VTK  9.0.20210624
vtkExtractSelection.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkExtractSelection.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 =========================================================================*/
35 #ifndef vtkExtractSelection_h
36 #define vtkExtractSelection_h
37 
38 #include "vtkDataObjectAlgorithm.h"
39 #include "vtkFiltersExtractionModule.h" // For export macro
40 
41 #include "vtkSelectionNode.h" // for vtkSelectionNode::SelectionContent
42 #include "vtkSmartPointer.h" // for smart pointer
43 
44 class vtkSignedCharArray;
45 class vtkSelection;
46 class vtkSelectionNode;
47 class vtkSelector;
49 class vtkTable;
50 
51 class VTKFILTERSEXTRACTION_EXPORT vtkExtractSelection : public vtkDataObjectAlgorithm
52 {
53 public:
56  void PrintSelf(ostream& os, vtkIndent indent) override;
57 
63  {
64  this->SetInputConnection(1, algOutput);
65  }
66 
68 
73  vtkSetMacro(PreserveTopology, bool);
74  vtkGetMacro(PreserveTopology, bool);
75  vtkBooleanMacro(PreserveTopology, bool);
77 
78 protected:
81 
86  vtkInformationVector* outputVector) override;
90  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
91  vtkInformationVector* outputVector) override;
92 
93  // Gets the attribute association of the selection. Currently we support ROW, POINT, and CELL.
94  // If the selection types are mismatched the boolean parameter will be set to false, otherwise
95  // it will be true after the function returns.
97 
104 
113  vtkDataObject::AttributeTypes elementType, vtkSignedCharArray* insidednessArray);
114 
116 
122  vtkDataSet* input, vtkUnstructuredGrid* output, vtkSignedCharArray* cellInside);
129  vtkDataSet* input, vtkUnstructuredGrid* output, vtkSignedCharArray* pointInside);
134  void ExtractSelectedRows(vtkTable* input, vtkTable* output, vtkSignedCharArray* rowsInside);
135 
136  bool PreserveTopology = false;
137 
138 private:
139  vtkExtractSelection(const vtkExtractSelection&) = delete;
140  void operator=(const vtkExtractSelection&) = delete;
141 };
142 
143 #endif
vtkExtractSelection::RequestDataObject
int RequestDataObject(vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override
Sets up empty output dataset.
vtkExtractSelection::PrintSelf
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkSelectionNode
A node in a selection tree.
Definition: vtkSelectionNode.h:64
vtkExtractSelection::ExtractElements
vtkSmartPointer< vtkDataObject > ExtractElements(vtkDataObject *block, vtkDataObject::AttributeTypes elementType, vtkSignedCharArray *insidednessArray)
Given a non-composite input data object (either a block of a larger composite or the whole input),...
vtkX3D::type
@ type
Definition: vtkX3D.h:522
vtkExtractSelection::vtkExtractSelection
vtkExtractSelection()
vtkInformationVector
Store zero or more vtkInformation instances.
Definition: vtkInformationVector.h:36
vtkTable
A table, which contains similar-typed columns of data.
Definition: vtkTable.h:63
vtkExtractSelection::ExtractSelectedRows
void ExtractSelectedRows(vtkTable *input, vtkTable *output, vtkSignedCharArray *rowsInside)
Given an input vtkTable and an array of which rows to extract, this populates the output table with t...
vtkDataObjectAlgorithm
Superclass for algorithms that produce only data object as output.
Definition: vtkDataObjectAlgorithm.h:44
vtkExtractSelection
extract a subset from a vtkDataSet.
Definition: vtkExtractSelection.h:52
vtkSmartPointer
Hold a reference to a vtkObjectBase instance.
Definition: vtkSmartPointer.h:36
vtkExtractSelection::ExtractSelectedCells
void ExtractSelectedCells(vtkDataSet *input, vtkUnstructuredGrid *output, vtkSignedCharArray *cellInside)
Given a vtkDataSet and an array of which cells to extract, this populates the given vtkUnstructuredGr...
vtkExtractSelection::~vtkExtractSelection
~vtkExtractSelection() override
vtkSignedCharArray
dynamic, self-adjusting array of signed char
Definition: vtkSignedCharArray.h:36
vtkSelection
data object that represents a "selection" in VTK.
Definition: vtkSelection.h:58
vtkSelectionNode::SelectionContent
SelectionContent
Indicate the means by which data is selected.
Definition: vtkSelectionNode.h:130
vtkSelector
Definition: vtkSelector.h:41
vtkX3D::port
@ port
Definition: vtkX3D.h:453
vtkSelectionNode.h
vtkExtractSelection::RequestData
int RequestData(vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override
Sets up empty output dataset.
vtkExtractSelection::New
static vtkExtractSelection * New()
vtkExtractSelection::ExtractSelectedPoints
void ExtractSelectedPoints(vtkDataSet *input, vtkUnstructuredGrid *output, vtkSignedCharArray *pointInside)
Given a vtkDataSet and an array of which points to extract, the populates the given vtkUnstructuredGr...
vtkIndent
a simple class to control print indentation
Definition: vtkIndent.h:34
vtkSmartPointer.h
vtkExtractSelection::SetSelectionConnection
void SetSelectionConnection(vtkAlgorithmOutput *algOutput)
Convenience method to specify the selection connection (2nd input port)
Definition: vtkExtractSelection.h:62
vtkExtractSelection::GetAttributeTypeOfSelection
vtkDataObject::AttributeTypes GetAttributeTypeOfSelection(vtkSelection *sel, bool &sane)
vtkDataSet
abstract class to specify dataset behavior
Definition: vtkDataSet.h:57
vtkAlgorithm::SetInputConnection
virtual void SetInputConnection(int port, vtkAlgorithmOutput *input)
Set the connection for the given input port index.
vtkInformation
Store vtkAlgorithm input/output information.
Definition: vtkInformation.h:74
vtkExtractSelection::FillInputPortInformation
int FillInputPortInformation(int port, vtkInformation *info) override
Fill the input port information objects for this algorithm.
vtkX3D::info
@ info
Definition: vtkX3D.h:382
vtkAlgorithmOutput
Proxy object to connect input/output ports.
Definition: vtkAlgorithmOutput.h:37
vtkUnstructuredGrid
dataset represents arbitrary combinations of all possible cell types
Definition: vtkUnstructuredGrid.h:94
vtkDataObjectAlgorithm.h
vtkDataObject
general representation of visualization data
Definition: vtkDataObject.h:60
vtkDataObject::AttributeTypes
AttributeTypes
Possible attribute types.
Definition: vtkDataObject.h:264
vtkExtractSelection::NewSelectionOperator
virtual vtkSmartPointer< vtkSelector > NewSelectionOperator(vtkSelectionNode::SelectionContent type)
Creates a new vtkSelector for the given content type.