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#ifndef slic3r_PolylineCollection_hpp_
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#define slic3r_PolylineCollection_hpp_
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#include "Polyline.hpp"
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class PolylineCollection
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void chained_path(PolylineCollection* retval, bool no_reverse = false) const;
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void chained_path_from(Point start_near, PolylineCollection* retval, bool no_reverse = false) const;
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Point leftmost_point() const;