RoadSegmentDescription.h

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// Copyright (c) 2017 Computer Vision Center (CVC) at the Universitat Autonoma
// de Barcelona (UAB).
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
 
#pragma once
 
#include "GraphTypes.h"
#include "Util/NonCopyable.h"
 
#include <vector>
 
namespace MapGen {
 
  class RoadSegmentDescription : private NonCopyable
  {
  public:
 
    void Add(const GraphHalfEdge &Edge) {
      if (Angle == nullptr) {
        Angle = MakeUnique<float>(Edge.Angle);
      } else if (*Angle != Edge.Angle) { /// @todo Use a scale.
        Angle = nullptr;
      }
      _vect.emplace_back(&Edge);
    }
 
    const GraphHalfEdge &operator[](size_t i) const {
      return *_vect[i];
    }
 
    size_t Size() const {
      return _vect.size();
    }
 
    bool IsStraight() const {
      return Angle.IsValid();
    }
 
    /// @return nullptr if the road segment is not straight.
    const float *GetAngle() const {
      return Angle.Get();
    }
 
  private:
 
    TUniquePtr<float> Angle = nullptr;
 
    std::vector<const GraphHalfEdge *> _vect;
  };
 
} // namespace MapGen