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vtkImageCroppingRegionsWidget.h
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vtkImageCroppingRegionsWidget.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageCroppingRegionsWidget.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 vtkImageCroppingRegionsWidget - widget for cropping an image
// .SECTION Description
// This widget displays a set of axis aligned lines that can be interactively
// manipulated to crop a volume. The region to be cropped away is displayed
// in a different highlight. Much like the vtkVolumeMapper, this widget
// supports 27 possible configurations of cropping planes. (See
// CroppingRegionFlags). If a volume mapper is set, the cropping planes
// are directly propagated to the volume mapper. The widget invokes a
// CroppingPlanesPositionChangedEvent when the position of any of the
// cropping planes is changed. The widget also invokes an InteractionEvent
// in response to user interaction.
#ifndef vtkImageCroppingRegionsWidget_h
#define vtkImageCroppingRegionsWidget_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtk3DWidget.h"
class vtkActor2D;
class vtkImageData;
class vtkLineSource;
class vtkVolumeMapper;
class vtkPolyData;
class VTKINTERACTIONWIDGETS_EXPORT vtkImageCroppingRegionsWidget : public vtk3DWidget
{
public:
// Description:
// Standard VTK methods.
static vtkImageCroppingRegionsWidget *New();
vtkTypeMacro(vtkImageCroppingRegionsWidget, vtk3DWidget);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Place/Adjust widget within bounds
using vtk3DWidget::PlaceWidget;
virtual void PlaceWidget(double bounds[6]);
// Description:
// Enable/disable the widget
virtual void SetEnabled(int enabling);
// Description:
// Set/Get the plane positions that represent the cropped region.
vtkGetVector6Macro(PlanePositions, double);
virtual void SetPlanePositions(double pos[6])
{this->SetPlanePositions(pos[0], pos[1], pos[2], pos[3], pos[4], pos[5]);}
virtual void SetPlanePositions(float pos[6])
{this->SetPlanePositions(pos[0], pos[1], pos[2], pos[3], pos[4], pos[5]);}
virtual void SetPlanePositions(double xMin, double xMax,
double yMin, double yMax,
double zMin, double zMax);
// Description:
// Set/Get the cropping region flags
virtual void SetCroppingRegionFlags(int flags);
vtkGetMacro(CroppingRegionFlags, int);
// Description:
// Set/get the slice orientation
//BTX
enum
{
SLICE_ORIENTATION_YZ = 0,
SLICE_ORIENTATION_XZ = 1,
SLICE_ORIENTATION_XY = 2
};
//ETX
vtkGetMacro(SliceOrientation, int);
virtual void SetSliceOrientation(int orientation);
virtual void SetSliceOrientationToXY()
{ this->SetSliceOrientation(vtkImageCroppingRegionsWidget::SLICE_ORIENTATION_XY); };
virtual void SetSliceOrientationToYZ()
{ this->SetSliceOrientation(vtkImageCroppingRegionsWidget::SLICE_ORIENTATION_YZ); };
virtual void SetSliceOrientationToXZ()
{ this->SetSliceOrientation(vtkImageCroppingRegionsWidget::SLICE_ORIENTATION_XZ); };
// Description:
// Set/Get the slice number
virtual void SetSlice(int num);
vtkGetMacro(Slice, int);
// Description:
// Set/Get line 1 color
virtual void SetLine1Color(double r, double g, double b);
virtual void SetLine1Color(double rgb[3])
{ this->SetLine1Color(rgb[0], rgb[1], rgb[2]); }
virtual double *GetLine1Color();
virtual void GetLine1Color(double rgb[3]);
// Description:
// Set/Get line 2 color
virtual void SetLine2Color(double r, double g, double b);
virtual void SetLine2Color(double rgb[3])
{ this->SetLine2Color(rgb[0], rgb[1], rgb[2]); }
virtual double *GetLine2Color();
virtual void GetLine2Color(double rgb[3]);
// Description:
// Set/Get line 3 color
virtual void SetLine3Color(double r, double g, double b);
virtual void SetLine3Color(double rgb[3])
{ this->SetLine3Color(rgb[0], rgb[1], rgb[2]); }
virtual double *GetLine3Color();
virtual void GetLine3Color(double rgb[3]);
// Description:
// Set/Get line 4 color
virtual void SetLine4Color(double r, double g, double b);
virtual void SetLine4Color(double rgb[3])
{ this->SetLine4Color(rgb[0], rgb[1], rgb[2]); }
virtual double *GetLine4Color();
virtual void GetLine4Color(double rgb[3]);
// Description:
// Set/Get the input volume mapper
// Update the widget according to its mapper
virtual void SetVolumeMapper(vtkVolumeMapper *mapper);
vtkGetObjectMacro(VolumeMapper, vtkVolumeMapper);
virtual void UpdateAccordingToInput();
// Description:
// Callbacks for user interaction.
void MoveHorizontalLine();
void MoveVerticalLine();
void MoveIntersectingLines();
void UpdateCursorIcon();
void OnButtonPress();
void OnButtonRelease();
void OnMouseMove();
//BTX
// Description:
// Events invoked by this widget
enum WidgetEventIds
{
CroppingPlanesPositionChangedEvent = 10050
};
//ETX
protected:
vtkImageCroppingRegionsWidget();
~vtkImageCroppingRegionsWidget();
vtkVolumeMapper *VolumeMapper;
vtkLineSource *LineSources[4];
vtkActor2D *LineActors[4];
vtkPolyData* RegionPolyData[9];
vtkActor2D* RegionActors[9];
double PlanePositions[6];
int SliceOrientation;
int Slice;
double GetSlicePosition();
int CroppingRegionFlags;
int MouseCursorState;
int Moving;
// Handles the events
static void ProcessEvents(vtkObject* object,
unsigned long event,
void* clientdata,
void* calldata);
void SetMouseCursor(int state);
//BTX
enum WidgetStates
{
NoLine = 0,
MovingH1AndV1,
MovingH2AndV1,
MovingH1AndV2,
MovingH2AndV2,
MovingV1,
MovingV2,
MovingH1,
MovingH2
};
//ETX
int ComputeWorldCoordinate(int x, int y, double* coord);
void UpdateOpacity();
void UpdateGeometry();
void ConstrainPlanePositions(double positions[6]);
private:
vtkImageCroppingRegionsWidget(const vtkImageCroppingRegionsWidget&); //Not implemented
void operator=(const vtkImageCroppingRegionsWidget&); //Not implemented
};
#endif