vtkSphere.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkSphere.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.
 
=========================================================================*/
#ifndef vtkSphere_h
#define vtkSphere_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
 
class VTKCOMMONDATAMODEL_EXPORT vtkSphere : public vtkImplicitFunction
{
public:
  vtkTypeMacro(vtkSphere, vtkImplicitFunction);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  static vtkSphere* New();
 
 
  using vtkImplicitFunction::EvaluateFunction;
  double EvaluateFunction(double x[3]) override;
 
  void EvaluateGradient(double x[3], double n[3]) override;
 
 
  vtkSetMacro(Radius, double);
  vtkGetMacro(Radius, double);
 
 
  vtkSetVector3Macro(Center, double);
  vtkGetVectorMacro(Center, double, 3);
 
  static double Evaluate(double center[3], double R, double x[3])
  {
    return (x[0] - center[0]) * (x[0] - center[0]) + (x[1] - center[1]) * (x[1] - center[1]) +
      (x[2] - center[2]) * (x[2] - center[2]) - R * R;
  }
 
 
  static void ComputeBoundingSphere(
    float* pts, vtkIdType numPts, float sphere[4], vtkIdType hints[2]);
  static void ComputeBoundingSphere(
    double* pts, vtkIdType numPts, double sphere[4], vtkIdType hints[2]);
 
 
  static void ComputeBoundingSphere(
    float** spheres, vtkIdType numSpheres, float sphere[4], vtkIdType hints[2]);
  static void ComputeBoundingSphere(
    double** spheres, vtkIdType numSpheres, double sphere[4], vtkIdType hints[2]);
 
protected:
  vtkSphere();
  ~vtkSphere() override = default;
 
  double Radius;
  double Center[3];
 
private:
  vtkSphere(const vtkSphere&) = delete;
  void operator=(const vtkSphere&) = delete;
};
 
#endif