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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImplicitPlaneRepresentation.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.
=========================================================================*/
/**
* @class vtkImplicitPlaneRepresentation
* @brief a class defining the representation for a vtkImplicitPlaneWidget2
*
* This class is a concrete representation for the
* vtkImplicitPlaneWidget2. It represents an infinite plane defined by a
* normal and point in the context of a bounding box. Through interaction
* with the widget, the plane can be manipulated by adjusting the plane
* normal or moving the origin point.
*
* To use this representation, you normally define a (plane) origin and (plane)
* normal. The PlaceWidget() method is also used to initially position the
* representation.
*
* @warning
* This class, and vtkImplicitPlaneWidget2, are next generation VTK
* widgets. An earlier version of this functionality was defined in the
* class vtkImplicitPlaneWidget.
*
* @sa
* vtkImplicitPlaneWidget2 vtkImplicitPlaneWidget
*/
#ifndef vtkImplicitPlaneRepresentation_h
#define vtkImplicitPlaneRepresentation_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkWidgetRepresentation.h"
class vtkActor;
class vtkPolyDataMapper;
class vtkCellPicker;
class vtkConeSource;
class vtkLineSource;
class vtkSphereSource;
class vtkTubeFilter;
class vtkPlane;
class vtkCutter;
class vtkProperty;
class vtkImageData;
class vtkOutlineFilter;
class vtkFeatureEdges;
class vtkPolyData;
class vtkPolyDataAlgorithm;
class vtkTransform;
class vtkBox;
class vtkLookupTable;
class VTKINTERACTIONWIDGETS_EXPORT vtkImplicitPlaneRepresentation : public vtkWidgetRepresentation
{
public:
/**
* Instantiate the class.
*/
static vtkImplicitPlaneRepresentation *New();
//@{
/**
* Standard methods for the class.
*/
vtkTypeMacro(vtkImplicitPlaneRepresentation,vtkWidgetRepresentation);
void PrintSelf(ostream& os, vtkIndent indent);
//@}
//@{
/**
* Get the origin of the plane.
*/
void SetOrigin(double x, double y, double z);
void SetOrigin(double x[3]);
double* GetOrigin();
void GetOrigin(double xyz[3]);
//@}
//@{
/**
* Get the normal to the plane.
*/
void SetNormal(double x, double y, double z);
void SetNormal(double x[3]);
void SetNormalToCamera();
double* GetNormal();
void GetNormal(double xyz[3]);
//@}
//@{
/**
* Force the plane widget to be aligned with one of the x-y-z axes.
* If one axis is set on, the other two will be set off.
* Remember that when the state changes, a ModifiedEvent is invoked.
* This can be used to snap the plane to the axes if it is originally
* not aligned.
*/
void SetNormalToXAxis(int);
vtkGetMacro(NormalToXAxis,int);
vtkBooleanMacro(NormalToXAxis,int);
void SetNormalToYAxis(int);
vtkGetMacro(NormalToYAxis,int);
vtkBooleanMacro(NormalToYAxis,int);
void SetNormalToZAxis(int);
vtkGetMacro(NormalToZAxis,int);
vtkBooleanMacro(NormalToZAxis,int);
//@}
//@{
/**
* If enabled, and a vtkCamera is available through the renderer, then
* LockNormalToCamera will cause the normal to follow the camera's
* normal.
*/
virtual void SetLockNormalToCamera(int);
vtkGetMacro(LockNormalToCamera,int);
vtkBooleanMacro(LockNormalToCamera,int);
//@}
//@{
/**
* Turn on/off tubing of the wire outline of the plane. The tube thickens
* the line by wrapping with a vtkTubeFilter.
*/
vtkSetMacro(Tubing,int);
vtkGetMacro(Tubing,int);
vtkBooleanMacro(Tubing,int);
//@}
//@{
/**
* Enable/disable the drawing of the plane. In some cases the plane
* interferes with the object that it is operating on (i.e., the
* plane interferes with the cut surface it produces producing
* z-buffer artifacts.)
*/
void SetDrawPlane(int plane);
vtkGetMacro(DrawPlane,int);
vtkBooleanMacro(DrawPlane,int);
//@}
//@{
/**
* Turn on/off the ability to translate the bounding box by grabbing it
* with the left mouse button.
*/
vtkSetMacro(OutlineTranslation,int);
vtkGetMacro(OutlineTranslation,int);
vtkBooleanMacro(OutlineTranslation,int);
//@}
//@{
/**
* Turn on/off the ability to move the widget outside of the bounds
* specified in the initial PlaceWidget() invocation.
