dox/Rendering/Annotation/vtkAxisActor.h

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

Program:   Visualization Toolkit
Module:    vtkAxisActor.h
Language:  C++

Copyright (c) 1993-2000 Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
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 __vtkAxisActor_h
#define __vtkAxisActor_h

#include "vtkRenderingAnnotationModule.h" // For export macro
#include "vtkActor.h"

#define VTK_MAX_LABELS    200
#define VTK_MAX_TICKS     1000

#define VTK_AXIS_TYPE_X   0
#define VTK_AXIS_TYPE_Y   1
#define VTK_AXIS_TYPE_Z   2

#define VTK_TICKS_INSIDE  0
#define VTK_TICKS_OUTSIDE 1
#define VTK_TICKS_BOTH    2

#define VTK_AXIS_POS_MINMIN 0
#define VTK_AXIS_POS_MINMAX 1
#define VTK_AXIS_POS_MAXMAX 2
#define VTK_AXIS_POS_MAXMIN 3

class vtkAxisFollower;
class vtkCamera;
class vtkCoordinate;
class vtkFollower;
class vtkPoints;
class vtkPolyData;
class vtkPolyDataMapper;
class vtkProperty2D;
class vtkStringArray;
class vtkTextActor;
class vtkTextProperty;
class vtkVectorText;

class VTKRENDERINGANNOTATION_EXPORT vtkAxisActor : public vtkActor
{
 public:
  vtkTypeMacro(vtkAxisActor,vtkActor);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkAxisActor *New();


  virtual vtkCoordinate *GetPoint1Coordinate();
  virtual void SetPoint1(double x[3])
  { this->SetPoint1(x[0], x[1], x[2]); }
  virtual void SetPoint1(double x, double y, double z);
  virtual double *GetPoint1();


  virtual vtkCoordinate *GetPoint2Coordinate();
  virtual void SetPoint2(double x[3])
  { this->SetPoint2(x[0], x[1], x[2]); }
  virtual void SetPoint2(double x, double y, double z);
  virtual double *GetPoint2();


  vtkSetVector2Macro(Range,double);
  vtkGetVectorMacro(Range,double,2);


  void   SetBounds(double bounds[6]);
  void   SetBounds(double xmin, double xmax, double ymin, double ymax, double zmin, double zmax);
  double *GetBounds(void);
  void   GetBounds(double bounds[6]);


  vtkSetStringMacro(LabelFormat);
  vtkGetStringMacro(LabelFormat);


  vtkSetMacro(MinorTicksVisible, int);
  vtkGetMacro(MinorTicksVisible, int);
  vtkBooleanMacro(MinorTicksVisible, int);



  void SetTitle(const char *t);
  vtkGetStringMacro(Title);


  vtkSetMacro(MajorTickSize, double);
  vtkGetMacro(MajorTickSize, double);


  vtkSetMacro(MinorTickSize, double);
  vtkGetMacro(MinorTickSize, double);


  vtkSetClampMacro(TickLocation, int, VTK_TICKS_INSIDE, VTK_TICKS_BOTH);
  vtkGetMacro(TickLocation, int);

  void SetTickLocationToInside(void)
  { this->SetTickLocation(VTK_TICKS_INSIDE); };
  void SetTickLocationToOutside(void)
  { this->SetTickLocation(VTK_TICKS_OUTSIDE); };
  void SetTickLocationToBoth(void)
  { this->SetTickLocation(VTK_TICKS_BOTH); };


  vtkSetMacro(AxisVisibility, int);
  vtkGetMacro(AxisVisibility, int);
  vtkBooleanMacro(AxisVisibility, int);


  vtkSetMacro(TickVisibility, int);
  vtkGetMacro(TickVisibility, int);
  vtkBooleanMacro(TickVisibility, int);


  vtkSetMacro(LabelVisibility, int);
  vtkGetMacro(LabelVisibility, int);
  vtkBooleanMacro(LabelVisibility, int);


