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vtkPolygonalSurfaceContourLineInterpolator Class Reference

Contour interpolator for to place points on polygonal surfaces. More...

#include <vtkPolygonalSurfaceContourLineInterpolator.h>

Inheritance diagram for vtkPolygonalSurfaceContourLineInterpolator:
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Collaboration diagram for vtkPolygonalSurfaceContourLineInterpolator:
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Public Member Functions

int InterpolateLine (vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2) override
 Subclasses that wish to interpolate a line segment must implement this. More...
 
int UpdateNode (vtkRenderer *, vtkContourRepresentation *, double *vtkNotUsed(node), int vtkNotUsed(idx)) override
 The interpolator is given a chance to update the node. More...
 
void GetContourPointIds (vtkContourRepresentation *rep, vtkIdList *idList)
 Get the contour point ids. More...
 
virtual void SetDistanceOffset (double)
 Height offset at which points may be placed on the polygonal surface. More...
 
virtual double GetDistanceOffset ()
 Height offset at which points may be placed on the polygonal surface. More...
 
- Public Member Functions inherited from vtkPolyDataContourLineInterpolator
virtual vtkPolyDataCollectionGetPolys ()
 Be sure to add polydata on which you wish to place points to this list or they will not be considered for placement. More...
 
vtkPolyDataContourLineInterpolatorNewInstance () const
 Standard methods for instances of this class. More...
 
- Public Member Functions inherited from vtkContourLineInterpolator
virtual void GetSpan (int nodeIndex, vtkIntArray *nodeIndices, vtkContourRepresentation *rep)
 Span of the interpolator. More...
 
vtkContourLineInterpolatorNewInstance () const
 Standard methods for instances of this class. More...
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on. More...
 
virtual void DebugOff ()
 Turn debugging output off. More...
 
bool GetDebug ()
 Get the value of the debug flag. More...
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag. More...
 
virtual void Modified ()
 Update the modification time for this object. More...
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time. More...
 
void RemoveObserver (unsigned long tag)
 
void RemoveObservers (unsigned long event)
 
void RemoveObservers (const char *event)
 
void RemoveAllObservers ()
 
vtkTypeBool HasObserver (unsigned long event)
 
vtkTypeBool HasObserver (const char *event)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Allow user to set the AbortFlagOn() with the return value of the callback method. More...
 
int InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
int InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. More...
 
virtual void Delete ()
 Delete a VTK object. More...
 
virtual void FastDelete ()
 Delete a reference to this object. More...
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream. More...
 
virtual void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object). More...
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object). More...
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
void PrintRevisions (ostream &)
 Legacy. More...
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 

Static Public Member Functions

static vtkPolygonalSurfaceContourLineInterpolatorNew ()
 
- Static Public Member Functions inherited from vtkPolyDataContourLineInterpolator
static vtkTypeBool IsTypeOf (const char *type)
 Standard methods for instances of this class. More...
 
static vtkPolyDataContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 Standard methods for instances of this class. More...
 
- Static Public Member Functions inherited from vtkContourLineInterpolator
static vtkTypeBool IsTypeOf (const char *type)
 Standard methods for instances of this class. More...
 
static vtkContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 Standard methods for instances of this class. More...
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes. More...
 
static void SetGlobalWarningDisplay (int val)
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static int GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
- Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool IsTypeOf (const char *name)
 Return 1 if this class type is the same type of (or a subclass of) the named class. More...
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

 vtkPolygonalSurfaceContourLineInterpolator ()
 
 ~vtkPolygonalSurfaceContourLineInterpolator () override
 
- Protected Member Functions inherited from vtkPolyDataContourLineInterpolator
 vtkPolyDataContourLineInterpolator ()
 
 ~vtkPolyDataContourLineInterpolator () override
 
- Protected Member Functions inherited from vtkContourLineInterpolator
 vtkContourLineInterpolator ()
 
 ~vtkContourLineInterpolator () override
 
- Protected Member Functions inherited from vtkObject
 vtkObject ()
 
 ~vtkObject () override
 
void RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
 These methods allow a command to exclusively grab all events. More...
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events. More...
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

double DistanceOffset
 Draw the polyline at a certain height (in the direction of the vertex normal) above the polydata. More...
 
- Protected Attributes inherited from vtkPolyDataContourLineInterpolator
vtkPolyDataCollectionPolys
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 
typedef vtkPolyDataContourLineInterpolator Superclass
 Standard methods for instances of this class. More...
 
static vtkTypeBool IsTypeOf (const char *type)
 Standard methods for instances of this class. More...
 
static vtkPolygonalSurfaceContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 Standard methods for instances of this class. More...
 
virtual vtkTypeBool IsA (const char *type)
 Standard methods for instances of this class. More...
 
vtkPolygonalSurfaceContourLineInterpolatorNewInstance () const
 Standard methods for instances of this class. More...
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Standard methods for instances of this class. More...
 
virtual vtkObjectBaseNewInstanceInternal () const
 Standard methods for instances of this class. More...
 

