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107 lines
3.5 KiB
C++
107 lines
3.5 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkFocalPlaneContourRepresentation.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkFocalPlaneContourRepresentation
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* @brief represent a contour drawn on the
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* focal plane.
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*
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*
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* The contour will stay on the focal plane irrespective of camera
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* position/orientation changes. The class was written in order to be able to
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* draw contours on a volume widget and have the contours overlaid on the
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* focal plane in order to do contour segmentation. The superclass,
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* vtkContourRepresentation handles contours that are drawn in actual world
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* position co-ordinates, so they would rotate with the camera position/
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* orientation changes
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*
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* @sa
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* vtkContourWidget vtkHandleRepresentation vtkContourRepresentation
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*/
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#ifndef vtkFocalPlaneContourRepresentation_h
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#define vtkFocalPlaneContourRepresentation_h
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#include "vtkContourRepresentation.h"
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#include "vtkInteractionWidgetsModule.h" // For export macro
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class vtkHandleRepresentation;
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class VTKINTERACTIONWIDGETS_EXPORT vtkFocalPlaneContourRepresentation
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: public vtkContourRepresentation
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{
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public:
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//@{
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/**
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* Standard VTK methods.
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*/
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vtkTypeMacro(vtkFocalPlaneContourRepresentation, vtkContourRepresentation);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@}
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/**
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* Get the world position of the intermediate point at
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* index idx between nodes n and (n+1) (or n and 0 if
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* n is the last node and the loop is closed). Returns
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* 1 on success or 0 if n or idx are out of range.
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*/
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int GetIntermediatePointWorldPosition(int n, int idx, double point[3]) override;
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/**
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* Get the world position of the intermediate point at
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* index idx between nodes n and (n+1) (or n and 0 if
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* n is the last node and the loop is closed). Returns
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* 1 on success or 0 if n or idx are out of range.
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*/
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virtual int GetIntermediatePointDisplayPosition(int n, int idx, double point[3]);
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/**
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* Get the nth node's display position. Will return
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* 1 on success, or 0 if there are not at least
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* (n+1) nodes (0 based counting).
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*/
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int GetNthNodeDisplayPosition(int n, double pos[2]) override;
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/**
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* Get the nth node's world position. Will return
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* 1 on success, or 0 if there are not at least
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* (n+1) nodes (0 based counting).
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*/
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int GetNthNodeWorldPosition(int n, double pos[3]) override;
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/**
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* The class maintains its true contour locations based on display co-ords
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* This method syncs the world co-ords data structure with the display co-ords.
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*/
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virtual void UpdateContourWorldPositionsBasedOnDisplayPositions();
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/**
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* The method must be called whenever the contour needs to be updated, usually
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* from RenderOpaqueGeometry()
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*/
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int UpdateContour() override;
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void UpdateLines(int index) override;
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protected:
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vtkFocalPlaneContourRepresentation();
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~vtkFocalPlaneContourRepresentation() override;
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private:
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vtkFocalPlaneContourRepresentation(const vtkFocalPlaneContourRepresentation&) = delete;
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void operator=(const vtkFocalPlaneContourRepresentation&) = delete;
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};
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#endif
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