VTK
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generate isosurfaces/isolines from scalar values More...
#include <vtkContourFilter.h>
Public Types | |
typedef vtkPolyDataAlgorithm | Superclass |
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typedef vtkAlgorithm | Superclass |
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typedef vtkObject | Superclass |
enum | DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION } |
Public Member Functions | |
virtual int | IsA (const char *type) |
vtkContourFilter * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
unsigned long | GetMTime () |
void | CreateDefaultLocator () |
void | SetValue (int i, double value) |
double | GetValue (int i) |
double * | GetValues () |
void | GetValues (double *contourValues) |
void | SetNumberOfContours (int number) |
int | GetNumberOfContours () |
void | GenerateValues (int numContours, double range[2]) |
void | GenerateValues (int numContours, double rangeStart, double rangeEnd) |
virtual void | SetComputeNormals (int) |
virtual int | GetComputeNormals () |
virtual void | ComputeNormalsOn () |
virtual void | ComputeNormalsOff () |
virtual void | SetComputeGradients (int) |
virtual int | GetComputeGradients () |
virtual void | ComputeGradientsOn () |
virtual void | ComputeGradientsOff () |
virtual void | SetComputeScalars (int) |
virtual int | GetComputeScalars () |
virtual void | ComputeScalarsOn () |
virtual void | ComputeScalarsOff () |
virtual void | SetUseScalarTree (int) |
virtual int | GetUseScalarTree () |
virtual void | UseScalarTreeOn () |
virtual void | UseScalarTreeOff () |
virtual void | SetScalarTree (vtkScalarTree *) |
virtual vtkScalarTree * | GetScalarTree () |
void | SetLocator (vtkIncrementalPointLocator *locator) |
virtual vtkIncrementalPointLocator * | GetLocator () |
void | SetArrayComponent (int) |
int | GetArrayComponent () |
virtual void | SetGenerateTriangles (int) |
virtual int | GetGenerateTriangles () |
virtual void | GenerateTrianglesOn () |
virtual void | GenerateTrianglesOff () |
virtual int | ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
void | SetOutputPointsPrecision (int precision) |
int | GetOutputPointsPrecision () const |
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vtkPolyDataAlgorithm * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
vtkDataObject * | GetInput () |
vtkDataObject * | GetInput (int port) |
vtkPolyData * | GetPolyDataInput (int port) |
vtkPolyData * | GetOutput () |
vtkPolyData * | GetOutput (int) |
virtual void | SetOutput (vtkDataObject *d) |
void | SetInputData (vtkDataObject *) |
void | SetInputData (int, vtkDataObject *) |
void | AddInputData (vtkDataObject *) |
void | AddInputData (int, vtkDataObject *) |
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vtkAlgorithm * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
int | HasExecutive () |
vtkExecutive * | GetExecutive () |
virtual void | SetExecutive (vtkExecutive *executive) |
virtual int | ModifyRequest (vtkInformation *request, int when) |
vtkInformation * | GetInputPortInformation (int port) |
vtkInformation * | GetOutputPortInformation (int port) |
int | GetNumberOfInputPorts () |
int | GetNumberOfOutputPorts () |
void | UpdateProgress (double amount) |
vtkInformation * | GetInputArrayInformation (int idx) |
void | RemoveAllInputs () |
vtkDataObject * | GetOutputDataObject (int port) |
virtual void | RemoveInputConnection (int port, vtkAlgorithmOutput *input) |
virtual void | RemoveInputConnection (int port, int idx) |
virtual void | RemoveAllInputConnections (int port) |
int | GetNumberOfInputConnections (int port) |
int | GetTotalNumberOfInputConnections () |
vtkAlgorithmOutput * | GetInputConnection (int port, int index) |
vtkAlgorithm * | GetInputAlgorithm (int port, int index, int &algPort) |
vtkAlgorithm * | GetInputAlgorithm (int port, int index) |
vtkExecutive * | GetInputExecutive (int port, int index) |
vtkInformation * | GetInputInformation (int port, int index) |
vtkInformation * | GetOutputInformation (int port) |
virtual void | UpdateInformation () |
virtual void | PropagateUpdateExtent () |
virtual void | UpdateWholeExtent () |
void | ConvertTotalInputToPortConnection (int ind, int &port, int &conn) |
virtual double | ComputePriority () |
int | SetUpdateExtentToWholeExtent (int port) |
int | SetUpdateExtentToWholeExtent () |
void | SetUpdateExtent (int port, int extent[6]) |
int | ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo) |
virtual int | ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, unsigned long *mtime) |
virtual vtkInformation * | GetInformation () |
virtual void | SetInformation (vtkInformation *) |
virtual void | Register (vtkObjectBase *o) |
virtual void | UnRegister (vtkObjectBase *o) |
virtual void | SetAbortExecute (int) |
virtual int | GetAbortExecute () |
