VTK  9.2.6
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 =========================================================================*/
39 #ifndef vtkReduceTable_h
40 #define vtkReduceTable_h
41 
42 #include "vtkInfovisCoreModule.h" // For export macro
43 #include "vtkTableAlgorithm.h"
44 
45 #include <map> // For ivar
46 #include <set> // For ivar
47 #include <vector> // For ivar
48 
49 class vtkVariant;
50 
51 class VTKINFOVISCORE_EXPORT vtkReduceTable : public vtkTableAlgorithm
52 {
53 public:
54  static vtkReduceTable* New();
56  void PrintSelf(ostream& os, vtkIndent indent) override;
57 
59 
64  vtkGetMacro(IndexColumn, vtkIdType);
65  vtkSetMacro(IndexColumn, vtkIdType);
67 
69 
73  vtkGetMacro(NumericalReductionMethod, int);
74  vtkSetMacro(NumericalReductionMethod, int);
76 
78 
82  vtkGetMacro(NonNumericalReductionMethod, int);
83  vtkSetMacro(NonNumericalReductionMethod, int);
85 
92 
97  void SetReductionMethodForColumn(vtkIdType col, int method);
98 
102  enum
103  {
106  MODE
107  };
108 
109 protected:
111  ~vtkReduceTable() override;
112 
114 
119  void InitializeOutputTable(vtkTable* input, vtkTable* output);
120 
126 
131 
137  void PopulateDataColumn(vtkTable* input, vtkTable* output, vtkIdType col);
138 
143  void ReduceValuesToMean(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
144  std::vector<vtkIdType> oldRows);
145 
150  void ReduceValuesToMedian(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
151  std::vector<vtkIdType> oldRows);
152 
157  void ReduceValuesToMode(vtkTable* input, vtkTable* output, vtkIdType row, vtkIdType col,
158  std::vector<vtkIdType> oldRows);
159 
161  std::set<vtkVariant> IndexValues;
162  std::map<vtkVariant, std::vector<vtkIdType>> NewRowToOldRowsMap;
163  std::map<vtkIdType, int> ColumnReductionMethods;
164 
167 
168 private:
169  vtkReduceTable(const vtkReduceTable&) = delete;
170  void operator=(const vtkReduceTable&) = delete;
171 };
172 
173 #endif
a simple class to control print indentation
Definition: vtkIndent.h:119
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
combine some of the rows of a table
int GetReductionMethodForColumn(vtkIdType col)
Get the method that should be used to combine the values within the specified column.
std::map< vtkIdType, int > ColumnReductionMethods
static vtkReduceTable * New()
int NumericalReductionMethod
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
int NonNumericalReductionMethod
std::map< vtkVariant, std::vector< vtkIdType > > NewRowToOldRowsMap
void AccumulateIndexValues(vtkTable *input)
Find the distinct values in the input table's index column.
void SetReductionMethodForColumn(vtkIdType col, int method)
Set the method that should be used to combine the values within the specified column.
void ReduceValuesToMedian(vtkTable *input, vtkTable *output, vtkIdType row, vtkIdType col, std::vector< vtkIdType > oldRows)
Find the median of a series of values from the input table and store it in the output table.
~vtkReduceTable() override
void ReduceValuesToMean(vtkTable *input, vtkTable *output, vtkIdType row, vtkIdType col, std::vector< vtkIdType > oldRows)
Find the mean of a series of values from the input table and store it in the output table.
void ReduceValuesToMode(vtkTable *input, vtkTable *output, vtkIdType row, vtkIdType col, std::vector< vtkIdType > oldRows)
Find the mode of a series of values from the input table and store it in the output table.
std::set< vtkVariant > IndexValues
void PopulateDataColumn(vtkTable *input, vtkTable *output, vtkIdType col)
Populate a non-index column of the output table.
vtkIdType IndexColumn
void PopulateIndexColumn(vtkTable *output)
Populate the index column of the output table.
void InitializeOutputTable(vtkTable *input, vtkTable *output)
Initialize the output table to have the same types of columns as the input table, but no rows.
Superclass for algorithms that produce only vtkTables as output.
A table, which contains similar-typed columns of data.
Definition: vtkTable.h:183
A atomic type representing the union of many types.
Definition: vtkVariant.h:149
int vtkIdType
Definition: vtkType.h:332