65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
|
/**********************************************************************
|
||
|
|
*
|
||
|
|
* GEOS - Geometry Engine Open Source
|
||
|
|
* http://geos.osgeo.org
|
||
|
|
*
|
||
|
|
* Copyright (C) 2019 Daniel Baston
|
||
|
|
*
|
||
|
|
* This is free software; you can redistribute and/or modify it under
|
||
|
|
* the terms of the GNU Lesser General Licence as published
|
||
|
|
* by the Free Software Foundation.
|
||
|
|
* See the COPYING file for more information.
|
||
|
|
*
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <geos/triangulate/quadedge/QuadEdge.h>
|
||
|
|
|
||
|
|
|
||
|
|
namespace geos {
|
||
|
|
namespace triangulate {
|
||
|
|
namespace quadedge {
|
||
|
|
|
||
|
|
class GEOS_DLL QuadEdgeQuartet {
|
||
|
|
|
||
|
|
public:
|
||
|
|
QuadEdgeQuartet() : e{{QuadEdge(0), QuadEdge(1), QuadEdge(2), QuadEdge(3)}} {
|
||
|
|
e[0].next = &(e[0]);
|
||
|
|
e[1].next = &(e[3]);
|
||
|
|
e[2].next = &(e[2]);
|
||
|
|
e[3].next = &(e[1]);
|
||
|
|
};
|
||
|
|
|
||
|
|
static QuadEdge& makeEdge(const Vertex& o, const Vertex & d, std::deque<QuadEdgeQuartet> & edges) {
|
||
|
|
edges.emplace_back();
|
||
|
|
auto& qe = edges.back();
|
||
|
|
qe.base().setOrig(o);
|
||
|
|
qe.base().setDest(d);
|
||
|
|
|
||
|
|
return qe.base();
|
||
|
|
}
|
||
|
|
|
||
|
|
QuadEdge& base() {
|
||
|
|
return e[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
const QuadEdge& base() const {
|
||
|
|
return e[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
void setVisited(bool status) {
|
||
|
|
for (auto& edge : e) {
|
||
|
|
edge.setVisited(status);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
std::array<QuadEdge, 4> e;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|