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vtkPolyDataPointPlacer.h
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vtkPolyDataPointPlacer.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPolyDataPointPlacer.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 vtkPolyDataPointPlacer
* @brief Base class to place points given constraints on polygonal data
*
*
* vtkPolyDataPointPlacer is a base class to place points on the surface of
* polygonal data.
*
* @par Usage:
* The actors that render polygonal data and wish to be considered
* for placement by this placer are added to the list as
* \code
* placer->AddProp( polyDataActor );
* \endcode
*
* @sa
* vtkPolygonalSurfacePointPlacer
*/
#ifndef vtkPolyDataPointPlacer_h
#define vtkPolyDataPointPlacer_h
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkPointPlacer.h"
class vtkRenderer;
class vtkPropCollection;
class vtkProp;
class vtkPropPicker;
class VTKINTERACTIONWIDGETS_EXPORT vtkPolyDataPointPlacer : public vtkPointPlacer
{
public:
/**
* Instantiate this class.
*/
static vtkPolyDataPointPlacer* New();
///@{
/**
* Standard methods for instances of this class.
*/
vtkTypeMacro(vtkPolyDataPointPlacer, vtkPointPlacer);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@}
// Descuription:
// Add an actor (that represents a terrain in a rendererd scene) to the
// list. Only props in this list are considered by the PointPlacer
virtual void AddProp(vtkProp*);
virtual void RemoveViewProp(vtkProp* prop);
virtual void RemoveAllProps();
int HasProp(vtkProp*);
int GetNumberOfProps();
/**
* Given a renderer and a display position in pixel coordinates,
* compute the world position and orientation where this point
* will be placed. This method is typically used by the
* representation to place the point initially.
* For the Terrain point placer this computes world points that
* lie at the specified height above the terrain.
*/
int ComputeWorldPosition(
vtkRenderer* ren, double displayPos[2], double worldPos[3], double worldOrient[9]) override;
/**
* Given a renderer, a display position, and a reference world
* position, compute the new world position and orientation
* of this point. This method is typically used by the
* representation to move the point.
*/
int ComputeWorldPosition(vtkRenderer* ren, double displayPos[2], double refWorldPos[3],
double worldPos[3], double worldOrient[9]) override;
/**
* Given a world position check the validity of this
* position according to the constraints of the placer
*/
int ValidateWorldPosition(double worldPos[3]) override;
/**
* Given a display position, check the validity of this position.
*/
int ValidateDisplayPosition(vtkRenderer*, double displayPos[2]) override;
/**
* Given a world position and a world orientation,
* validate it according to the constraints of the placer.
*/
int ValidateWorldPosition(double worldPos[3], double worldOrient[9]) override;
///@{
/**
* Get the Prop picker.
*/
vtkGetObjectMacro(PropPicker, vtkPropPicker);
///@}
protected:
vtkPolyDataPointPlacer();
~vtkPolyDataPointPlacer() override;
// The props that represents the terrain data (one or more) in a rendered
// scene
vtkPropCollection* SurfaceProps;
vtkPropPicker* PropPicker;
private:
vtkPolyDataPointPlacer(const vtkPolyDataPointPlacer&) = delete;
void operator=(const vtkPolyDataPointPlacer&) = delete;
};
#endif