BoxEdge.h

/*
Copyright (c) 2010 University of Illinois
All rights reserved.
 
Developed by:           DeNovo group, Graphis@Illinois
University of Illinois
http://denovo.cs.illinois.edu
http://graphics.cs.illinois.edu
 
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal with the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
 
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimers.
 
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimers
in the documentation and/or other materials provided with the
distribution.
 
* Neither the names of DeNovo group, Graphics@Illinois,
University of Illinois, nor the names of its contributors may be used to
endorse or promote products derived from this Software without specific
prior written permission.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR
ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
*/
 
#pragma once
 
#include <iostream>
namespace AtomsUtils
{
    class BoxEdge
    {
    public:
        BoxEdge() {}
 
        BoxEdge(float f, unsigned int t, bool edgeType, char axis) :
            t(f), triangleIndex(t), edgeType(edgeType), axis(axis) {}
 
        bool operator<(const BoxEdge &RHS) const
        {
            if (this->t == RHS.t)
            {
                if (this->triangleIndex != RHS.triangleIndex)
                {
                    return this->triangleIndex < RHS.triangleIndex;
                }
                else // at this point we have two edges with equal t and index
                {
                    // resolve by comparing edge type
                    return (int)(this->edgeType) < (int)(RHS.edgeType);
                }
            }
            else
            {
                return this->t < RHS.t;
            }
        }
 
    public:
 
        float t;
 
        unsigned int triangleIndex;
 
        bool edgeType;
 
        char axis;
    };
}
 
namespace std {
    template<>
    class less<AtomsUtils::BoxEdge> 
    {
    public:
        bool operator()(const AtomsUtils::BoxEdge& x, const AtomsUtils::BoxEdge& y) const 
        {
            if (x.t == y.t) 
            {
                if (x.triangleIndex != y.triangleIndex) 
                {
                    return x.triangleIndex < y.triangleIndex;
                }
                else
                {
                    return (int)x.edgeType < (int)y.edgeType;
                }
            }
            else 
            {
                return x.t < y.t;
            }
        }
 
        bool operator()(const AtomsUtils::BoxEdge* x, const AtomsUtils::BoxEdge* y) const 
        {
            if (x->t == y->t) 
            {
                if (x->triangleIndex != y->triangleIndex) 
                {
                    return x->triangleIndex < y->triangleIndex;
                }
                else 
                {
                    return (int)x->edgeType < (int)y->edgeType;
                }
            }
            else 
            {
                return x->t < y->t;
            }
        }
  };
}