S2Polygon.initializeToUnion

Undocumented in source. Be warned that the author may not have intended to support it.
  1. void initializeToUnion(S2Polygon a, S2Polygon b)
    class S2Polygon
    void
    initializeToUnion
  2. void initializeToUnion(S2Polygon a, S2Polygon b, S2Builder.SnapFunction snap_function)

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