Arc.hpp

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// Copyright (c) by Wayne C. Gramlich.  All rights reserved.

#if !defined(ARC_H_INCLUDED)
#define ARC_H_INCLUDED 1


#include "File.hpp"
#include "Map.hpp"
#include "SVG.hpp"


class Tag;

class Arc {
  public:
    double angle;

    double distance;

    Tag * from_tag;

    double from_twist;

    double goodness;

    bool in_tree;

    Tag * to_tag;

    double to_twist;

    unsigned int visit;

  public:
    Arc();

    Arc(Tag *from_tag, double from_twist, double distance, Tag *to_tag,
        double to_twist, double goodness);

    void svg_write(SVG *svg);
    void update(double distance, double angle, double twist, double goodness);
    void write(File out_file);

    // static comparisons for sorting
    static bool equal(Arc *arc1, Arc *arc2);
    static bool less(Arc *arc1, Arc *arc2);
    static bool distance_less(Arc *arc1, Arc *arc2);

    static Arc * read(File out_file, Map map);
};

// *Arc* routines:


#endif // !defined(ARC_H_INCLUDED)