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 std::shared_ptr<DtOgrGeometry>       Ptr;
      typedef std::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 std::shared_ptr<const DtOgrGeometry>& owner,
         const OGRGeometry& geometry);

      Ptr shared_from_this();
      CPtr shared_from_this() const;

      virtual const OGRGeometry& ogrGeometry() const = 0;

      virtual DtFeatureGeometry::Point centroid() const override;

      virtual bool equals(DtFeatureGeometry) const override;

      virtual bool intersects(DtFeatureGeometry) const override;

      virtual bool overlaps(DtFeatureGeometry) const override;

      virtual bool crosses(DtFeatureGeometry) const override;

      virtual bool covers(DtFeatureGeometry) const override;

      virtual bool within(DtFeatureGeometry) const override;

      virtual bool touches(DtFeatureGeometry) const override;

      virtual bool contains(DtFeatureGeometry) const override;

      virtual double length() const override;

      virtual double area() const override;

      virtual double distanceTo(DtFeatureGeometry, const DtProj&) const override;

      virtual DtFeatureGeometry unionWith(DtFeatureGeometry) const override;

      virtual DtFeatureGeometry intersectionWith(DtFeatureGeometry) const override;

      virtual DtFeatureGeometry differenceWith(DtFeatureGeometry) const override;

      virtual DtFeatureGeometry buffer(double width, unsigned segments) const override;

      virtual DtFeatureGeometry bufferWithFlatCap(double width, unsigned segments) const override;

      virtual DtFeatureGeometry convexHull() const override;

      virtual DtFeatureGeometry boundary() const override;

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

   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 std::shared_ptr<DtOgrGeometryImpl> Ptr;

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

      virtual Type type() const override;

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

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

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