/usr/include/paraview/vtkMatrixToLinearTransform.h is in paraview-dev 5.0.1+dfsg1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74  | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkMatrixToLinearTransform.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.
=========================================================================*/
// .NAME vtkMatrixToLinearTransform - convert a matrix to a transform
// .SECTION Description
// This is a very simple class which allows a vtkMatrix4x4 to be used in
// place of a vtkLinearTransform or vtkAbstractTransform.  For example,
// if you use it as a proxy between a matrix and vtkTransformPolyDataFilter
// then any modifications to the matrix will automatically be reflected in
// the output of the filter.
// .SECTION See Also
// vtkTransform vtkMatrix4x4 vtkMatrixToHomogeneousTransform
#ifndef vtkMatrixToLinearTransform_h
#define vtkMatrixToLinearTransform_h
#include "vtkCommonTransformsModule.h" // For export macro
#include "vtkLinearTransform.h"
class vtkMatrix4x4;
class VTKCOMMONTRANSFORMS_EXPORT vtkMatrixToLinearTransform : public vtkLinearTransform
{
 public:
  static vtkMatrixToLinearTransform *New();
  vtkTypeMacro(vtkMatrixToLinearTransform,vtkLinearTransform);
  void PrintSelf (ostream& os, vtkIndent indent);
  // Description:
  // Set the input matrix.  Any modifications to the matrix will be
  // reflected in the transformation.
  virtual void SetInput(vtkMatrix4x4*);
  vtkGetObjectMacro(Input,vtkMatrix4x4);
  // Description:
  // The input matrix is left as-is, but the transformation matrix
  // is inverted.
  void Inverse();
  // Description:
  // Get the MTime: this is the bit of magic that makes everything work.
  unsigned long GetMTime();
  // Description:
  // Make a new transform of the same type.
  vtkAbstractTransform *MakeTransform();
protected:
  vtkMatrixToLinearTransform();
  ~vtkMatrixToLinearTransform();
  void InternalUpdate();
  void InternalDeepCopy(vtkAbstractTransform *transform);
  int InverseFlag;
  vtkMatrix4x4 *Input;
private:
  vtkMatrixToLinearTransform(const vtkMatrixToLinearTransform&);  // Not implemented.
  void operator=(const vtkMatrixToLinearTransform&);  // Not implemented.
};
#endif
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