111 lines
2.3 KiB
C++
111 lines
2.3 KiB
C++
/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2020 Paul Ramsey <pramsey@cleverelephant.ca>
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/geom/Coordinate.h>
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#include <geos/export.h>
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#include <string>
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#include <cassert>
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namespace geos {
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namespace edgegraph { // geos.edgegraph
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class GEOS_DLL MarkHalfEdge : public HalfEdge {
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private:
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bool m_isMarked;
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public:
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/**
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* Creates a new marked edge.
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*
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* @param orig the coordinate of the edge origin
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*/
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MarkHalfEdge(const geom::CoordinateXYZM& p_orig) :
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HalfEdge(p_orig),
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m_isMarked(false)
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{};
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/**
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* Tests whether the given edge is marked.
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*
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* @param e the edge to test
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* @return true if the edge is marked
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*/
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static bool isMarked(HalfEdge* e);
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/**
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* Marks the given edge.
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*
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* @param e the edge to mark
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*/
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static void mark(HalfEdge* e);
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/**
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* Sets the mark for the given edge to a boolean value.
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*
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* @param e the edge to set
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* @param isMarked the mark value
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*/
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static void setMark(HalfEdge* e, bool isMarked);
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/**
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* Sets the mark for the given edge pair to a boolean value.
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*
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* @param e an edge of the pair to update
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* @param isMarked the mark value to set
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*/
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static void setMarkBoth(HalfEdge* e, bool isMarked);
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/**
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* Marks the edges in a pair.
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*
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* @param e an edge of the pair to mark
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*/
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static void markBoth(HalfEdge* e);
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/**
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* Tests whether this edge is marked.
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*
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* @return true if this edge is marked
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*/
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bool isMarked() const { return m_isMarked; }
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/**
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* Marks this edge.
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*
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*/
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void mark() { m_isMarked = true; }
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/**
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* Sets the value of the mark on this edge.
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*
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* @param isMarked the mark value to set
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*/
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void setMark(bool p_isMarked) { m_isMarked = p_isMarked; }
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};
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} // namespace geos.edgegraph
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} // namespace geos
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