ogrGeometry.h

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#pragma once

#include <features/featureGeometry.h>

class OGRGeometry;
class OGRPoint;
class OGRLineString;
class OGRPolygon;
class OGRGeometryCollection;

namespace MAKVRinTerra
{

   class DtProj;

   class DT_DLL_features DtOgrGeometry : public DtFeatureGeometry::Implementation
   {
   public:
      typedef boost::shared_ptr<DtOgrGeometry>       Ptr;
      typedef boost::shared_ptr<const DtOgrGeometry> CPtr;

      typedef DtFeatureGeometry::Implementation      Implementation;
      typedef DtFeatureGeometry::Type                Type;

      template <Type T>
      struct OgrType
      {
         typedef OGRGeometry type;
      };

      static DtFeatureGeometry Convert(DtFeatureGeometry);

      static DtFeatureGeometry Make(OGRGeometry*);
      static DtFeatureGeometry Make(OGRGeometry*, const DtProj&);

      static DtFeatureGeometry MakeShared(
         const boost::shared_ptr<const DtOgrGeometry>& owner,
         const OGRGeometry& geometry);

      Ptr shared_from_this();
      CPtr shared_from_this() const;

      virtual const OGRGeometry& ogrGeometry() const = 0;

      DtFeatureGeometry::Point centroid() const;

      bool equals(DtFeatureGeometry) const;

      bool intersects(DtFeatureGeometry) const;

      bool overlaps(DtFeatureGeometry) const;

      bool crosses(DtFeatureGeometry) const;

      bool covers(DtFeatureGeometry) const;

      bool within(DtFeatureGeometry) const;

      bool touches(DtFeatureGeometry) const;

      bool contains(DtFeatureGeometry) const;

      double length() const;

      double area() const;

      double distanceTo(DtFeatureGeometry, const DtProj&) const;

      DtFeatureGeometry unionWith(DtFeatureGeometry) const;

      DtFeatureGeometry intersectionWith(DtFeatureGeometry) const;

      DtFeatureGeometry differenceWith(DtFeatureGeometry) const;

      DtFeatureGeometry buffer(double width, unsigned segments) const;

      DtFeatureGeometry bufferWithFlatCap(double width, unsigned segments) const;

      DtFeatureGeometry convexHull() const;

      DtFeatureGeometry boundary() const;

      DtFeatureGeometry::Point closestPointTo(
         DtFeatureGeometry, const DtProj&, double* distanceTo = 0) const;
   };

   template <>
   struct DtOgrGeometry::OgrType<DtFeatureGeometry::UnknownType>
   {
      typedef OGRGeometryCollection type;
   };

   template <>
   struct DtOgrGeometry::OgrType<DtFeatureGeometry::PointType>
   {
      typedef OGRPoint type;
   };

   template <>
   struct DtOgrGeometry::OgrType<DtFeatureGeometry::PathType>
   {
      typedef OGRLineString type;
   };

   template <>
   struct DtOgrGeometry::OgrType<DtFeatureGeometry::AreaType>
   {
      typedef OGRPolygon type;
   };

   template <DtFeatureGeometry::Type T>
   class DT_DLL_features DtOgrGeometryImpl : public DtOgrGeometry
   {
   public:
      typedef boost::shared_ptr<DtOgrGeometryImpl> Ptr;

      static DtFeatureGeometry Convert(DtFeatureGeometry::Handle<T>);

      Type type() const;

      const typename OgrType<T>::type & ogrGeometry() const = 0;

      unsigned numberOfPoints() const;
      std::auto_ptr<PointVector> points() const;
      unsigned numberOfSubGeometries() const;
      std::auto_ptr<GeometryVector> subGeometries() const;
   };

   typedef DtOgrGeometryImpl<DtFeatureGeometry::UnknownType>   DtOgrUnknown;
   typedef DtOgrGeometryImpl<DtFeatureGeometry::PointType>     DtOgrPoint;
   typedef DtOgrGeometryImpl<DtFeatureGeometry::PathType>      DtOgrPath;
   typedef DtOgrGeometryImpl<DtFeatureGeometry::AreaType>      DtOgrArea;
}