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On 2020-08-31 1:22 PM (-4), Cousin Ricky wrote:
>
> To get an SVG style quadratic curve, you would need to use
> SSWP_BEZIER_SPLINE, and clone the middle control point:
>
> SphereSweep_Approx
> ( SSWP_BEZIER_SPLINE,
> array { P1, P2, P2, P3 },
> array { Line, Line, Line, Line}, 100, 0
> )
That is wrong! Something didn't look right about the curve, so I went
back and double-checked the Bézier theory. The correct solution is this:
SphereSweep_Approx
( SSWP_BEZIER_SPLINE,
array { P1, P2 * 2/3 + P1 / 3, P2 * 2/3 + P3 / 3, P3 },
array { Line, Line, Line, Line}, 100, 0
)
I will post an example illustration in p.b.i.
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