  vtkSetMacro(TitleVisibility, int);
  vtkGetMacro(TitleVisibility, int);
  vtkBooleanMacro(TitleVisibility, int);


  virtual void SetTitleTextProperty(vtkTextProperty *p);
  vtkGetObjectMacro(TitleTextProperty,vtkTextProperty);


  virtual void SetLabelTextProperty(vtkTextProperty *p);
  vtkGetObjectMacro(LabelTextProperty,vtkTextProperty);


  void SetAxisLinesProperty(vtkProperty *);
  vtkProperty* GetAxisLinesProperty();


  void SetGridlinesProperty(vtkProperty *);
  vtkProperty* GetGridlinesProperty();


  void SetInnerGridlinesProperty(vtkProperty *);
  vtkProperty* GetInnerGridlinesProperty();


  void SetGridpolysProperty(vtkProperty *);
  vtkProperty* GetGridpolysProperty();


  vtkSetMacro(DrawGridlines, int);
  vtkGetMacro(DrawGridlines, int);
  vtkBooleanMacro(DrawGridlines, int);


  vtkSetMacro(DrawGridlinesOnly, int);
  vtkGetMacro(DrawGridlinesOnly, int);
  vtkBooleanMacro(DrawGridlinesOnly, int);

  vtkSetMacro(DrawGridlinesLocation, int);
  vtkGetMacro(DrawGridlinesLocation, int);


  vtkSetMacro(DrawInnerGridlines, int);
  vtkGetMacro(DrawInnerGridlines, int);
  vtkBooleanMacro(DrawInnerGridlines, int);


  vtkSetMacro(GridlineXLength, double);
  vtkGetMacro(GridlineXLength, double);
  vtkSetMacro(GridlineYLength, double);
  vtkGetMacro(GridlineYLength, double);
  vtkSetMacro(GridlineZLength, double);
  vtkGetMacro(GridlineZLength, double);


  vtkSetMacro(DrawGridpolys, int);
  vtkGetMacro(DrawGridpolys, int);
  vtkBooleanMacro(DrawGridpolys, int);


  vtkSetClampMacro(AxisType, int, VTK_AXIS_TYPE_X, VTK_AXIS_TYPE_Z);
  vtkGetMacro(AxisType, int);
  void SetAxisTypeToX(void) { this->SetAxisType(VTK_AXIS_TYPE_X); };
  void SetAxisTypeToY(void) { this->SetAxisType(VTK_AXIS_TYPE_Y); };
  void SetAxisTypeToZ(void) { this->SetAxisType(VTK_AXIS_TYPE_Z); };


  vtkSetClampMacro(AxisPosition, int, VTK_AXIS_POS_MINMIN, VTK_AXIS_POS_MAXMIN);
  vtkGetMacro(AxisPosition, int);

  void SetAxisPositionToMinMin(void)
  { this->SetAxisPosition(VTK_AXIS_POS_MINMIN); };
  void SetAxisPositionToMinMax(void)
  { this->SetAxisPosition(VTK_AXIS_POS_MINMAX); };
  void SetAxisPositionToMaxMax(void)
  { this->SetAxisPosition(VTK_AXIS_POS_MAXMAX); };
  void SetAxisPositionToMaxMin(void)
  { this->SetAxisPosition(VTK_AXIS_POS_MAXMIN); };


  virtual void SetCamera(vtkCamera*);
  vtkGetObjectMacro(Camera, vtkCamera);


  virtual int RenderOpaqueGeometry(vtkViewport* viewport);
  virtual int RenderTranslucentGeometry(vtkViewport* viewport);
  virtual int RenderTranslucentPolygonalGeometry(vtkViewport* viewport);
  virtual int RenderOverlay(vtkViewport* viewport);
  int HasTranslucentPolygonalGeometry();

  void ReleaseGraphicsResources(vtkWindow *);

