >the triangles or the three coordinates ?
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*> >
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*>
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*> Basically you are of course absolutely free to create any type of point
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*> cloud file from your STL: it may even contain many points on the
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*> surface of each separate triangle to have a sufficiently dense point cloud.
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*>
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*> In case the density is no problem, than the best apporoximation
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*> of the original CAD model is given by the three vertices of every
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*> triangle (of course three coordinates per vertex). These points are
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*> on the original CAD-surface, while the flat triangle inbetween is just
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*> an approximation.
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*>
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