Additional Inherited Members

- Public Types inherited from vtkPolyDataContourLineInterpolator
typedef vtkContourLineInterpolator Superclass
 Standard methods for instances of this class. More...
 
- Public Types inherited from vtkContourLineInterpolator
typedef vtkObject Superclass
 Standard methods for instances of this class. More...
 

Detailed Description

Contour interpolator for to place points on polygonal surfaces.

vtkPolygonalSurfaceContourLineInterpolator interpolates and places contour points on polygonal surfaces. The class interpolates nodes by computing a graph geodesic laying on the polygonal data. By graph Geodesic, we mean that the line interpolating the two end points traverses along on the mesh edges so as to form the shortest path. A Dijkstra algorithm is used to compute the path. See vtkDijkstraGraphGeodesicPath.

The class is mean to be used in conjunction with vtkPolygonalSurfacePointPlacer. The reason for this weak coupling is a performance issue, both classes need to perform a cell pick, and coupling avoids multiple cell picks (cell picks are slow).

Warning
You should have computed cell normals for the input polydata.
See also
vtkDijkstraGraphGeodesicPath, vtkPolyDataNormals
Tests:
vtkPolygonalSurfaceContourLineInterpolator (Tests)

Definition at line 52 of file vtkPolygonalSurfaceContourLineInterpolator.h.

Member Typedef Documentation

Standard methods for instances of this class.

Definition at line 59 of file vtkPolygonalSurfaceContourLineInterpolator.h.

Constructor & Destructor Documentation

vtkPolygonalSurfaceContourLineInterpolator::vtkPolygonalSurfaceContourLineInterpolator ( )
protected
vtkPolygonalSurfaceContourLineInterpolator::~vtkPolygonalSurfaceContourLineInterpolator ( )
overrideprotected

Member Function Documentation

static vtkTypeBool vtkPolygonalSurfaceContourLineInterpolator::IsTypeOf ( const char *  type)
static

Standard methods for instances of this class.

virtual vtkTypeBool vtkPolygonalSurfaceContourLineInterpolator::IsA ( const char *  type)
virtual

Standard methods for instances of this class.

Reimplemented from vtkPolyDataContourLineInterpolator.

static vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::SafeDownCast ( vtkObjectBase o)
static

Standard methods for instances of this class.

virtual vtkObjectBase* vtkPolygonalSurfaceContourLineInterpolator::NewInstanceInternal ( ) const
protectedvirtual

Standard methods for instances of this class.

Reimplemented from vtkPolyDataContourLineInterpolator.

vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::NewInstance ( ) const

Standard methods for instances of this class.

void vtkPolygonalSurfaceContourLineInterpolator::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

Standard methods for instances of this class.

Reimplemented from vtkPolyDataContourLineInterpolator.

static vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::New ( )
static
int vtkPolygonalSurfaceContourLineInterpolator::InterpolateLine ( vtkRenderer ren,
vtkContourRepresentation rep,
int  idx1,
int  idx2 
)
overridevirtual

Subclasses that wish to interpolate a line segment must implement this.

For instance vtkBezierContourLineInterpolator adds nodes between idx1 and idx2, that allow the contour to adhere to a bezier curve.

Implements vtkPolyDataContourLineInterpolator.

int vtkPolygonalSurfaceContourLineInterpolator::UpdateNode ( vtkRenderer ,
vtkContourRepresentation ,
double vtkNotUsednode,
int   vtkNotUsedidx 
)
overridevirtual

The interpolator is given a chance to update the node.

vtkImageContourLineInterpolator updates the idx'th node in the contour, so it automatically sticks to edges in the vicinity as the user constructs the contour. Returns 0 if the node (world position) is unchanged.

Implements vtkPolyDataContourLineInterpolator.

virtual void vtkPolygonalSurfaceContourLineInterpolator::SetDistanceOffset ( double  )
virtual

Height offset at which points may be placed on the polygonal surface.

If you specify a non-zero value here, be sure to have computed vertex normals on your input polygonal data. (easily done with vtkPolyDataNormals).

virtual double vtkPolygonalSurfaceContourLineInterpolator::GetDistanceOffset ( )
virtual

Height offset at which points may be placed on the polygonal surface.

If you specify a non-zero value here, be sure to have computed vertex normals on your input polygonal data. (easily done with vtkPolyDataNormals).

void vtkPolygonalSurfaceContourLineInterpolator::GetContourPointIds ( vtkContourRepresentation rep,
vtkIdList idList 
)

Get the contour point ids.

These point ids correspond to those on the polygonal surface

Member Data Documentation

double vtkPolygonalSurfaceContourLineInterpolator::DistanceOffset
protected

Draw the polyline at a certain height (in the direction of the vertex normal) above the polydata.

Definition at line 110 of file vtkPolygonalSurfaceContourLineInterpolator.h.


The documentation for this class was generated from the following file: