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Program: Visualization Toolkit
Module: vtkOrientedGlyphFocalPlaneContourRepresentation.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or for details.
This software is distributed WITHOUT ANY WARRANTY; without even
PURPOSE. See the above copyright notice for more information.
// .NAME vtkOrientedGlyphFocalPlaneContourRepresentation - Contours constrained
// to a focal plane.
// .SECTION Description
// This class is used to represent a contour drawn on the focal plane (usually
// overlayed on top of an image or volume widget).
// The class was written in order to be able to draw contours on a volume widget
// and have the contours overlayed on the focal plane in order to do contour
// segmentation.
// .SECTION See Also
// vtkOrientedGlyphContourRepresentation
#ifndef __vtkOrientedGlyphFocalPlaneContourRepresentation_h
#define __vtkOrientedGlyphFocalPlaneContourRepresentation_h
#include "vtkFocalPlaneContourRepresentation.h"
class vtkProperty2D;
class vtkActor2D;
class vtkPolyDataMapper2D;
class vtkPolyData;
class vtkGlyph2D;
class vtkPoints;
class vtkPolyData;
class VTK_WIDGETS_EXPORT vtkOrientedGlyphFocalPlaneContourRepresentation :
public vtkFocalPlaneContourRepresentation
// Description:
// Instantiate this class.
static vtkOrientedGlyphFocalPlaneContourRepresentation *New();
// Description:
// Standard methods for instances of this class.
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Specify the cursor shape. Keep in mind that the shape will be
// aligned with the constraining plane by orienting it such that
// the x axis of the geometry lies along the normal of the plane.
void SetCursorShape(vtkPolyData *cursorShape);
vtkPolyData *GetCursorShape();
// Description:
// Specify the shape of the cursor (handle) when it is active.
// This is the geometry that will be used when the mouse is
// close to the handle or if the user is manipulating the handle.
void SetActiveCursorShape(vtkPolyData *activeShape);
vtkPolyData *GetActiveCursorShape();
// Description:
// This is the property used when the handle is not active
// (the mouse is not near the handle)
// Description:
// This is the property used when the user is interacting
// with the handle.
// Description:
// This is the property used by the lines.
// Description:
// Subclasses of vtkOrientedGlyphFocalPlaneContourRepresentation must implement these methods. These
// are the methods that the widget and its representation use to
// communicate with each other.
virtual void SetRenderer(vtkRenderer *ren);
virtual void BuildRepresentation();
virtual void StartWidgetInteraction(double eventPos[2]);
virtual void WidgetInteraction(double eventPos[2]);
virtual int ComputeInteractionState(int X, int Y, int modified=0);
// Description:
// Methods to make this class behave as a vtkProp.
virtual void GetActors2D(vtkPropCollection *);
virtual void ReleaseGraphicsResources(vtkWindow *);
virtual int RenderOverlay(vtkViewport *viewport);
virtual int RenderOpaqueGeometry(vtkViewport *viewport);
virtual int RenderTranslucentPolygonalGeometry(vtkViewport *viewport);
virtual int HasTranslucentPolygonalGeometry();
// Description:
// Get the points in this contour as a vtkPolyData.
virtual vtkPolyData * GetContourRepresentationAsPolyData();
// Description:
// Direction cosines of the plane on which the contour lies
// on in world co-ordinates. This would be the same matrix that would be
// set in vtkImageReslice or vtkImagePlaneWidget if there were a plane
// passing through the contour points. The origin must be the origin of the
// data under the contour.
vtkMatrix4x4 *GetContourPlaneDirectionCosines(const double origin[3]);
// Render the cursor
vtkActor2D *Actor;
vtkPolyDataMapper2D *Mapper;
vtkGlyph2D *Glypher;
vtkActor2D *ActiveActor;
vtkPolyDataMapper2D *ActiveMapper;
vtkGlyph2D *ActiveGlypher;
vtkPolyData *CursorShape;
vtkPolyData *ActiveCursorShape;
vtkPolyData *FocalData;
vtkPoints *FocalPoint;
vtkPolyData *ActiveFocalData;
vtkPoints *ActiveFocalPoint;
// The polydata represents the contour in display co-ordinates.
vtkPolyData *Lines;
vtkPolyDataMapper2D *LinesMapper;
vtkActor2D *LinesActor;
// The polydata represents the contour in world coordinates. It is updated
// (kept in sync with Lines) every time the GetContourRepresentationAsPolyData()
// method is called.
vtkPolyData *LinesWorldCoordinates;
// Support picking
double LastPickPosition[3];
double LastEventPosition[2];
// Methods to manipulate the cursor
void Translate(double eventPos[2]);
void Scale(double eventPos[2]);
void ShiftContour(double eventPos[2]);
void ScaleContour(double eventPos[2]);
void ComputeCentroid(double* ioCentroid);
// Properties used to control the appearance of selected objects and
// the manipulator in general.
vtkProperty2D *Property;
vtkProperty2D *ActiveProperty;
vtkProperty2D *LinesProperty;
vtkMatrix4x4 *ContourPlaneDirectionCosines;
void CreateDefaultProperties();
// Distance between where the mouse event happens and where the
// widget is focused - maintain this distance during interaction.
double InteractionOffset[2];
void BuildLines();
vtkOrientedGlyphFocalPlaneContourRepresentation(const vtkOrientedGlyphFocalPlaneContourRepresentation&); //Not implemented
void operator=(const vtkOrientedGlyphFocalPlaneContourRepresentation&); //Not implemented