VTK
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extract polygonal data based on geometric connectivity More...
#include <vtkPolyDataConnectivityFilter.h>
Inherits vtkPolyDataAlgorithm.
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typedef vtkPolyDataAlgorithm | Superclass |
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static int | IsTypeOf (const char *type) |
static vtkPolyDataConnectivityFilter * | SafeDownCast (vtkObjectBase *o) |
static vtkPolyDataConnectivityFilter * | New () |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkPolyDataConnectivityFilter () | |
~vtkPolyDataConnectivityFilter () | |
int | RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
int | IsScalarConnected (vtkIdType cellId) |
void | TraverseAndMark () |
Protected Attributes | |
int | ColorRegions |
int | ExtractionMode |
vtkIdList * | Seeds |
vtkIdList * | SpecifiedRegionIds |
vtkIdTypeArray * | RegionSizes |
double | ClosestPoint [3] |
int | ScalarConnectivity |
int | FullScalarConnectivity |
double | ScalarRange [2] |
vtkDataArray * | CellScalars |
vtkIdList * | NeighborCellPointIds |
vtkIdType * | Visited |
vtkIdType * | PointMap |
vtkDataArray * | NewScalars |
vtkIdType | RegionNumber |
vtkIdType | PointNumber |
vtkIdType | NumCellsInRegion |
vtkDataArray * | InScalars |
vtkPolyData * | Mesh |
vtkIdList * | Wave |
vtkIdList * | Wave2 |
vtkIdList * | PointIds |
vtkIdList * | CellIds |
vtkIdList * | VisitedPointIds |
int | MarkVisitedPointIds |
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 (most points) 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 the cell's points falls in the scalar range specified. If ScalarConnectivity and FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.
This use of ScalarConnectivity is particularly useful for selecting cells for later processing.
Definition at line 69 of file vtkPolyDataConnectivityFilter.h.
typedef vtkPolyDataAlgorithm vtkPolyDataConnectivityFilter::Superclass |
Definition at line 72 of file vtkPolyDataConnectivityFilter.h.
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vtkPolyDataConnectivityFilter* vtkPolyDataConnectivityFilter::NewInstance | ( | ) | const |
void vtkPolyDataConnectivityFilter::PrintSelf | ( | ostream & | os, |
vtkIndent | indent | ||
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Obtain the array containing the region sizes of the extracted regions
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Construct with default extraction mode to extract largest regions.
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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.
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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.
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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.
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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.
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Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.
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Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.
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Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.
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Turn on/off the use of Fully connected scalar connectivity. This is off by default. The flag is used only if ScalarConnectivity is on. If FullScalarConnectivity is ON, all the cell's points must lie in the scalar range specified for the cell to qualify as being connected. If FullScalarConnectivity is OFF, any one of the cell's points may lie in the user specified scalar range for the cell to qualify as being connected.
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Set the scalar range to use to extract cells based on scalar connectivity.
void vtkPolyDataConnectivityFilter::SetScalarRange | ( | double | [2] | ) |
Set the scalar range to use to extract cells based on scalar connectivity.
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Set the scalar range to use to extract cells based on scalar connectivity.
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Set the scalar range to use to extract cells based on scalar connectivity.
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Set the scalar range to use to extract cells based on scalar connectivity.
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Control the extraction of connected surfaces.
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Control the extraction of connected surfaces.
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Control the extraction of connected surfaces.
Definition at line 118 of file vtkPolyDataConnectivityFilter.h.
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Control the extraction of connected surfaces.
Definition at line 120 of file vtkPolyDataConnectivityFilter.h.
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Control the extraction of connected surfaces.
Definition at line 122 of file vtkPolyDataConnectivityFilter.h.
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Control the extraction of connected surfaces.
Definition at line 124 of file vtkPolyDataConnectivityFilter.h.
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Control the extraction of connected surfaces.
Definition at line 126 of file vtkPolyDataConnectivityFilter.h.
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Control the extraction of connected surfaces.
Definition at line 128 of file vtkPolyDataConnectivityFilter.h.
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Return the method of extraction as a string.
Definition at line 233 of file vtkPolyDataConnectivityFilter.h.
void vtkPolyDataConnectivityFilter::InitializeSeedList | ( | ) |
Initialize list of point ids/cell ids used to seed regions.
void vtkPolyDataConnectivityFilter::AddSeed | ( | int | id | ) |
Add a seed id (point or cell id). Note: ids are 0-offset.
void vtkPolyDataConnectivityFilter::DeleteSeed | ( | int | id | ) |
Delete a seed id (point or cell id). Note: ids are 0-offset.
void vtkPolyDataConnectivityFilter::InitializeSpecifiedRegionList | ( | ) |
Initialize list of region ids to extract.
void vtkPolyDataConnectivityFilter::AddSpecifiedRegion | ( | int | id | ) |
Add a region id to extract. Note: ids are 0-offset.
void vtkPolyDataConnectivityFilter::DeleteSpecifiedRegion | ( | int | id | ) |
Delete a region id to extract. Note: ids are 0-offset.
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point.
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point.
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point.
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Use to specify x-y-z point coordinates when extracting the region closest to a specified point.
int vtkPolyDataConnectivityFilter::GetNumberOfExtractedRegions | ( | ) |
Obtain the number of connected regions.
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Turn on/off the coloring of connected regions.
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Turn on/off the coloring of connected regions.
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Turn on/off the coloring of connected regions.
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Turn on/off the coloring of connected regions.
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Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.
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Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.
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Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.
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Mark visited point ids ? It may be useful to extract the visited point ids for use by a downstream filter. Default is OFF.
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Get the visited point ids. This is valid only if MarkVisitedPointIds has been set.
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Definition at line 189 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 190 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 191 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 192 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 193 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 195 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 197 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 198 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 203 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 208 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 209 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 210 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 211 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 212 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 213 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 214 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 215 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 216 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 217 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 218 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 219 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 220 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 221 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 222 of file vtkPolyDataConnectivityFilter.h.
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Definition at line 224 of file vtkPolyDataConnectivityFilter.h.