virtual void | AbortExecuteOn () |
virtual void | AbortExecuteOff () |
virtual void | SetProgress (double) |
virtual double | GetProgress () |
void | SetProgressText (const char *ptext) |
virtual char * | GetProgressText () |
virtual unsigned long | GetErrorCode () |
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name) |
virtual void | SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType) |
virtual void | SetInputArrayToProcess (int idx, vtkInformation *info) |
virtual void | SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName) |
vtkDataObject * | GetInputDataObject (int port, int connection) |
virtual void | SetInputConnection (int port, vtkAlgorithmOutput *input) |
virtual void | SetInputConnection (vtkAlgorithmOutput *input) |
virtual void | AddInputConnection (int port, vtkAlgorithmOutput *input) |
virtual void | AddInputConnection (vtkAlgorithmOutput *input) |
virtual void | SetInputDataObject (int port, vtkDataObject *data) |
virtual void | SetInputDataObject (vtkDataObject *data) |
virtual void | AddInputDataObject (int port, vtkDataObject *data) |
virtual void | AddInputDataObject (vtkDataObject *data) |
vtkAlgorithmOutput * | GetOutputPort (int index) |
vtkAlgorithmOutput * | GetOutputPort () |
vtkAlgorithm * | GetInputAlgorithm () |
vtkExecutive * | GetInputExecutive () |
vtkInformation * | GetInputInformation () |
virtual void | Update (int port) |
virtual void | Update () |
virtual void | SetReleaseDataFlag (int) |
virtual int | GetReleaseDataFlag () |
void | ReleaseDataFlagOn () |
void | ReleaseDataFlagOff () |
int | UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output) |
int | UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType) |
void | SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel) |
void | SetUpdateExtent (int piece, int numPieces, int ghostLevel) |
void | SetUpdateExtent (int extent[6]) |
int * | GetUpdateExtent () |
int * | GetUpdateExtent (int port) |
void | GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
void | GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1) |
void | GetUpdateExtent (int extent[6]) |
void | GetUpdateExtent (int port, int extent[6]) |
int | GetUpdatePiece () |
int | GetUpdatePiece (int port) |
int | GetUpdateNumberOfPieces () |
int | GetUpdateNumberOfPieces (int port) |
int | GetUpdateGhostLevel () |
int | GetUpdateGhostLevel (int port) |
Static Public Member Functions | |
static int | IsTypeOf (const char *type) |
static vtkContourFilter * | SafeDownCast (vtkObjectBase *o) |
static vtkContourFilter * | New () |
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static vtkPolyDataAlgorithm * | New () |
static int | IsTypeOf (const char *type) |
static vtkPolyDataAlgorithm * | SafeDownCast (vtkObjectBase *o) |
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static vtkAlgorithm * | New () |
static int | IsTypeOf (const char *type) |
static vtkAlgorithm * | SafeDownCast (vtkObjectBase *o) |
static void | SetDefaultExecutivePrototype (vtkExecutive *proto) |
static vtkInformationIntegerKey * | INPUT_IS_OPTIONAL () |
static vtkInformationIntegerKey * | INPUT_IS_REPEATABLE () |
static vtkInformationInformationVectorKey * | INPUT_REQUIRED_FIELDS () |
static vtkInformationStringVectorKey * | INPUT_REQUIRED_DATA_TYPE () |
static vtkInformationInformationVectorKey * | INPUT_ARRAYS_TO_PROCESS () |
static vtkInformationIntegerKey * | INPUT_PORT () |
static vtkInformationIntegerKey * | INPUT_CONNECTION () |
static vtkInformationIntegerKey * | PRESERVES_DATASET () |
static vtkInformationIntegerKey * | PRESERVES_GEOMETRY () |
static vtkInformationIntegerKey * | PRESERVES_BOUNDS () |
static vtkInformationIntegerKey * | PRESERVES_TOPOLOGY () |
static vtkInformationIntegerKey * | PRESERVES_ATTRIBUTES () |
static vtkInformationIntegerKey * | PRESERVES_RANGES () |
static vtkInformationIntegerKey * | MANAGES_METAINFORMATION () |
Protected Member Functions | |
virtual vtkObjectBase * | NewInstanceInternal () const |
vtkContourFilter () | |
~vtkContourFilter () | |
virtual void | ReportReferences (vtkGarbageCollector *) |
virtual int | RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
virtual int | RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *) |
virtual int | FillInputPortInformation (int port, vtkInformation *info) |
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vtkPolyDataAlgorithm () | |
~vtkPolyDataAlgorithm () | |
virtual int | RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) |
virtual int | FillOutputPortInformation (int port, vtkInformation *info) |
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vtkAlgorithm () | |
~vtkAlgorithm () | |
virtual void | SetNumberOfInputPorts (int n) |
virtual void | SetNumberOfOutputPorts (int n) |
int | InputPortIndexInRange (int index, const char *action) |
int | OutputPortIndexInRange (int index, const char *action) |