//BTX
  double ComputeMaxLabelLength(const double [3]);
  double ComputeTitleLength(const double [3]);
//ETX
  void SetLabelScale(const double);
  void SetTitleScale(const double);


  vtkSetMacro(MinorStart, double);
  vtkGetMacro(MinorStart, double);
  double GetMajorStart(int axis);
  void SetMajorStart(int axis,double value);
  //vtkSetMacro(MajorStart, double);
  //vtkGetMacro(MajorStart, double);
  vtkSetMacro(DeltaMinor, double);
  vtkGetMacro(DeltaMinor, double);
  double GetDeltaMajor(int axis);
  void SetDeltaMajor(int axis,double value);
  //vtkSetMacro(DeltaMajor, double);
  //vtkGetMacro(DeltaMajor, double);


  vtkSetMacro(MinorRangeStart, double);
  vtkGetMacro(MinorRangeStart, double);
  vtkSetMacro(MajorRangeStart, double);
  vtkGetMacro(MajorRangeStart, double);
  vtkSetMacro(DeltaRangeMinor, double);
  vtkGetMacro(DeltaRangeMinor, double);
  vtkSetMacro(DeltaRangeMajor, double);
  vtkGetMacro(DeltaRangeMajor, double);

//BTX
  void SetLabels(vtkStringArray *labels);
//ETX

  void BuildAxis(vtkViewport *viewport, bool);

//BTX

  vtkGetObjectMacro(TitleActor,  vtkAxisFollower);


  inline vtkAxisFollower** GetLabelActors()
    {
    return this->LabelActors;
    }
//ETX


  vtkGetMacro(NumberOfLabelsBuilt, int);


  vtkSetMacro(CalculateTitleOffset, int);
  vtkGetMacro(CalculateTitleOffset, int);
  vtkBooleanMacro(CalculateTitleOffset, int);


  vtkSetMacro(CalculateLabelOffset, int);
  vtkGetMacro(CalculateLabelOffset, int);
  vtkBooleanMacro(CalculateLabelOffset, int);


  vtkSetMacro(Use2DMode, int);
  vtkGetMacro(Use2DMode, int);


  vtkSetMacro(VerticalOffsetXTitle2D, double);
  vtkGetMacro(VerticalOffsetXTitle2D, double);


  vtkSetMacro(HorizontalOffsetYTitle2D, double);
  vtkGetMacro(HorizontalOffsetYTitle2D, double);


  vtkSetMacro(SaveTitlePosition, int);
  vtkGetMacro(SaveTitlePosition, int);


  vtkSetVector3Macro(AxisBaseForX, double);
  vtkGetVector3Macro(AxisBaseForX, double);


  vtkSetVector3Macro(AxisBaseForY, double);
  vtkGetVector3Macro(AxisBaseForY, double);


  vtkSetVector3Macro(AxisBaseForZ, double);
  vtkGetVector3Macro(AxisBaseForZ, double);


  vtkSetMacro(AxisOnOrigin,int);
  vtkGetMacro(AxisOnOrigin,int);


  vtkSetMacro(LabelOffset, double);
  vtkGetMacro(LabelOffset, double);
  vtkSetMacro(TitleOffset, double);
  vtkGetMacro(TitleOffset, double);
  vtkSetMacro(ScreenSize, double);
  vtkGetMacro(ScreenSize, double);

 protected:
  vtkAxisActor();
  ~vtkAxisActor();

  char  *Title;
  double  Range[2];
  double  LastRange[2];
  char  *LabelFormat;
  int    NumberOfLabelsBuilt;
  int    MinorTicksVisible;
  int    LastMinorTicksVisible;
  int    TickLocation;

  int    DrawGridlines;
  int    DrawGridlinesOnly;
  int    LastDrawGridlines;
  int    DrawGridlinesLocation; // 0: all | 1: closest | 2: farest
  int    LastDrawGridlinesLocation; // 0: all | 1: closest | 2: farest
  double GridlineXLength;
  double GridlineYLength;
  double GridlineZLength;

  int    DrawInnerGridlines;
  int    LastDrawInnerGridlines;

  int    DrawGridpolys;
  int    LastDrawGridpolys;

  int    AxisVisibility;
  int    TickVisibility;
  int    LastTickVisibility;
  int    LabelVisibility;
  int    TitleVisibility;

