mitkGantryTiltInformation.h

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#ifndef mitkGantryTiltInformation_h
#define mitkGantryTiltInformation_h
 
#include "mitkPoint.h"
#include "mitkVector.h"
#include "mitkPoint.h"
 
namespace mitk
{
 
class GantryTiltInformation
{
  public:
 
    // two types to avoid any rounding errors
    typedef  itk::Point<double,3> Point3Dd;
    typedef itk::Vector<double,3> Vector3Dd;
 
    GantryTiltInformation();
 
    void Print(std::ostream& os) const;
 
    GantryTiltInformation( const Point3D& origin1,
        const Point3D& origin2,
        const Vector3D& right,
        const Vector3D& up, unsigned int numberOfSlicesApart);
 
    static
    GantryTiltInformation
    MakeFromTagValues( const std::string& origin1String,
        const std::string& origin2String,
        const std::string& orientationString,
        unsigned int numberOfSlicesApart);
 
    bool IsSheared() const;
 
    bool IsRegularGantryTilt() const;
 
    double GetMatrixCoefficientForCorrectionInWorldCoordinates() const;
 
 
    double GetRealZSpacing() const;
 
    double GetTiltCorrectedAdditionalSize(unsigned int imageSizeZ) const;
 
    double GetTiltAngleInDegrees() const;
 
  private:
 
    Point3D projectPointOnLine( Point3Dd p, Point3Dd lineOrigin, Vector3Dd lineDirection );
 
    double m_ShiftUp;
    double m_ShiftRight;
    double m_ShiftNormal;
    double m_ITKAssumedSliceSpacing;
    unsigned int m_NumberOfSlicesApart;
};
 
} // namespace
 
#endif