Way.h

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#ifndef OSMSCOUT_WAY_H
#define OSMSCOUT_WAY_H
 
/*
  This source is part of the libosmscout library
  Copyright (C) 2009  Tim Teulings
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/
 
#include <memory>
 
#include <osmscout/GeoCoord.h>
#include <osmscout/Point.h>
#include <osmscout/Tag.h>
#include <osmscout/TypeConfig.h>
 
#include <osmscout/util/GeoBox.h>
#include <osmscout/util/Geometry.h>
#include <osmscout/util/Progress.h>
 
#include <osmscout/io/FileScanner.h>
#include <osmscout/io/FileWriter.h>
 
#include <osmscout/system/Compiler.h>
 
namespace osmscout {
 
  class OSMSCOUT_API Way CLASS_FINAL
  {
  private:
    FeatureValueBuffer featureValueBuffer; 
 
    FileOffset         fileOffset=0;         
    FileOffset         nextFileOffset=0;     
 
 
  public:
    std::vector<Point>          nodes;        
    std::vector<SegmentGeoBox>  segments;     
    GeoBox                      bbox;         
 
  public:
    Way() = default;
 
    FileOffset GetFileOffset() const
    {
      return fileOffset;
    }
 
    FileOffset GetNextFileOffset() const
    {
      return nextFileOffset;
    }
 
    ObjectFileRef GetObjectFileRef() const
    {
      return {fileOffset,refWay};
    }
 
    TypeInfoRef GetType() const
    {
      return featureValueBuffer.GetType();
    }
 
    size_t GetFeatureCount() const
    {
      return featureValueBuffer.GetType()->GetFeatureCount();
    }
 
    bool HasFeature(size_t idx) const
    {
      return featureValueBuffer.HasFeature(idx);
    }
 
    const FeatureInstance& GetFeature(size_t idx) const
    {
      return featureValueBuffer.GetType()->GetFeature(idx);
    }
 
    FeatureValue* GetFeatureValue(size_t idx) const
    {
      return featureValueBuffer.GetValue(idx);
    }
 
    void UnsetFeature(size_t idx)
    {
      featureValueBuffer.FreeValue(idx);
    }
 
    const FeatureValueBuffer& GetFeatureValueBuffer() const
    {
      return featureValueBuffer;
    }
 
    bool IsValid() const {
      return nodes.size()>=2;
    }
 
    bool IsCircular() const
    {
      return nodes[0].GetId()!=0 &&
             nodes[0].GetId()==nodes[nodes.size()-1].GetId();
    }
 
    Id GetSerial(size_t index) const
    {
      return nodes[index].GetSerial();
    }
 
    Id GetId(size_t index) const
    {
      return nodes[index].GetId();
    }
 
    Id GetFrontId() const
    {
      return nodes.front().GetId();
    }
 
    Id GetBackId() const
    {
      return nodes.back().GetId();
    }
 
    const Point& GetFront() const
    {
      return nodes.front();
    }
 
    const Point& GetBack() const
    {
      return nodes.back();
    }
 
    const Point& GetPoint(size_t index) const
    {
      return nodes[index];
    }
 
    const GeoCoord& GetCoord(size_t index) const
    {
      return nodes[index].GetCoord();
    }
 
    GeoBox GetBoundingBox() const
    {
      if (bbox.IsValid() || nodes.empty()) {
        return bbox;
      }
 
      return osmscout::GetBoundingBox(nodes);
    }

    bool Intersects(const GeoBox& boundingBox) const
    {
      return GetBoundingBox().Intersects(boundingBox);
    }
 
    bool GetCenter(GeoCoord& center) const;
 
    bool GetNodeIndexByNodeId(Id id,
                              size_t& index) const;
 
    void SetType(const TypeInfoRef& type)
    {
      featureValueBuffer.SetType(type);
    }
 
    void SetFeatures(const FeatureValueBuffer& buffer)
    {
      featureValueBuffer.Set(buffer);
    }
 
    void Read(const TypeConfig& typeConfig,
              FileScanner& scanner);
    void ReadOptimized(const TypeConfig& typeConfig,
                       FileScanner& scanner);
 
    void Write(const TypeConfig& typeConfig,
               FileWriter& writer) const;
    void WriteOptimized(const TypeConfig& typeConfig,
                        FileWriter& writer) const;
  };
 
  using WayRef = std::shared_ptr<Way>;
}
 
#endif