vtkSphere.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkSphere_h
#define vtkSphere_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
 
VTK_ABI_NAMESPACE_BEGIN
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]);


  static void ComputeBoundingSphere(double* pts, vtkIdType numPts, double sphere[4])
  {
    vtkSphere::ComputeBoundingSphere(pts, numPts, sphere, nullptr);
  }
  static void ComputeBoundingSphere(float* pts, vtkIdType numPts, float sphere[4])
  {
    vtkSphere::ComputeBoundingSphere(pts, numPts, sphere, nullptr);
  }



  static void ComputeBoundingSphere(float** spheres, vtkIdType numSpheres, float sphere[4])
  {
    vtkSphere::ComputeBoundingSphere(spheres, numSpheres, sphere, nullptr);
  }
  static void ComputeBoundingSphere(double** spheres, vtkIdType numSpheres, double sphere[4])
  {
    vtkSphere::ComputeBoundingSphere(spheres, numSpheres, sphere, nullptr);
  }

 
protected:
  vtkSphere();
  ~vtkSphere() override = default;
 
  double Radius;
  double Center[3];
 
private:
  vtkSphere(const vtkSphere&) = delete;
  void operator=(const vtkSphere&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif