Program Listing for File face_definition.h

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/********************************************************************************
 *                                                                              *
 * This file is part of IfcOpenShell.                                           *
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 * IfcOpenShell is free software: you can redistribute it and/or modify         *
 * it under the terms of the Lesser GNU General Public License as published by  *
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 * (at your option) any later version.                                          *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
 * Lesser GNU General Public License for more details.                          *
 *                                                                              *
 * You should have received a copy of the Lesser GNU General Public License     *
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#ifndef FACE_DEFINITION_H
#define FACE_DEFINITION_H

#include <TopoDS_Wire.hxx>
#include <Geom_Surface.hxx>

#include <map>
#include <vector>

namespace ifcopenshell::geom {
    namespace util {

        /* Returns whether wire conforms to a polyhedron, i.e. only edges with linear curves*/
        bool is_polyhedron(const TopoDS_Wire& wire);

        /* A temporary structure to store the intermediate data for the face conversion */
        class face_definition {
        private:
            Handle(Geom_Surface) surface_;
            std::vector<TopoDS_Wire> wires_;
            bool all_outer_;
        public:
            face_definition() : surface_(), all_outer_(false) {}

            typedef std::vector<TopoDS_Wire>::const_iterator wire_it;

            bool& all_outer() {
                return all_outer_;
            }

            bool all_outer() const {
                return all_outer_;
            }

            Handle(Geom_Surface)& surface() {
                return surface_;
            }

            const Handle(Geom_Surface)& surface() const {
                return surface_;
            }

            std::vector<TopoDS_Wire>& wires() {
                return wires_;
            }

            const TopoDS_Wire& outer_wire() const {
                return wires_.front();
            }

            std::pair<wire_it, wire_it> inner_wires() const {
                return { wires_.begin() + 1, wires_.end() };
            }
        };

    }
}

#endif