vtkShellBinIterator.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkShellBinIterator_h
#define vtkShellBinIterator_h

#include "vtkFiltersMeshingModule.h" // For export macro
#include "vtkLocatorInterface.h"     // for array of (pt,d**2) tuples
#include "vtkSystemIncludes.h"

VTK_ABI_NAMESPACE_BEGIN

class vtkStaticPointLocator;
class vtkDoubleArray;
struct InternalShellBinIterator;

// A simple dispatch mechanism to internal, templated classes.
VTK_WRAPEXCLUDE struct VTKFILTERSMESHING_EXPORT vtkShellBinIteratorDispatch
{
  bool LargeIds;
  InternalShellBinIterator* Iterator;

  vtkShellBinIteratorDispatch()
    : LargeIds(false)
    , Iterator(nullptr)
  {
  }
  vtkShellBinIteratorDispatch(vtkStaticPointLocator* loc) { this->Initialize(loc); }
  void Initialize(vtkStaticPointLocator* locator);
  bool Begin(vtkIdType pid, double x[3], vtkDist2TupleArray& results);
  bool Next(double radius2, vtkDoubleArray* spheres, vtkDist2TupleArray& results);
  vtkIdType GetBinId();
  void GetBin(int IJK[3]);
  double GetMinD2();
}; // vtkShellBinIteratorDispatch

// VTK class proper
class VTKFILTERSMESHING_EXPORT vtkShellBinIterator
{
public:
  vtkShellBinIterator() = default;

  vtkShellBinIterator(vtkStaticPointLocator* loc)
    : Dispatch(loc)
  {
  }

  void Initialize(vtkStaticPointLocator* locator) { this->Dispatch.Initialize(locator); }

  bool Begin(vtkIdType ptId, double x[3], vtkDist2TupleArray& results)
  {
    return this->Dispatch.Begin(ptId, x, results);
  }

  bool Next(double radius2, vtkDoubleArray* spheres, vtkDist2TupleArray& results)
  {
    return this->Dispatch.Next(radius2, spheres, results);
  }

  vtkIdType GetBinId() { return this->Dispatch.GetBinId(); }

  void GetBin(int IJK[3]) { this->Dispatch.GetBin(IJK); }

  double GetMinD2() { return this->Dispatch.GetMinD2(); }

private:
  // Used to dispatch to the internally instantiated templated classes.
  vtkShellBinIteratorDispatch Dispatch;
};

VTK_ABI_NAMESPACE_END

#endif
// VTK-HeaderTest-Exclude: vtkShellBinIterator.h