vtkCoordinate.h

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

  Program:   Visualization Toolkit
  Module:    vtkCoordinate.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 vtkCoordinate_h
#define vtkCoordinate_h

#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkObject.h"
class vtkViewport;

#define VTK_DISPLAY             0
#define VTK_NORMALIZED_DISPLAY  1
#define VTK_VIEWPORT            2
#define VTK_NORMALIZED_VIEWPORT 3
#define VTK_VIEW                4
#define VTK_WORLD               5
#define VTK_USERDEFINED         6

class VTKRENDERINGCORE_EXPORT vtkCoordinate : public vtkObject
{
public:
  vtkTypeMacro(vtkCoordinate, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkCoordinate* New();


  vtkSetMacro(CoordinateSystem, int);
  vtkGetMacro(CoordinateSystem, int);
  void SetCoordinateSystemToDisplay()
    { this->SetCoordinateSystem(VTK_DISPLAY); }
  void SetCoordinateSystemToNormalizedDisplay()
    { this->SetCoordinateSystem(VTK_NORMALIZED_DISPLAY); }
  void SetCoordinateSystemToViewport()
    { this->SetCoordinateSystem(VTK_VIEWPORT); }
  void SetCoordinateSystemToNormalizedViewport()
    { this->SetCoordinateSystem(VTK_NORMALIZED_VIEWPORT); }
  void SetCoordinateSystemToView()
    { this->SetCoordinateSystem(VTK_VIEW); }
  void SetCoordinateSystemToWorld()
    { this->SetCoordinateSystem(VTK_WORLD); }

  const char *GetCoordinateSystemAsString ();


  vtkSetVector3Macro(Value, double);
  vtkGetVector3Macro(Value, double);
  void SetValue(double a, double b)
    { this->SetValue(a, b, 0.0); }


  virtual void SetReferenceCoordinate(vtkCoordinate*);
  vtkGetObjectMacro(ReferenceCoordinate, vtkCoordinate);


  void SetViewport(vtkViewport *viewport);
  vtkGetObjectMacro(Viewport, vtkViewport);


  double *GetComputedWorldValue(vtkViewport *);
  int *GetComputedViewportValue(vtkViewport *);
  int *GetComputedDisplayValue(vtkViewport *);
  int *GetComputedLocalDisplayValue(vtkViewport *);

  double *GetComputedDoubleViewportValue(vtkViewport *);
  double *GetComputedDoubleDisplayValue(vtkViewport *);

  double *GetComputedValue(vtkViewport *);


  virtual double *GetComputedUserDefinedValue(vtkViewport *)
    { return this->Value; }

protected:
  vtkCoordinate();
  ~vtkCoordinate();

  double Value[3];
  int CoordinateSystem;
  vtkCoordinate *ReferenceCoordinate;
  vtkViewport *Viewport;
  double ComputedWorldValue[3];
  int ComputedDisplayValue[2];
  int ComputedViewportValue[2];
  int Computing;

  double ComputedDoubleDisplayValue[2];
  double ComputedDoubleViewportValue[2];
  double ComputedUserDefinedValue[3];

private:
  vtkCoordinate(const vtkCoordinate&);  // Not implemented.
  void operator=(const vtkCoordinate&);  // Not implemented.
};

#endif