*/
vtkSetMacro(OutsideBounds,int);
vtkGetMacro(OutsideBounds,int);
vtkBooleanMacro(OutsideBounds,int);
//@}
//@{
/**
* Set/Get the bounds of the widget representation. PlaceWidget can also be
* used to set the bounds of the widget but it may also have other effects
* on the internal state of the represenation. Use this function when only
* the widget bounds are needs to be modified.
*/
vtkSetVector6Macro(WidgetBounds, double);
vtkGetVector6Macro(WidgetBounds, double);
//@}
//@{
/**
* Turn on/off whether the plane should be constrained to the widget bounds.
* If on, the origin will not be allowed to move outside the set widget bounds.
* This is the default behaviour.
* If off, the origin can be freely moved and the widget outline will change
* accordingly.
*/
vtkSetMacro(ConstrainToWidgetBounds,int);
vtkGetMacro(ConstrainToWidgetBounds,int);
vtkBooleanMacro(ConstrainToWidgetBounds,int);
//@}
//@{
/**
* Turn on/off the ability to scale the widget with the mouse.
*/
vtkSetMacro(ScaleEnabled,int);
vtkGetMacro(ScaleEnabled,int);
vtkBooleanMacro(ScaleEnabled,int);
//@}
/**
* Grab the polydata that defines the plane. The polydata contains a single
* polygon that is clipped by the bounding box.
*/
void GetPolyData(vtkPolyData *pd);
/**
* Satisfies superclass API. This returns a pointer to the underlying
* PolyData (which represents the plane).
*/
vtkPolyDataAlgorithm* GetPolyDataAlgorithm();
/**
* Get the implicit function for the plane by copying the origin and normal
* of the cut plane into the provided vtkPlane. The user must provide the
* instance of the class vtkPlane. Note that vtkPlane is a subclass of
* vtkImplicitFunction, meaning that it can be used by a variety of filters
* to perform clipping, cutting, and selection of data.
*/
void GetPlane(vtkPlane *plane);
/**
* Alternative way to define the cutting plane. The normal and origin of
* the plane provided is copied into the internal instance of the class
* cutting vtkPlane.
*/
void SetPlane(vtkPlane *plane);
/**
* Satisfies the superclass API. This will change the state of the widget
* to match changes that have been made to the underlying PolyDataSource
*/
void UpdatePlacement(void);
//@{
/**
* Get the properties on the normal (line and cone).
*/
vtkGetObjectMacro(NormalProperty,vtkProperty);
vtkGetObjectMacro(SelectedNormalProperty,vtkProperty);
//@}
//@{
/**
* Get the plane properties. The properties of the plane when selected
* and unselected can be manipulated.
*/
vtkGetObjectMacro(PlaneProperty,vtkProperty);
vtkGetObjectMacro(SelectedPlaneProperty,vtkProperty);
//@}
//@{
/**
* Get the property of the outline.
*/
vtkGetObjectMacro(OutlineProperty,vtkProperty);
vtkGetObjectMacro(SelectedOutlineProperty,vtkProperty);
//@}
//@{
/**
* Get the property of the intersection edges. (This property also
* applies to the edges when tubed.)
*/
vtkGetObjectMacro(EdgesProperty,vtkProperty);
//@}
//@{
/**
* Set color to the edge
*/
void SetEdgeColor(vtkLookupTable*);
void SetEdgeColor(double, double, double);
void SetEdgeColor(double x[3]);
//@}
//@{
/**
* Specify a translation distance used by the BumpPlane() method. Note that the
* distance is normalized; it is the fraction of the length of the bounding
* box of the wire outline.
*/
vtkSetClampMacro(BumpDistance,double,0.000001,1);
vtkGetMacro(BumpDistance,double);
//@}
/**
* Translate the plane in the direction of the normal by the
* specified BumpDistance. The dir parameter controls which
* direction the pushing occurs, either in the same direction
* as the normal, or when negative, in the opposite direction.
* The factor controls whether what percentage of the bump is
* used.
*/
void BumpPlane(int dir, double factor);
/**
* Push the plane the distance specified along the normal. Positive
* values are in the direction of the normal; negative values are
* in the opposite direction of the normal. The distance value is
* expressed in world coordinates.
*/
void PushPlane(double distance);
//@{
/**
* Methods to interface with the vtkSliderWidget.
*/
virtual int ComputeInteractionState(int X, int Y, int modify=0);
virtual void PlaceWidget(double bounds[6]);
virtual void BuildRepresentation();
virtual void StartWidgetInteraction(double eventPos[2]);
virtual void WidgetInteraction(double newEventPos[2]);
virtual void EndWidgetInteraction(double newEventPos[2]);
//@}
//@{
/**
* Methods supporting the rendering process.
