vtkPolyDataConnectivityFilter Class Reference
#include <vtkPolyDataConnectivityFilter.h>
Inheritance diagram for vtkPolyDataConnectivityFilter:
[legend]Collaboration diagram for vtkPolyDataConnectivityFilter:
[legend]List of all members.
Detailed Description
extract polygonal data based on geometric connectivity
vtkPolyDataConnectivityFilter is a filter that extracts cells that share common points and/or satisfy a scalar threshold criterion. (Such a group of cells is called a region.) The filter works in one of six ways: 1) extract the largest connected region in the dataset; 2) extract specified region numbers; 3) extract all regions sharing specified point ids; 4) extract all regions sharing specified cell ids; 5) extract the region closest to the specified point; or 6) extract all regions (used to color regions).
This filter is specialized for polygonal data. This means it runs a bit faster and is easier to construct visualization networks that process polygonal data.
The behavior of vtkPolyDataConnectivityFilter can be modified by turning on the boolean ivar ScalarConnectivity. If this flag is on, the connectivity algorithm is modified so that cells are considered connected only if 1) they are geometrically connected (share a point) and 2) the scalar values of one of the cell's points falls in the scalar range specified. This use of ScalarConnectivity is particularly useful for selecting cells for later processing.
- See also:
- vtkConnectivityFilter
- Created by:
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- CVS contributions (if > 5%):
- Schroeder, Will (61%)
- Martin, Ken (17%)
- Lorensen, Bill (6%)
- Law, Charles (5%)
- CVS logs (CVSweb):
/Graphics/vtkPolyDataConnectivityFilter.cxx)/Graphics/vtkPolyDataConnectivityFilter.h)
- Tests:
- vtkPolyDataConnectivityFilter (Tests)
Definition at line 75 of file vtkPolyDataConnectivityFilter.h.
Member Typedef Documentation
Constructor & Destructor Documentation
| vtkPolyDataConnectivityFilter::vtkPolyDataConnectivityFilter |
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Member Function Documentation
| virtual const char* vtkPolyDataConnectivityFilter::GetClassName |
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| int vtkPolyDataConnectivityFilter::IsTypeOf |
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const char * |
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataToPolyDataFilter. |
| virtual int vtkPolyDataConnectivityFilter::IsA |
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const char * |
type |
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
Reimplemented from vtkPolyDataToPolyDataFilter. |
| void vtkPolyDataConnectivityFilter::PrintSelf |
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ostream & |
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vtkIndent |
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from vtkPolyDataToPolyDataFilter. |
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Construct with default extraction mode to extract largest regions.
Reimplemented from vtkAlgorithm. |
| virtual void vtkPolyDataConnectivityFilter::SetScalarConnectivity |
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int |
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. |
| virtual int vtkPolyDataConnectivityFilter::GetScalarConnectivity |
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. |
| virtual void vtkPolyDataConnectivityFilter::ScalarConnectivityOn |
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. |
| virtual void vtkPolyDataConnectivityFilter::ScalarConnectivityOff |
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Turn on/off connectivity based on scalar value. If on, cells are connected only if they share points AND one of the cells scalar values falls in the scalar range specified. |
| virtual void vtkPolyDataConnectivityFilter::SetScalarRange |
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double |
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Set the scalar range to use to extract cells based on scalar connectivity. |
| virtual double* vtkPolyDataConnectivityFilter::GetScalarRange |
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Set the scalar range to use to extract cells based on scalar connectivity. |
| virtual void vtkPolyDataConnectivityFilter::GetScalarRange |
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double |
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Set the scalar range to use to extract cells based on scalar connectivity. |
| virtual void vtkPolyDataConnectivityFilter::SetExtractionMode |
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int |
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Control the extraction of connected surfaces. |
| virtual int vtkPolyDataConnectivityFilter::GetExtractionMode |
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Control the extraction of connected surfaces. |
| void vtkPolyDataConnectivityFilter::SetExtractionModeToPointSeededRegions |
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| void vtkPolyDataConnectivityFilter::SetExtractionModeToCellSeededRegions |
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| void vtkPolyDataConnectivityFilter::SetExtractionModeToLargestRegion |
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| void vtkPolyDataConnectivityFilter::SetExtractionModeToSpecifiedRegions |
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| void vtkPolyDataConnectivityFilter::SetExtractionModeToClosestPointRegion |
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| void vtkPolyDataConnectivityFilter::SetExtractionModeToAllRegions |
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| const char * vtkPolyDataConnectivityFilter::GetExtractionModeAsString |
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| void vtkPolyDataConnectivityFilter::InitializeSeedList |
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Initialize list of point ids/cell ids used to seed regions. |
| void vtkPolyDataConnectivityFilter::AddSeed |
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int |
id |
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Add a seed id (point or cell id). Note: ids are 0-offset. |
| void vtkPolyDataConnectivityFilter::DeleteSeed |
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int |
id |
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Delete a seed id (point or cell id). Note: ids are 0-offset. |
| void vtkPolyDataConnectivityFilter::InitializeSpecifiedRegionList |
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Initialize list of region ids to extract. |
| void vtkPolyDataConnectivityFilter::AddSpecifiedRegion |
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int |
id |
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Add a region id to extract. Note: ids are 0-offset. |
| void vtkPolyDataConnectivityFilter::DeleteSpecifiedRegion |
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int |
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Delete a region id to extract. Note: ids are 0-offset. |
| virtual void vtkPolyDataConnectivityFilter::SetClosestPoint |
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double |
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double |
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point. |
| virtual void vtkPolyDataConnectivityFilter::SetClosestPoint |
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double |
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point. |
| virtual double* vtkPolyDataConnectivityFilter::GetClosestPoint |
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point. |
| virtual void vtkPolyDataConnectivityFilter::GetClosestPoint |
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double |
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point. |
| int vtkPolyDataConnectivityFilter::GetNumberOfExtractedRegions |
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Obtain the number of connected regions. |
| virtual void vtkPolyDataConnectivityFilter::SetColorRegions |
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int |
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Turn on/off the coloring of connected regions. |
| virtual int vtkPolyDataConnectivityFilter::GetColorRegions |
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Turn on/off the coloring of connected regions. |
| virtual void vtkPolyDataConnectivityFilter::ColorRegionsOn |
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Turn on/off the coloring of connected regions. |
| virtual void vtkPolyDataConnectivityFilter::ColorRegionsOff |
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Turn on/off the coloring of connected regions. |
| void vtkPolyDataConnectivityFilter::Execute |
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This method is the old style execute method
Reimplemented from vtkSource. |
| void vtkPolyDataConnectivityFilter::TraverseAndMark |
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Member Data Documentation
The documentation for this class was generated from the following file: