quickLength Method
Return an approximate (but easy to compute) arc length. The estimate is:
- Form 8 chords on full circle, proportionally fewer for partials (but 2 extras if less than half circle).
- Sum the chord lengths.
- For a circle, we know this crude approximation has to be increased by a factor (theta/(2*sin(theta/2))).
- Apply that factor.
- Experiments confirm that this is within 3 percent for a variety of eccentricities and arc sweeps.
quickLength(): number
Returns - number
Defined in
- curve/Arc3d.ts Line 485
Last Updated: 25 April, 2024
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