*/
virtual double *GetBounds();
virtual void GetActors(vtkPropCollection *pc);
virtual void ReleaseGraphicsResources(vtkWindow*);
virtual int RenderOpaqueGeometry(vtkViewport*);
virtual int RenderTranslucentPolygonalGeometry(vtkViewport*);
virtual int HasTranslucentPolygonalGeometry();
//@}
// Manage the state of the widget
enum _InteractionState
{
Outside=0,
Moving,
MovingOutline,
MovingOrigin,
Rotating,
Pushing,
Scaling
};
//@{
/**
* The interaction state may be set from a widget (e.g.,
* vtkImplicitPlaneWidget2) or other object. This controls how the
* interaction with the widget proceeds. Normally this method is used as
* part of a handshaking process with the widget: First
* ComputeInteractionState() is invoked that returns a state based on
* geometric considerations (i.e., cursor near a widget feature), then
* based on events, the widget may modify this further.
*/
vtkSetClampMacro(InteractionState,int,Outside,Scaling);
//@}
//@{
/**
* Sets the visual appearance of the representation based on the
* state it is in. This state is usually the same as InteractionState.
*/
virtual void SetRepresentationState(int);
vtkGetMacro(RepresentationState, int);
//@}
protected:
vtkImplicitPlaneRepresentation();
~vtkImplicitPlaneRepresentation();
int RepresentationState;
// Keep track of event positions
double LastEventPosition[3];
// Controlling ivars
int NormalToXAxis;
int NormalToYAxis;
int NormalToZAxis;
// Locking normal to camera
int LockNormalToCamera;
// Controlling the push operation
double BumpDistance;
// The actual plane which is being manipulated
vtkPlane *Plane;
// The bounding box is represented by a single voxel image data
vtkImageData *Box;
vtkOutlineFilter *Outline;
vtkPolyDataMapper *OutlineMapper;
vtkActor *OutlineActor;
void HighlightOutline(int highlight);
int OutlineTranslation; //whether the outline can be moved
int ScaleEnabled; //whether the widget can be scaled
int OutsideBounds; //whether the widget can be moved outside input's bounds
double WidgetBounds[6];
int ConstrainToWidgetBounds;
// The cut plane is produced with a vtkCutter
vtkCutter *Cutter;
vtkPolyDataMapper *CutMapper;
vtkActor *CutActor;
int DrawPlane;
void HighlightPlane(int highlight);
// Optional tubes are represented by extracting boundary edges and tubing
vtkFeatureEdges *Edges;
vtkTubeFilter *EdgesTuber;
vtkPolyDataMapper *EdgesMapper;
vtkActor *EdgesActor;
int Tubing; //control whether tubing is on
// The + normal cone
vtkConeSource *ConeSource;
vtkPolyDataMapper *ConeMapper;
vtkActor *ConeActor;
void HighlightNormal(int highlight);
// The + normal line
vtkLineSource *LineSource;
vtkPolyDataMapper *LineMapper;
vtkActor *LineActor;
// The - normal cone
vtkConeSource *ConeSource2;
vtkPolyDataMapper *ConeMapper2;
vtkActor *ConeActor2;
// The - normal line
vtkLineSource *LineSource2;
vtkPolyDataMapper *LineMapper2;
vtkActor *LineActor2;
// The origin positioning handle
vtkSphereSource *Sphere;
vtkPolyDataMapper *SphereMapper;
vtkActor *SphereActor;
// Do the picking
vtkCellPicker *Picker;
// Register internal Pickers within PickingManager
virtual void RegisterPickers();
// Transform the normal (used for rotation)
vtkTransform *Transform;
// Methods to manipulate the plane
void Rotate(double X, double Y, double *p1, double *p2, double *vpn);
void TranslatePlane(double *p1, double *p2);
void TranslateOutline(double *p1, double *p2);
void TranslateOrigin(double *p1, double *p2);
void Push(double *p1, double *p2);
void Scale(double *p1, double *p2, double X, double Y);
void SizeHandles();
// Properties used to control the appearance of selected objects and
// the manipulator in general.
vtkProperty *NormalProperty;
vtkProperty *SelectedNormalProperty;
vtkProperty *PlaneProperty;
vtkProperty *SelectedPlaneProperty;
vtkProperty *OutlineProperty;
vtkProperty *SelectedOutlineProperty;
vtkProperty *EdgesProperty;
void CreateDefaultProperties();
void GeneratePlane();
// Support GetBounds() method
vtkBox *BoundingBox;
private:
vtkImplicitPlaneRepresentation(const vtkImplicitPlaneRepresentation&) VTK_DELETE_FUNCTION;
void operator=(const vtkImplicitPlaneRepresentation&) VTK_DELETE_FUNCTION;
};
#endif