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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

void GetContourPointIds (vtkContourRepresentation *rep, vtkIdList *idList)
 
virtual int InterpolateLine (vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2)
 
virtual int UpdateNode (vtkRenderer *, vtkContourRepresentation *, double *vtkNotUsed(node), int vtkNotUsed(idx))
 
virtual void SetDistanceOffset (double)
 
virtual double GetDistanceOffset ()
 
- Public Member Functions inherited from vtkPolyDataContourLineInterpolator
virtual vtkPolyDataCollectionGetPolys ()
 
vtkPolyDataContourLineInterpolatorNewInstance () const
 
- Public Member Functions inherited from vtkContourLineInterpolator
virtual void GetSpan (int nodeIndex, vtkIntArray *nodeIndices, vtkContourRepresentation *rep)
 
vtkContourLineInterpolatorNewInstance () const
 
- Public Member Functions inherited from vtkObject
vtkObjectNewInstance () const
 
virtual void DebugOn ()
 
virtual void DebugOff ()
 
bool GetDebug ()
 
void SetDebug (bool debugFlag)
 
virtual void Modified ()
 
virtual unsigned long GetMTime ()
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
int HasObserver (unsigned long event, vtkCommand *)
 
int HasObserver (const char *event, vtkCommand *)
 
void RemoveObserver (unsigned long tag)
 
void RemoveObservers (unsigned long event)
 
void RemoveObservers (const char *event)
 
void RemoveAllObservers ()
 
int HasObserver (unsigned long event)
 
int HasObserver (const char *event)
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 
int InvokeEvent (unsigned long event, void *callData)
 
int InvokeEvent (const char *event, void *callData)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 
virtual void Delete ()
 
virtual void FastDelete ()
 
void Print (ostream &os)
 
virtual void Register (vtkObjectBase *o)
 
virtual void UnRegister (vtkObjectBase *o)
 
void SetReferenceCount (int)
 
void PrintRevisions (ostream &)
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
int GetReferenceCount ()
 

Static Public Member Functions

static vtkPolygonalSurfaceContourLineInterpolatorNew ()
 
- Static Public Member Functions inherited from vtkPolyDataContourLineInterpolator
static int IsTypeOf (const char *type)
 
static vtkPolyDataContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkContourLineInterpolator
static int IsTypeOf (const char *type)
 
static vtkContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static int IsTypeOf (const char *type)
 
static vtkObjectSafeDownCast (vtkObjectBase *o)
 
static vtkObjectNew ()
 
static void BreakOnError ()
 
static void SetGlobalWarningDisplay (int val)
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- Static Public Member Functions inherited from vtkObjectBase
static int IsTypeOf (const char *name)
 
static vtkObjectBaseNew ()
 

Protected Member Functions

 vtkPolygonalSurfaceContourLineInterpolator ()
 
 ~vtkPolygonalSurfaceContourLineInterpolator ()
 
- Protected Member Functions inherited from vtkPolyDataContourLineInterpolator
 vtkPolyDataContourLineInterpolator ()
 
 ~vtkPolyDataContourLineInterpolator ()
 
- Protected Member Functions inherited from vtkContourLineInterpolator
 vtkContourLineInterpolator ()
 
 ~vtkContourLineInterpolator ()
 
- Protected Member Functions inherited from vtkObject
 vtkObject ()
 
virtual ~vtkObject ()
 
virtual void RegisterInternal (vtkObjectBase *, int check)
 
virtual void UnRegisterInternal (vtkObjectBase *, int check)
 
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=NULL)
 
void InternalReleaseFocus ()
 
- 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
 
- 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
 
static int IsTypeOf (const char *type)
 
static vtkPolygonalSurfaceContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkPolygonalSurfaceContourLineInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBaseNewInstanceInternal () const
 

Additional Inherited Members

- Public Types inherited from vtkPolyDataContourLineInterpolator
typedef vtkContourLineInterpolator Superclass
 
- Public Types inherited from vtkContourLineInterpolator
typedef vtkObject Superclass
 
- Public Types inherited from vtkObject
typedef vtkObjectBase Superclass
 

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 51 of file vtkPolygonalSurfaceContourLineInterpolator.h.

Member Typedef Documentation

Standard methods for instances of this class.

Definition at line 56 of file vtkPolygonalSurfaceContourLineInterpolator.h.

Constructor & Destructor Documentation

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

Member Function Documentation

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

Standard methods for instances of this class.

virtual int 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 
)
virtual

Standard methods for instances of this class.

Reimplemented from vtkPolyDataContourLineInterpolator.

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

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.

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

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 102 of file vtkPolygonalSurfaceContourLineInterpolator.h.


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