int | GetInputArrayAssociation (int idx, vtkInformationVector **inputVector) |
virtual vtkExecutive * | CreateDefaultExecutive () |
virtual void | SetNumberOfInputConnections (int port, int n) |
int | GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector) |
int | GetInputArrayAssociation (int idx, vtkDataObject *input) |
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector) |
vtkDataArray * | GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
vtkDataArray * | GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input) |
vtkDataArray * | GetInputArrayToProcess (int idx, vtkDataObject *input, int &association) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input) |
vtkAbstractArray * | GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association) |
vtkInformation * | GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector) |
virtual void | SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input) |
void | SetInputDataInternal (int port, vtkDataObject *input) |
void | AddInputDataInternal (int port, vtkDataObject *input) |
virtual void | SetErrorCode (unsigned long) |
Protected Attributes | |
vtkContourValues * | ContourValues |
int | ComputeNormals |
int | ComputeGradients |
int | ComputeScalars |
vtkIncrementalPointLocator * | Locator |
int | UseScalarTree |
vtkScalarTree * | ScalarTree |
int | OutputPointsPrecision |
int | GenerateTriangles |
vtkSynchronizedTemplates2D * | SynchronizedTemplates2D |
vtkSynchronizedTemplates3D * | SynchronizedTemplates3D |
vtkGridSynchronizedTemplates3D * | GridSynchronizedTemplates |
vtkRectilinearSynchronizedTemplates * | RectilinearSynchronizedTemplates |
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vtkInformation * | Information |
double | Progress |
char * | ProgressText |
unsigned long | ErrorCode |
Additional Inherited Members | |
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int | AbortExecute |
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static vtkInformationIntegerKey * | PORT_REQUIREMENTS_FILLED () |
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static vtkExecutive * | DefaultExecutivePrototype |
generate isosurfaces/isolines from scalar values
vtkContourFilter is a filter that takes as input any dataset and generates on output isosurfaces and/or isolines. The exact form of the output depends upon the dimensionality of the input data. Data consisting of 3D cells will generate isosurfaces, data consisting of 2D cells will generate isolines, and data with 1D or 0D cells will generate isopoints. Combinations of output type are possible if the input dimension is mixed.
To use this filter you must specify one or more contour values. You can either use the method SetValue() to specify each contour value, or use GenerateValues() to generate a series of evenly spaced contours. It is also possible to accelerate the operation of this filter (at the cost of extra memory) by using a vtkScalarTree. A scalar tree is used to quickly locate cells that contain a contour surface. This is especially effective if multiple contours are being extracted. If you want to use a scalar tree, invoke the method UseScalarTreeOn().
Definition at line 67 of file vtkContourFilter.h.
Definition at line 70 of file vtkContourFilter.h.
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Reimplemented from vtkPolyDataAlgorithm.
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Reimplemented from vtkPolyDataAlgorithm.
vtkContourFilter* vtkContourFilter::NewInstance | ( | ) | const |
void vtkContourFilter::PrintSelf | ( | ostream & | os, |
vtkIndent | indent | ||
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Construct object with initial range (0,1) and single contour value of 0.0.
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Methods to set / get contour values.
Set a particular contour value at contour number i. The index i ranges between 0<=i<NumberOfContours.
Definition at line 217 of file vtkContourFilter.h.
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Get the ith contour value.
Definition at line 223 of file vtkContourFilter.h.
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Get a pointer to an array of contour values. There will be GetNumberOfContours() values in the list.
Definition at line 230 of file vtkContourFilter.h.
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Fill a supplied list with contour values. There will be GetNumberOfContours() values in the list. Make sure you allocate enough memory to hold the list.
Definition at line 238 of file vtkContourFilter.h.
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Set the number of contours to place into the list. You only really need to use this method to reduce list size. The method SetValue() will automatically increase list size as needed.
Definition at line 246 of file vtkContourFilter.h.
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Get the number of contours in the list of contour values.
Definition at line 252 of file vtkContourFilter.h.
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.
Definition at line 259 of file vtkContourFilter.h.
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Generate numContours equally spaced contour values between specified range. Contour values will include min/max range values.
Definition at line 266 of file vtkContourFilter.h.
unsigned long vtkContourFilter::GetMTime | ( | ) |
Modified GetMTime Because we delegate to vtkContourValues
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Set/Get the computation of normals. Normal computation is fairly expensive in both time and storage. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of normals. Normal computation is fairly expensive in both time and storage. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of normals. Normal computation is fairly expensive in both time and storage. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of normals. Normal computation is fairly expensive in both time and storage. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of gradients. Gradient computation is fairly expensive in both time and storage. Note that if ComputeNormals is on, gradients will have to be calculated, but will not be stored in the output dataset. If the output data will be processed by filters that modify topology or geometry, it may be wise to turn Normals and Gradients off.
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Set/Get the computation of scalars.
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Set/Get the computation of scalars.
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Set/Get the computation of scalars.
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Set/Get the computation of scalars.
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Enable the use of a scalar tree to accelerate contour extraction.
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Enable the use of a scalar tree to accelerate contour extraction.
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Enable the use of a scalar tree to accelerate contour extraction.
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Enable the use of a scalar tree to accelerate contour extraction.
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Enable the use of a scalar tree to accelerate contour extraction.
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Enable the use of a scalar tree to accelerate contour extraction.
void vtkContourFilter::SetLocator | ( | vtkIncrementalPointLocator * | locator | ) |
Set / get a spatial locator for merging points. By default, an instance of vtkMergePoints is used.
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Set / get a spatial locator for merging points. By default, an instance of vtkMergePoints is used.
void vtkContourFilter::CreateDefaultLocator | ( | ) |
Create default locator. Used to create one when none is specified. The locator is used to merge coincident points.
void vtkContourFilter::SetArrayComponent | ( | int | ) |
Set/get which component of the scalar array to contour on; defaults to 0. Currently this feature only works if the input is a vtkImageData.
int vtkContourFilter::GetArrayComponent | ( | ) |
Set/get which component of the scalar array to contour on; defaults to 0. Currently this feature only works if the input is a vtkImageData.
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If this is enabled (by default), the output will be triangles otherwise, the output will be the intersection polygon WARNING: if the contour surface is not planar, the output polygon will not be planar, which might be nice to look at but hard to compute with downstream.
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If this is enabled (by default), the output will be triangles otherwise, the output will be the intersection polygon WARNING: if the contour surface is not planar, the output polygon will not be planar, which might be nice to look at but hard to compute with downstream.
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If this is enabled (by default), the output will be triangles otherwise, the output will be the intersection polygon WARNING: if the contour surface is not planar, the output polygon will not be planar, which might be nice to look at but hard to compute with downstream.
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If this is enabled (by default), the output will be triangles otherwise, the output will be the intersection polygon WARNING: if the contour surface is not planar, the output polygon will not be planar, which might be nice to look at but hard to compute with downstream.
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see vtkAlgorithm for details
Reimplemented from vtkPolyDataAlgorithm.
void vtkContourFilter::SetOutputPointsPrecision | ( | int | precision | ) |
Set/get the desired precision for the output types. See the documentation for the vtkAlgorithm::Precision enum for an explanation of the available precision settings.
int vtkContourFilter::GetOutputPointsPrecision | ( | ) | const |
Set/get the desired precision for the output types. See the documentation for the vtkAlgorithm::Precision enum for an explanation of the available precision settings.
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Reimplemented from vtkAlgorithm.
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This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm.
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This is called by the superclass. This is the method you should override.
Reimplemented from vtkPolyDataAlgorithm.
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Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.
Reimplemented from vtkPolyDataAlgorithm.
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Definition at line 194 of file vtkContourFilter.h.
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Definition at line 195 of file vtkContourFilter.h.
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Definition at line 196 of file vtkContourFilter.h.
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Definition at line 197 of file vtkContourFilter.h.
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Definition at line 198 of file vtkContourFilter.h.
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Definition at line 199 of file vtkContourFilter.h.
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Definition at line 200 of file vtkContourFilter.h.
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Definition at line 201 of file vtkContourFilter.h.
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Definition at line 202 of file vtkContourFilter.h.
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Definition at line 204 of file vtkContourFilter.h.
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Definition at line 205 of file vtkContourFilter.h.
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Definition at line 206 of file vtkContourFilter.h.
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Definition at line 207 of file vtkContourFilter.h.