The wire the zig-zag starts on.
The wire the zig-zag bounces to.
How many bounces to draw, per edge with zigZagsPerEdge or over the whole wire without; one
bounce is two segments meeting at a corner.
When true, the zig-zag starts on the second wire instead of the first.
When true, the bounce points are spaced by length along the wires; when false they follow the curves' parameters, which can be uneven.
When true, each edge of the wires gets nrZigZags bounces and the wires need matching edge
counts; when false the count covers the whole wire.
Two wires and a bounce count for
shapes.wire.createZigZagBetweenTwoWires, which draws a polyline bouncing between them.