vtkHomogeneousTransform.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkHomogeneousTransform.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkHomogeneousTransform_h
#define vtkHomogeneousTransform_h

#include "vtkCommonTransformsModule.h" // For export macro
#include "vtkAbstractTransform.h"

class vtkMatrix4x4;

class VTKCOMMONTRANSFORMS_EXPORT vtkHomogeneousTransform : public vtkAbstractTransform
{
public:

  vtkTypeMacro(vtkHomogeneousTransform,vtkAbstractTransform);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void TransformPoints(vtkPoints *inPts, vtkPoints *outPts) override;

  void TransformPointsNormalsVectors(vtkPoints *inPts,
                                     vtkPoints *outPts,
                                     vtkDataArray *inNms,
                                     vtkDataArray *outNms,
                                     vtkDataArray *inVrs,
                                     vtkDataArray *outVrs,
                                     int nOptionalVectors = 0,
                                     vtkDataArray** inVrsArr = nullptr,
                                     vtkDataArray** outVrsArr = nullptr) override;

  void GetMatrix(vtkMatrix4x4 *m);

  vtkMatrix4x4 *GetMatrix() { this->Update(); return this->Matrix; };

  vtkHomogeneousTransform *GetHomogeneousInverse()
  {
      return static_cast<vtkHomogeneousTransform *>(this->GetInverse());
  }


  void InternalTransformPoint(const float in[3], float out[3]) override;
  void InternalTransformPoint(const double in[3], double out[3]) override;


  void InternalTransformDerivative(const float in[3], float out[3],
                                   float derivative[3][3]) override;
  void InternalTransformDerivative(const double in[3], double out[3],
                                   double derivative[3][3]) override;

protected:
  vtkHomogeneousTransform();
  ~vtkHomogeneousTransform() override;

  void InternalDeepCopy(vtkAbstractTransform *transform) override;

  vtkMatrix4x4 *Matrix;

private:
  vtkHomogeneousTransform(const vtkHomogeneousTransform&) = delete;
  void operator=(const vtkHomogeneousTransform&) = delete;
};

#endif