vtkInterpolateCalculator.h

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

#include "vtkCellAttributeCalculator.h"
#include "vtkFiltersCellGridModule.h" // For export macro.
#include "vtkVector.h"                // For API.

VTK_ABI_NAMESPACE_BEGIN

class vtkDataArray;
class vtkIdTypeArray;

class VTKFILTERSCELLGRID_EXPORT vtkInterpolateCalculator : public vtkCellAttributeCalculator
{
public:
  vtkTypeMacro(vtkInterpolateCalculator, vtkCellAttributeCalculator);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  virtual void Evaluate(vtkIdType cellId, const vtkVector3d& rst, std::vector<double>& value) = 0;

  virtual void Evaluate(vtkIdTypeArray* cellIds, vtkDataArray* rst, vtkDataArray* result) = 0;

  virtual bool AnalyticDerivative() const { return false; }

  virtual void EvaluateDerivative(vtkIdType cellId, const vtkVector3d& rst,
    std::vector<double>& jacobian, double neighborhood = 1e-3);

  virtual void EvaluateDerivative(
    vtkIdTypeArray* cellIds, vtkDataArray* rst, vtkDataArray* result) = 0;

#if 0
  virtual bool IsInside(vtkIdType cellId, const vtkVector3d& rst) = 0;
#endif

protected:
  vtkInterpolateCalculator() = default;
  ~vtkInterpolateCalculator() override = default;

private:
  vtkInterpolateCalculator(const vtkInterpolateCalculator&) = delete;
  void operator=(const vtkInterpolateCalculator&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif // vtkInterpolateCalculator_h