GeoConvHelper.h

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/****************************************************************************/
// static methods for processing the coordinates conversion for the current net
/****************************************************************************/
// 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 GeoConvHelper_h
#define GeoConvHelper_h


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

#include <map>
#include <string>
#include <utils/geom/Position.h>
#include <utils/geom/Boundary.h>

#ifdef HAVE_PROJ
#include <proj_api.h>
#endif


// ===========================================================================
// class declarations
// ===========================================================================
class OptionsCont;


// ===========================================================================
// class definitions
// ===========================================================================
class GeoConvHelper {
public:

    GeoConvHelper(OptionsCont& oc);

    GeoConvHelper(const std::string& proj, const Position& offset,
                  const Boundary& orig, const Boundary& conv, int shift=0, bool inverse=false, bool baseFound=false);


    ~GeoConvHelper();


    static void addProjectionOptions(OptionsCont& oc);

    static bool init(OptionsCont& oc);

    static void init(const std::string& proj,
                     const Position& offset,
                     const Boundary& orig,
                     const Boundary& conv);

    static GeoConvHelper& getDefaultInstance() {
        return myDefault;
    }


    static const GeoConvHelper& getOutputInstance();

    static void setLoaded(const GeoConvHelper& loaded) {
        myLoaded = loaded;
        myNumLoaded++;
    }

    void cartesian2geo(Position& cartesian);

    bool x2cartesian(Position& from, bool includeInBoundary=true);

    bool usingGeoProjection() const;

    bool usingInverseGeoProjection() const;

    void moveConvertedBy(SUMOReal x, SUMOReal y);

    const Boundary& getOrigBoundary() const;

    const Boundary& getConvBoundary() const;

    const Position getOffset() const;

    const Position getOffsetBase() const;

    const std::string& getProjString() const;

private:
    enum ProjectionMethod {
        NONE,
        SIMPLE,
        UTM,
        DHDN,
        PROJ
    };

    std::string myProjString;

#ifdef HAVE_PROJ

    projPJ myProjection;
#endif

    Position myOffset;

    double myGeoScale;

    ProjectionMethod myProjectionMethod;

    bool myUseInverseProjection;

    bool myBaseFound;

    double myBaseX, myBaseY;

    Boundary myOrigBoundary;

    Boundary myConvBoundary;

#ifdef HAVE_PROJ

    void initProjection(double x, double y);
#endif

    static GeoConvHelper myDefault;

    static GeoConvHelper myLoaded;

    static GeoConvHelper myOutput;

    static int myNumLoaded;

    GeoConvHelper& operator=(const GeoConvHelper&);

    GeoConvHelper(const GeoConvHelper&);

};


#endif

/****************************************************************************/