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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors: see git history
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef INKSCAPE_LIVAROT_SWEEP_EVENT_H
#define INKSCAPE_LIVAROT_SWEEP_EVENT_H
/** \file
* Intersection events.
*/
#include <2geom/point.h>
class SweepTree;
/**
* An intersection event structure to record any intersections that are
* detected (predicted) during the sweepline.
*/
class SweepEvent
{
public:
SweepTree *sweep[2]; /*!< Nodes associated with the left and right edge of the intersection. */
Geom::Point posx; /*!< Point of the intersection. */
double tl; /*!< Time value of the intersection on the left edge (tl).*/
double tr; /*!< Time value of the intersection on the right edge (tr). */
int ind; /*!< Index in the binary heap. */
SweepEvent(); // not used.
virtual ~SweepEvent(); // not used.
/**
* Initialize the sweep event.
*
* @param iLeft The left node of the intersection.
* @param iRight The right node of the intersection.
* @param iPt The intersection point.
* @param itl The time value of the intersection on the left edge.
* @param itr The time value of the intersection on the right edge.
*/
void MakeNew (SweepTree * iLeft, SweepTree * iRight, Geom::Point const &iPt,
double itl, double itr);
/// Void a SweepEvent structure.
/**
* Empty the sweep event data.
*
* Also reset event pointers of any SweepTree nodes that might point to this event.
*/
void MakeDelete ();
};
#endif /* !INKSCAPE_LIVAROT_SWEEP_EVENT_H */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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