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/*
* Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
* http://code.google.com/p/poly2tri/
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Poly2Tri nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ADVANCED_FRONT_H
#define ADVANCED_FRONT_H
#include "../common/shapes.h"
namespace p2t {
struct Node;
// Advancing front node
struct Node {
Point* point;
Triangle* triangle;
Node* next;
Node* prev;
double value;
Node(Point& p) : point(&p), triangle(NULL), next(NULL), prev(NULL), value(p.x)
{
}
Node(Point& p, Triangle& t) : point(&p), triangle(&t), next(NULL), prev(NULL), value(p.x)
{
}
};
// Advancing front
class AdvancingFront {
public:
AdvancingFront(Node& head, Node& tail);
// Destructor
~AdvancingFront();
Node* head();
void set_head(Node* node);
Node* tail();
void set_tail(Node* node);
Node* search();
void set_search(Node* node);
/// Locate insertion point along advancing front
Node* LocateNode(const double& x);
Node* LocatePoint(const Point* point);
private:
Node* head_, *tail_, *search_node_;
Node* FindSearchNode(const double& x);
};
inline Node* AdvancingFront::head()
{
return head_;
}
inline void AdvancingFront::set_head(Node* node)
{
head_ = node;
}
inline Node* AdvancingFront::tail()
{
return tail_;
}
inline void AdvancingFront::set_tail(Node* node)
{
tail_ = node;
}
inline Node* AdvancingFront::search()
{
return search_node_;
}
inline void AdvancingFront::set_search(Node* node)
{
search_node_ = node;
}
}
#endif
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