Optionalcircles: T[]Optionalcombination: combinationCirclesForFaceEnumOptionalunify: booleanOptionaltolerance: numberThe circle wires to join, each a single edge.
Which pairs get a belt: allWithAll every circle with every other, inOrder neighbors in
the list, inOrderClosed also the last with the first.
When true, the belt faces are fused into one shape; when false they come back as a compound, which is faster.
How close a line must come to a circle to count as touching it, in model units.
Circles in one plane and how to pair them for
shapes.face.createFaceFromMultipleCircleTanWires, which joins the pairs with tangent belts.