VTK  9.0.1
vtkReduceTable.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkReduceTable.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
36 #ifndef vtkReduceTable_h
37 #define vtkReduceTable_h
38 
39 #include "vtkInfovisCoreModule.h" // For export macro
40 #include "vtkTableAlgorithm.h"
41 
42 #include <map> // For ivar
43 #include <set> // For ivar
44 #include <vector> // For ivar
45 
46 class vtkVariant;
47 
48 class VTKINFOVISCORE_EXPORT vtkReduceTable : public vtkTableAlgorithm
49 {
50 public:
51  static vtkReduceTable* New();
53  void PrintSelf(ostream& os, vtkIndent indent) override;
54 
56 
61  vtkGetMacro(IndexColumn, vtkIdType);
62  vtkSetMacro(IndexColumn, vtkIdType);
64 
66 
70  vtkGetMacro(NumericalReductionMethod, int);
71  vtkSetMacro(NumericalReductionMethod, int);
73 
75 
79  vtkGetMacro(NonNumericalReductionMethod, int);
80  vtkSetMacro(NonNumericalReductionMethod, int);
82 
88  int GetReductionMethodForColumn(vtkIdType col);
89 
94  void SetReductionMethodForColumn(vtkIdType col, int method);
95 
99  enum
100  {
103  MODE
104  };
105 
106 protected:
107  vtkReduceTable();
108  ~vtkReduceTable() override;
109 
111 
116  void InitializeOutputTable(vtkTable* input, vtkTable* output);
117 
122  void AccumulateIndexValues(vtkTable* input);
123 
127  void PopulateIndexColumn(vtkTable* output);
128 
134  void PopulateDataColumn(vtkTable* input, vtkTable* output, vtkIdType col);
135 
140  void ReduceValuesToMean(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
141  std::vector<vtkIdType> oldRows);
142 
147  void ReduceValuesToMedian(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
148  std::vector<vtkIdType> oldRows);
149 
154  void ReduceValuesToMode(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
155  std::vector<vtkIdType> oldRows);
156 
158  std::set<vtkVariant> IndexValues;
159  std::map<vtkVariant, std::vector<vtkIdType> > NewRowToOldRowsMap;
160  std::map<vtkIdType, int> ColumnReductionMethods;
161 
164 
165 private:
166  vtkReduceTable(const vtkReduceTable&) = delete;
167  void operator=(const vtkReduceTable&) = delete;
168 };
169 
170 #endif
std::set< vtkVariant > IndexValues
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
static vtkTableAlgorithm * New()
Store vtkAlgorithm input/output information.
int vtkIdType
Definition: vtkType.h:338
A atomic type representing the union of many types.
Definition: vtkVariant.h:65
std::map< vtkVariant, std::vector< vtkIdType > > NewRowToOldRowsMap
std::map< vtkIdType, int > ColumnReductionMethods
a simple class to control print indentation
Definition: vtkIndent.h:33
A table, which contains similar-typed columns of data.
Definition: vtkTable.h:62
virtual int RequestData(vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
This is called by the superclass.
Superclass for algorithms that produce only vtkTables as output.
Store zero or more vtkInformation instances.
int NonNumericalReductionMethod
vtkIdType IndexColumn
combine some of the rows of a table
int NumericalReductionMethod