Boundary.h

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// A class that stores a 2D geometrical boundary
/****************************************************************************/
// SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
// Copyright (C) 2001-2011 DLR (http://www.dlr.de/) and contributors
/****************************************************************************/
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation; either version 2 of the License, or
//   (at your option) any later version.
//
/****************************************************************************/
#ifndef Boundary_h
#define Boundary_h


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#include <iostream>
#include <utility>
#include "AbstractPoly.h"
#include "Position.h"


// ===========================================================================
// class definitions
// ===========================================================================
class Boundary
        : public AbstractPoly {
public:
    Boundary();

    Boundary(SUMOReal x1, SUMOReal y1, SUMOReal x2, SUMOReal y2);

    ~Boundary();

    void reset();

    void add(SUMOReal x, SUMOReal y);

    void add(const Position& p);

    void add(const Boundary& p);

    Position getCenter() const;

    SUMOReal xmin() const;

    SUMOReal xmax() const;

    SUMOReal ymin() const;

    SUMOReal ymax() const;

    SUMOReal getWidth() const;

    SUMOReal getHeight() const;

    bool around(const Position& p, SUMOReal offset=0) const;

    bool overlapsWith(const AbstractPoly& poly, SUMOReal offset=0) const;

    bool partialWithin(const AbstractPoly& poly, SUMOReal offset=0) const;

    bool crosses(const Position& p1, const Position& p2) const;


    Boundary& grow(SUMOReal by);

    void growWidth(SUMOReal by);

    void growHeight(SUMOReal by);

    void flipY();

    void set(SUMOReal xmin, SUMOReal ymin, SUMOReal xmax, SUMOReal ymax);

    void moveby(SUMOReal x, SUMOReal y);

    friend std::ostream& operator<<(std::ostream& os, const Boundary& b);

private:
    SUMOReal myXmin,myXmax, myYmin, myYmax;

    bool myWasInitialised;

};


#endif

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