`CircleSegment`: Add `inner_arc` and `outer_arc`

linebender / kurbo

A Rust library for manipulating curves

Apache License 2.0

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`CircleSegment`: Add `inner_arc` and `outer_arc` #368

Closed waywardmonkeys closed 3 months ago

waywardmonkeys commented 3 months ago

Draft because:

Depends on #367, Arc::flipped for a doc comment link.
Am I right to have the inner_arc flipped from the outer_arc?
Should we add similar things for the two radial lines connecting the arcs?

waywardmonkeys commented 3 months ago

I thought it might be useful to have the line for the inner and outer chords ... but if we expose inner / outer start and end points (rather than just center + radius + angle), then we can more readily construct whatever.

waywardmonkeys commented 3 months ago

(but we could also do that from the arc ... let the arc expose start / end points or a chord)