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Op 27-2-2023 om 03:22 schreef Bald Eagle:
> "Bald Eagle" <cre### [at] netscape net> wrote:
>
> Analysis of the provided mesh is a work in progress.
> All measurements are in the Imperial inch system as stated by the metrologists
> Alex Dunn and Nick Sierra in the video.
> Therefore all <x, y, z? vertex coordinates are in inches as well.
> > The original mesh is roughly center-of-mass with the top pointing in
the -z
> direction.
> Height is 4.72 inches
> Radius of body is 1.67 inches
>
Very good.
I did my transformations (on the original converted OBJ files) in
Poseray, centering and then rotating the vase, and dropping it to y=0,
/before/ exporting to POV-Ray.
> Still working on establishing a center axis and radius for the lug handles.
> The measured data points only extend so far beyond the surface, making the use
> of trace {} difficult.
>
In my studio set-up I used trace {} to put the vase on the 'pedestal'.
The 'base' of the vase effectively is situated at y=0 in the geometry file.
//Bounding Box....... from x,y,z=(-1.8839052,0,-1.7086791)
// to x,y,z=(1.8823464,4.72023337158,1.6314062)
// size dx,dy,dz=(3.7662516,4.72023337158,3.3400853)
// center
x,y,z=(-0.000779399999999986,2.36011668579,-0.0386364499999997)
// diagonal 6.90082777701024
And the same from the 'optimized' version (note that for some reason,
the size is much larger. yesbird?):
//Bounding Box....... from
x,y,z=(-14.3452792176383,-3.5527136788005E-15,-12.7048841803871)
// to
x,y,z=(14.3585772287516,35.890494,12.6954582633151)
// size dx,dy,dz=(28.70385644639,35.890494,25.4003424437023)
// center
x,y,z=(0.00664900555663106,17.945247,-0.00471295853600395)
// diagonal 52.5092023431736
> Once that is established, next would be the
> best-fit sphere center and radius for the vase body
> best-fit sphere center and radius for the vase lip bottom
> best-fit cone and radii for the vase bottom
>
Ok.
--
Thomas
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