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dox/Widgets/vtkOrientedGlyphContourRepresentation.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkOrientedGlyphContourRepresentation.h,v $
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00030 #ifndef __vtkOrientedGlyphContourRepresentation_h
00031 #define __vtkOrientedGlyphContourRepresentation_h
00032 
00033 #include "vtkContourRepresentation.h"
00034 
00035 class vtkProperty;
00036 class vtkActor;
00037 class vtkPolyDataMapper;
00038 class vtkPolyData;
00039 class vtkGlyph3D;
00040 class vtkPoints;
00041 
00042 class VTK_WIDGETS_EXPORT vtkOrientedGlyphContourRepresentation : public vtkContourRepresentation
00043 {
00044 public:
00046   static vtkOrientedGlyphContourRepresentation *New();
00047 
00049 
00050   vtkTypeRevisionMacro(vtkOrientedGlyphContourRepresentation,vtkContourRepresentation);
00051   void PrintSelf(ostream& os, vtkIndent indent);
00053 
00055 
00058   void SetCursorShape(vtkPolyData *cursorShape);
00059   vtkPolyData *GetCursorShape();
00061 
00063 
00066   void SetActiveCursorShape(vtkPolyData *activeShape);
00067   vtkPolyData *GetActiveCursorShape();
00069 
00071 
00073   vtkGetObjectMacro(Property,vtkProperty);
00075   
00077 
00079   vtkGetObjectMacro(ActiveProperty,vtkProperty);
00081   
00083 
00084   vtkGetObjectMacro(LinesProperty,vtkProperty);
00086   
00088 
00091   virtual void SetRenderer(vtkRenderer *ren);
00092   virtual void BuildRepresentation();
00093   virtual void StartWidgetInteraction(double eventPos[2]);
00094   virtual void WidgetInteraction(double eventPos[2]);
00095   virtual int ComputeInteractionState(int X, int Y, int modified=0);
00097 
00099 
00100   virtual void GetActors(vtkPropCollection *);
00101   virtual void ReleaseGraphicsResources(vtkWindow *);
00102   virtual int RenderOverlay(vtkViewport *viewport);
00103   virtual int RenderOpaqueGeometry(vtkViewport *viewport);
00104   virtual int RenderTranslucentPolygonalGeometry(vtkViewport *viewport);
00105   virtual int HasTranslucentPolygonalGeometry();
00107   
00109   virtual vtkPolyData * GetContourRepresentationAsPolyData();
00110 
00112 
00116   vtkSetMacro( AlwaysOnTop, int );
00117   vtkGetMacro( AlwaysOnTop, int );
00118   vtkBooleanMacro( AlwaysOnTop, int );
00120   
00121 protected:
00122   vtkOrientedGlyphContourRepresentation();
00123   ~vtkOrientedGlyphContourRepresentation();
00124 
00125   // Render the cursor
00126   vtkActor             *Actor;
00127   vtkPolyDataMapper    *Mapper;
00128   vtkGlyph3D           *Glypher;
00129   vtkActor             *ActiveActor;
00130   vtkPolyDataMapper    *ActiveMapper;
00131   vtkGlyph3D           *ActiveGlypher;
00132   vtkPolyData          *CursorShape;
00133   vtkPolyData          *ActiveCursorShape;
00134   vtkPolyData          *FocalData;
00135   vtkPoints            *FocalPoint;
00136   vtkPolyData          *ActiveFocalData;
00137   vtkPoints            *ActiveFocalPoint;
00138 
00139   vtkPolyData          *Lines;
00140   vtkPolyDataMapper    *LinesMapper;
00141   vtkActor             *LinesActor;
00142   
00143   // Support picking
00144   double LastPickPosition[3];
00145   double LastEventPosition[2];
00146   
00147   // Methods to manipulate the cursor
00148   void Translate(double eventPos[2]);
00149   void Scale(double eventPos[2]);
00150   void ShiftContour(double eventPos[2]);
00151   void ScaleContour(double eventPos[2]);
00152 
00153   void ComputeCentroid(double* ioCentroid);
00154 
00155   // Properties used to control the appearance of selected objects and
00156   // the manipulator in general.
00157   vtkProperty   *Property;
00158   vtkProperty   *ActiveProperty;
00159   vtkProperty   *LinesProperty;
00160   void           CreateDefaultProperties();
00161   
00162   
00163   // Distance between where the mouse event happens and where the
00164   // widget is focused - maintain this distance during interaction.
00165   double InteractionOffset[2];
00166 
00167   int AlwaysOnTop;
00168 
00169   void BuildLines();
00170   
00171 private:
00172   vtkOrientedGlyphContourRepresentation(const vtkOrientedGlyphContourRepresentation&);  //Not implemented
00173   void operator=(const vtkOrientedGlyphContourRepresentation&);  //Not implemented
00174 };
00175 
00176 #endif

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