OptionallistsOfCircles: T[][]Optionalcombination: combinationCirclesForFaceEnumOptionalunify: booleanOptionaltolerance: numberThe lists of circle wires; belts run between one list and the next.
Which pairs get a belt: allWithAll every circle of a list with every circle of the next,
inOrder circles at the same position, inOrderClosed also closes each list.
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.
Lists of circles and how to pair them for
shapes.face.createFaceFromMultipleCircleTanWireCollections, which joins circles of consecutive lists with tangent belts.