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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPointSource.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 vtkPointSource
* @brief create a random cloud of points
*
* vtkPointSource is a source object that creates a user-specified number
* of points within a specified radius about a specified center point.
* By default location of the points is random within the sphere. It is
* also possible to generate random points only on the surface of the
* sphere. The output PolyData has the specified number of points and
* 1 cell - a vtkPolyVertex containing all of the points.
*/
#ifndef vtkPointSource_h
#define vtkPointSource_h
#include "vtkFiltersSourcesModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#define VTK_POINT_UNIFORM 1
#define VTK_POINT_SHELL 0
class vtkRandomSequence;
class VTKFILTERSSOURCES_EXPORT vtkPointSource : public vtkPolyDataAlgorithm
{
public:
static vtkPointSource *New();
vtkTypeMacro(vtkPointSource,vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
//@{
/**
* Set the number of points to generate.
*/
vtkSetClampMacro(NumberOfPoints,vtkIdType,1,VTK_ID_MAX);
vtkGetMacro(NumberOfPoints,vtkIdType);
//@}
//@{
/**
* Set the center of the point cloud.
*/
vtkSetVector3Macro(Center,double);
vtkGetVectorMacro(Center,double,3);
//@}
//@{
/**
* Set the radius of the point cloud. If you are
* generating a Gaussian distribution, then this is
* the standard deviation for each of x, y, and z.
*/
vtkSetClampMacro(Radius,double,0.0,VTK_DOUBLE_MAX);
vtkGetMacro(Radius,double);
//@}
//@{
/**
* Specify the distribution to use. The default is a
* uniform distribution. The shell distribution produces
* random points on the surface of the sphere, none in the interior.
*/
vtkSetMacro(Distribution,int);
void SetDistributionToUniform() {
this->SetDistribution(VTK_POINT_UNIFORM);};
void SetDistributionToShell() {
this->SetDistribution(VTK_POINT_SHELL);};
vtkGetMacro(Distribution,int);
//@}
//@{
/**
* Set/get the desired precision for the output points.
* vtkAlgorithm::SINGLE_PRECISION - Output single-precision floating point.
* vtkAlgorithm::DOUBLE_PRECISION - Output double-precision floating point.
*/
vtkSetMacro(OutputPointsPrecision,int);
vtkGetMacro(OutputPointsPrecision,int);
//@}
//@{
/**
* Set/Get a random sequence generator.
* By default, the generator in vtkMath is used to maintain backwards
* compatibility.
*/
virtual void SetRandomSequence(vtkRandomSequence *randomSequence);
vtkGetObjectMacro(RandomSequence,vtkRandomSequence);
//@}
protected:
vtkPointSource(vtkIdType numPts=10);
~vtkPointSource() VTK_OVERRIDE;
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
double Random();
vtkIdType NumberOfPoints;
double Center[3];
double Radius;
int Distribution;
int OutputPointsPrecision;
vtkRandomSequence* RandomSequence;
private:
vtkPointSource(const vtkPointSource&) VTK_DELETE_FUNCTION;
void operator=(const vtkPointSource&) VTK_DELETE_FUNCTION;
};
#endif
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