otbOGRDataToClassStatisticsFilter.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 otbOGRDataToClassStatisticsFilter_h
#define otbOGRDataToClassStatisticsFilter_h
 
#include "otbPersistentSamplingFilterBase.h"
#include "otbPersistentFilterStreamingDecorator.h"
#include "itkSimpleDataObjectDecorator.h"
#include <string>
 
namespace otb
{
 
template <class TInputImage, class TMaskImage>
class ITK_EXPORT PersistentOGRDataToClassStatisticsFilter : public PersistentSamplingFilterBase<TInputImage, TMaskImage>
{
public:
 
  typedef PersistentOGRDataToClassStatisticsFilter Self;
  typedef PersistentSamplingFilterBase<TInputImage, TMaskImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  typedef TInputImage                         InputImageType;
  typedef typename InputImageType::Pointer    InputImagePointer;
  typedef typename InputImageType::RegionType RegionType;
  typedef typename InputImageType::PointType  PointType;
 
  typedef std::map<std::string, unsigned long>   ClassCountMapType;
  typedef std::map<unsigned long, unsigned long> PolygonSizeMapType;
  typedef itk::SimpleDataObjectDecorator<ClassCountMapType>  ClassCountObjectType;
  typedef itk::SimpleDataObjectDecorator<PolygonSizeMapType> PolygonSizeObjectType;
 
  typedef itk::DataObject::DataObjectPointerArraySizeType DataObjectPointerArraySizeType;
 
  itkNewMacro(Self);
 
  itkTypeMacro(PersistentOGRDataToClassStatisticsFilter, PersistentSamplingFilterBase);
 
  void Synthetize(void) override;
 
  void Reset(void) override;
 
  const ClassCountObjectType* GetClassCountOutput() const;
  ClassCountObjectType*       GetClassCountOutput();
 
  const PolygonSizeObjectType* GetPolygonSizeOutput() const;
  PolygonSizeObjectType*       GetPolygonSizeOutput();
 
  itk::DataObject::Pointer MakeOutput(DataObjectPointerArraySizeType idx) override;
  using Superclass::MakeOutput;
 
protected:
  PersistentOGRDataToClassStatisticsFilter();
 
  ~PersistentOGRDataToClassStatisticsFilter() override
  {
  }
 
  void ProcessSample(const ogr::Feature& feature, typename TInputImage::IndexType& imgIndex, typename TInputImage::PointType& imgPoint,
                     itk::ThreadIdType& threadid) override;
 
  void PrepareFeature(const ogr::Feature& feature, itk::ThreadIdType& threadid) override;
 
private:
  PersistentOGRDataToClassStatisticsFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  std::vector<unsigned long> m_NbPixelsThread;
 
  std::vector<ClassCountMapType> m_ElmtsInClassThread;
 
  std::vector<PolygonSizeMapType> m_PolygonThread;
 
  std::vector<std::string> m_CurrentClass;
 
  std::vector<unsigned long> m_CurrentFID;
};
 
template <class TInputImage, class TMaskImage>
class ITK_EXPORT OGRDataToClassStatisticsFilter : public PersistentFilterStreamingDecorator<PersistentOGRDataToClassStatisticsFilter<TInputImage, TMaskImage>>
{
public:
 
  typedef OGRDataToClassStatisticsFilter Self;
  typedef PersistentFilterStreamingDecorator<PersistentOGRDataToClassStatisticsFilter<TInputImage, TMaskImage>> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  typedef TInputImage          InputImageType;
  typedef TMaskImage           MaskImageType;
  typedef otb::ogr::DataSource OGRDataType;
 
  typedef typename Superclass::FilterType            FilterType;
  typedef typename FilterType::ClassCountMapType     ClassCountMapType;
  typedef typename FilterType::PolygonSizeMapType    PolygonSizeMapType;
  typedef typename FilterType::ClassCountObjectType  ClassCountObjectType;
  typedef typename FilterType::PolygonSizeObjectType PolygonSizeObjectType;
 
  itkNewMacro(Self);
 
  itkTypeMacro(OGRDataToClassStatisticsFilter, PersistentFilterStreamingDecorator);
 
  using Superclass::SetInput;
  virtual void SetInput(const TInputImage* image);
 
  const TInputImage* GetInput();
 
  void SetOGRData(const otb::ogr::DataSource* data);
  const otb::ogr::DataSource* GetOGRData();
 
  void SetMask(const TMaskImage* mask);
  const TMaskImage* GetMask();
 
  void SetFieldName(std::string& key);
  std::string GetFieldName();
 
  void SetLayerIndex(int index);
  int GetLayerIndex();
 
  const ClassCountObjectType* GetClassCountOutput() const;
  ClassCountObjectType*       GetClassCountOutput();
 
  const PolygonSizeObjectType* GetPolygonSizeOutput() const;
  PolygonSizeObjectType*       GetPolygonSizeOutput();
 
protected:
  OGRDataToClassStatisticsFilter()
  {
  }
 
  ~OGRDataToClassStatisticsFilter() override
  {
  }
 
private:
  OGRDataToClassStatisticsFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
};
 
} // end of namespace otb
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbOGRDataToClassStatisticsFilter.hxx"
#endif
 
#endif