otbGeometriesToGeometriesFilter.h

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/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef otbGeometriesToGeometriesFilter_h
#define otbGeometriesToGeometriesFilter_h
 
#include "otbGeometriesSource.h"
#include <map>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include "otbOGRLayerWrapper.h"
 
#include "otbMacro.h"
 
// forward declarations
namespace otb
{
namespace internal
{
struct ProcessVisitor;
}
} // otb::internal namespace
 
namespace otb
{
class OTBGdalAdapters_EXPORT GeometriesToGeometriesFilter : public GeometriesSource
{
public:
 
  typedef GeometriesToGeometriesFilter  Self;
  typedef itk::ProcessObject            Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  typedef GeometriesSet InputGeometriesType;
  typedef GeometriesSet OutputGeometriesType;
  // typedef GeometriesSet::Pointer               InputGeometriesPointer;
  // typedef GeometriesSet::Pointer               OutputGeometriesPointer;
 
 
  itkTypeMacro(GeometriesToGeometriesFilter, GeometriesSource);
 
  using Superclass::SetInput;
  virtual void SetInput(const InputGeometriesType* input);
  const InputGeometriesType* GetInput(void);
 
 
protected:
  GeometriesToGeometriesFilter();
 
  ~GeometriesToGeometriesFilter() override;
 
  void GenerateData(void) override;
 
private:
  void Process(OutputGeometriesType& inout);
 
  void Process(InputGeometriesType const& source, OutputGeometriesType& destination);
 
 
  virtual void DoProcessLayer(ogr::Layer const& source, ogr::Layer& destination) const = 0;
 
  virtual OGRSpatialReference* DoDefineNewLayerSpatialReference(ogr::Layer const& source) const;
 
  virtual OGRwkbGeometryType DoDefineNewLayerGeometryType(ogr::Layer const& source) const;
 
  virtual std::vector<std::string> DoDefineNewLayerOptions(ogr::Layer const& source) const;
 
  virtual void DoDefineNewLayerFields(ogr::Layer const& source, ogr::Layer& dest) const = 0;
 
  virtual void DoFinalizeInitialization()
  {
  }
 
  friend struct otb::internal::ProcessVisitor;
};
 
struct OTBGdalAdapters_EXPORT FieldCopyTransformation
{
  OGRFeatureDefn& getDefinition(ogr::Layer& outLayer) const
  {
    return outLayer.GetLayerDefn();
  }
 
  void fieldsTransform(ogr::Feature const& itkNotUsed(inoutFeature)) const
  {
    // default => do nothing for in-place transformation
  }
 
  void fieldsTransform(ogr::Feature const& inFeature, ogr::Feature& outFeature) const;
 
  void DefineFields(ogr::Layer const& source, ogr::Layer& dest) const;
 
private:
  mutable std::map<int, int> m_SourceToDestFieldIndicesMap;
};
 
 
template <class TransformationFunctor, class TransformedElementType, class FieldTransformationPolicy = FieldCopyTransformation>
struct TransformationFunctorDispatcher
{
};
 
template <class TransformationFunctor, class FieldTransformationPolicy>
struct TransformationFunctorDispatcher<TransformationFunctor, ogr::Layer, FieldTransformationPolicy> : FieldTransformationPolicy
{
  typedef typename TransformationFunctor::TransformedElementType TransformedElementType;
  BOOST_MPL_ASSERT((boost::is_same<ogr::Layer, TransformedElementType>));
  TransformationFunctorDispatcher()
  {
  }
  TransformationFunctorDispatcher(TransformationFunctor functor) : m_functor(functor)
  {
  }
  void operator()(ogr::Layer const& in, ogr::Layer& out) const;
  void operator()(ogr::Layer& inout) const;
  TransformationFunctor* operator->()
  {
    return &m_functor;
  }
 
private:
  TransformationFunctor m_functor;
};
 
template <class TransformationFunctor, class FieldTransformationPolicy>
struct TransformationFunctorDispatcher<TransformationFunctor, OGRGeometry, FieldTransformationPolicy> : FieldTransformationPolicy
{
  typedef typename TransformationFunctor::TransformedElementType TransformedElementType;
  BOOST_MPL_ASSERT((boost::is_same<OGRGeometry, TransformedElementType>));
  TransformationFunctorDispatcher()
  {
  }
  TransformationFunctorDispatcher(TransformationFunctor functor) : m_functor(functor)
  {
  }
 
  void operator()(ogr::Layer const& in, ogr::Layer& out) const;
  void operator()(ogr::Layer& inout) const;
  TransformationFunctor* operator->()
  {
    return &m_functor;
  }
 
private:
  TransformationFunctor m_functor;
};
 
 
template <class TransformationFunctor, class FieldTransformationPolicy = FieldCopyTransformation>
class ITK_EXPORT DefaultGeometriesToGeometriesFilter
    : public GeometriesToGeometriesFilter,
      public TransformationFunctorDispatcher<TransformationFunctor, typename TransformationFunctor::TransformedElementType, FieldTransformationPolicy>
{
public:
 
  typedef DefaultGeometriesToGeometriesFilter Self;
  typedef GeometriesToGeometriesFilter        Superclass;
  typedef itk::SmartPointer<Self>             Pointer;
  typedef itk::SmartPointer<const Self>       ConstPointer;
 
  typedef TransformationFunctor                                  TransformationFunctorType;
  typedef typename TransformationFunctor::TransformedElementType TransformedElementType;
  typedef TransformationFunctorDispatcher<TransformationFunctorType, TransformedElementType, FieldTransformationPolicy> TransformationFunctorDispatcherType;
 
 
  itkNewMacro(Self);
 
  itkTypeMacro(DefaultGeometriesToGeometriesFilter, GeometriesToGeometriesFilter);
 
protected:
  DefaultGeometriesToGeometriesFilter();
 
  ~DefaultGeometriesToGeometriesFilter() override;
 
  void DoProcessLayer(ogr::Layer const& source, ogr::Layer& destination) const override;
 
  void DoDefineNewLayerFields(ogr::Layer const& source, ogr::Layer& dest) const override
  {
    this->DefineFields(source, dest);
  }
};
 
} // end namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbGeometriesToGeometriesFilter.hxx"
#endif
 
#endif // otbGeometriesToGeometriesFilter_h