  int    AxisType;
  int    AxisPosition;
  double  Bounds[6];

  double AxisBaseForX[3];
  double AxisBaseForY[3];
  double AxisBaseForZ[3];

 private:
  vtkAxisActor(const vtkAxisActor&); // Not implemented
  void operator=(const vtkAxisActor&); // Not implemented

  void TransformBounds(vtkViewport *, double bnds[6]);

  void BuildLabels(vtkViewport *, bool);
  void BuildLabels2D(vtkViewport *, bool);
  void SetLabelPositions(vtkViewport *, bool);
  void SetLabelPositions2D(vtkViewport *, bool);

  void BuildTitle(bool);
  void BuildTitle2D(vtkViewport *viewport, bool);

  void SetAxisPointsAndLines(void);
  bool BuildTickPoints(double p1[3], double p2[3], bool force);

  bool TickVisibilityChanged(void);
  vtkProperty *NewTitleProperty();
  vtkProperty2D *NewTitleProperty2D();
  vtkProperty *NewLabelProperty();

  bool BoundsDisplayCoordinateChanged(vtkViewport *viewport);

  vtkCoordinate *Point1Coordinate;
  vtkCoordinate *Point2Coordinate;

  double  MajorTickSize;
  double  MinorTickSize;

  // For each axis (for the inner gridline generation)
  double  MajorStart[3];
  double  DeltaMajor[3];
  double  MinorStart;
  double  DeltaMinor;

  // For the ticks, w.r.t to the set range
  double  MajorRangeStart;
  double  MinorRangeStart;
  double  DeltaRangeMinor;
  double  DeltaRangeMajor;

  int    LastAxisPosition;
  int    LastAxisType;
  int    LastTickLocation;
  double LastLabelStart;

  vtkPoints         *MinorTickPts;
  vtkPoints         *MajorTickPts;
  vtkPoints         *GridlinePts;
  vtkPoints         *InnerGridlinePts;
  vtkPoints         *GridpolyPts;

  vtkVectorText     *TitleVector;
  vtkPolyDataMapper *TitleMapper;
  vtkAxisFollower   *TitleActor;
  vtkTextActor      *TitleActor2D;
  vtkTextProperty   *TitleTextProperty;

  vtkVectorText     **LabelVectors;
  vtkPolyDataMapper **LabelMappers;
  vtkAxisFollower   **LabelActors;
  vtkTextActor      **LabelActors2D;
  vtkTextProperty    *LabelTextProperty;

  vtkPolyData        *AxisLines;
  vtkPolyDataMapper  *AxisLinesMapper;
  vtkActor           *AxisLinesActor;
  vtkPolyData        *Gridlines;
  vtkPolyDataMapper  *GridlinesMapper;
  vtkActor           *GridlinesActor;
  vtkPolyData        *InnerGridlines;
  vtkPolyDataMapper  *InnerGridlinesMapper;
  vtkActor           *InnerGridlinesActor;
  vtkPolyData        *Gridpolys;
  vtkPolyDataMapper  *GridpolysMapper;
  vtkActor           *GridpolysActor;

  vtkCamera          *Camera;
  vtkTimeStamp        BuildTime;
  vtkTimeStamp        BuildTickPointsTime;
  vtkTimeStamp        BoundsTime;
  vtkTimeStamp        LabelBuildTime;
  vtkTimeStamp        TitleTextTime;

  int                 AxisOnOrigin;

  int                 AxisHasZeroLength;

  int                 CalculateTitleOffset;
  int                 CalculateLabelOffset;

  int                 Use2DMode;

  double              VerticalOffsetXTitle2D;

  double              HorizontalOffsetYTitle2D;

  int          SaveTitlePosition;

  double       TitleConstantPosition[2];

  bool                NeedBuild2D;

  double       LastMinDisplayCoordinate[3];
  double       LastMaxDisplayCoordinate[3];


  double ScreenSize;
  double LabelOffset;
  double TitleOffset;
};

#endif