vtkOTDensityMap.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOTDensityMap.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 vtkOTDensityMap_h
#define vtkOTDensityMap_h
 
#include "vtkContourValues.h"          // For Contour Values
#include "vtkFiltersOpenTURNSModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
#include "vtkSmartPointer.h" // For Smart Pointer
 
#include <map> // For map
 
class vtkIdList;
class vtkInformationDoubleKey;
class vtkPolyData;
class vtkTable;
 
class VTKFILTERSOPENTURNS_EXPORT vtkOTDensityMap : public vtkMultiBlockDataSetAlgorithm
{
public:
  static vtkOTDensityMap* New();
  vtkTypeMacro(vtkOTDensityMap, vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  vtkMTimeType GetMTime() override;
 
 
  void SetValue(int i, double value);
 
  double GetValue(int i);
 
  double* GetValues();
 
  void GetValues(double* contourValues);
 
  void SetNumberOfContours(int number);
 
  int GetNumberOfContours();
 
 
  void SetGridSubdivisions(int gridSubdivisions);
  vtkGetMacro(GridSubdivisions, int);
 
 
  vtkGetMacro(ContourApproximationNumberOfPoints, int);
  virtual void SetContourApproximationNumberOfPoints(int val);
 
  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int port, vtkInformation* info) override;
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
 
  static vtkInformationDoubleKey* DENSITY();
 
protected:
  vtkOTDensityMap();
  ~vtkOTDensityMap() override;
 
  virtual vtkIdType FindNextCellId(vtkPolyData* pd, vtkIdType cellId, vtkIdType previousCellId,
    bool& invertedPoints, bool up = true, vtkIdList* currentPointIndices = nullptr);
 
  void ClearCache();
  void BuildContours(vtkPolyData* contourPd, int numContours, const double* contourValues,
    const double* densityPDFContourValues, const char* xArrayName, const char* yArrayName,
    std::multimap<double, vtkSmartPointer<vtkTable>>& contoursMap);
 
  // Cache
  class OTDensityCache;
  class OTDistributionCache;
  OTDensityCache* DensityPDFCache;
  OTDensityCache* DensityLogPDFSampleCache;
  OTDistributionCache* DistributionCache;
 
  vtkTimeStamp BuildTime;                // Keep track of last build time
  vtkTimeStamp DensityLogPDFSampleMTime; // Keep track of DensityLogPDFSample Parameters mtime
  vtkTimeStamp DensityPDFMTime;          // Keep track of DensityPDF Parameters modification time
 
  vtkContourValues* ContourValues;
  int GridSubdivisions;
  int ContourApproximationNumberOfPoints;
 
private:
  void operator=(const vtkOTDensityMap&) = delete;
  vtkOTDensityMap(const vtkOTDensityMap&) = delete;
};
#endif