vtkThresholdPoints.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkThresholdPoints_h
#define vtkThresholdPoints_h
 
#include "vtkDeprecation.h"
#include "vtkFiltersCoreModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
 
VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSCORE_EXPORT VTK_MARSHALAUTO vtkThresholdPoints : public vtkPolyDataAlgorithm
{
public:
  static vtkThresholdPoints* New();
  vtkTypeMacro(vtkThresholdPoints, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  enum ThresholdType
  {
    THRESHOLD_BETWEEN = 0,
    THRESHOLD_LOWER,
    THRESHOLD_UPPER
  };


  void SetThresholdFunction(int function);
  int GetThresholdFunction();


  vtkSetMacro(UpperThreshold, double);
  vtkGetMacro(UpperThreshold, double);
  vtkSetMacro(LowerThreshold, double);
  vtkGetMacro(LowerThreshold, double);


  vtkSetMacro(InputArrayComponent, int);
  vtkGetMacro(InputArrayComponent, int);


  vtkSetMacro(OutputPointsPrecision, int);
  vtkGetMacro(OutputPointsPrecision, int);
 
protected:
  vtkThresholdPoints();
  ~vtkThresholdPoints() override = default;
 
  // Usual data generation method
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  double LowerThreshold = -std::numeric_limits<double>::infinity();
  double UpperThreshold = std::numeric_limits<double>::infinity();
  int InputArrayComponent = 0;
  int OutputPointsPrecision = DEFAULT_PRECISION;
 
  int (vtkThresholdPoints::*ThresholdFunction)(double s) = &vtkThresholdPoints::Between;
 
  int Lower(double s) { return (s <= this->LowerThreshold ? 1 : 0); }
  int Upper(double s) { return (s >= this->UpperThreshold ? 1 : 0); }
  int Between(double s)
  {
    return ((s >= this->LowerThreshold && s <= this->UpperThreshold) ? 1 : 0);
  }
 
private:
  vtkThresholdPoints(const vtkThresholdPoints&) = delete;
  void operator=(const vtkThresholdPoints&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif