rtkThreeDCircularProjectionGeometryXMLFileReader.h

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/*=========================================================================
 *
 *  Copyright RTK Consortium
 *
 *  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
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  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 rtkThreeDCircularProjectionGeometryXMLFileReader_h
#define rtkThreeDCircularProjectionGeometryXMLFileReader_h

#ifdef _MSC_VER
#  pragma warning(disable : 4786)
#endif

#include <itkXMLFile.h>
#include "rtkThreeDCircularProjectionGeometry.h"
#include "RTKExport.h"

namespace rtk
{

class RTK_EXPORT ThreeDCircularProjectionGeometryXMLFileReader : public itk::XMLReader<ThreeDCircularProjectionGeometry>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(ThreeDCircularProjectionGeometryXMLFileReader);

  using Self = ThreeDCircularProjectionGeometryXMLFileReader;
  using Superclass = itk::XMLReader<ThreeDCircularProjectionGeometry>;
  using Pointer = itk::SmartPointer<Self>;

  using GeometryType = ThreeDCircularProjectionGeometry;
  using GeometryPointer = GeometryType::Pointer;

  static const unsigned int CurrentVersion = 3;

  itkOverrideGetNameOfClassMacro(ThreeDCircularProjectionGeometryXMLFileReader);

  itkNewMacro(Self);

  int
  CanReadFile(const char * name) override;

  itkGetModifiableObjectMacro(Geometry, GeometryType);

protected:
  ThreeDCircularProjectionGeometryXMLFileReader();
  ~ThreeDCircularProjectionGeometryXMLFileReader() override = default;

  void
  StartElement(const char * name, const char ** atts) override;

  void
  StartElement(const char * name);

  void
  EndElement(const char * name) override;

  void
  CharacterDataHandler(const char * inData, int inLength) override;

private:
  GeometryPointer m_Geometry{ GeometryType::New() };

  std::string m_CurCharacterData{ "" };

  double m_InPlaneAngle{ 0. };
  double m_OutOfPlaneAngle{ 0. };
  double m_GantryAngle{ 0. };
  double m_SourceToIsocenterDistance{ 0. };
  double m_SourceOffsetX{ 0. };
  double m_SourceOffsetY{ 0. };
  double m_SourceToDetectorDistance{ 0. };
  double m_ProjectionOffsetX{ 0. };
  double m_ProjectionOffsetY{ 0. };
  double m_CollimationUInf{ std::numeric_limits<double>::max() };
  double m_CollimationUSup{ std::numeric_limits<double>::max() };
  double m_CollimationVInf{ std::numeric_limits<double>::max() };
  double m_CollimationVSup{ std::numeric_limits<double>::max() };

  ThreeDCircularProjectionGeometry::MatrixType m_Matrix;

  unsigned int m_Version{ 0 };
};

RTK_EXPORT ThreeDCircularProjectionGeometry::Pointer
           ReadGeometry(const std::string & filename);

} // namespace rtk
#endif