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Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
vtkDijkstraImageContourLineInterpolator Class Reference

Contour interpolator for placing points on an image. More...

#include <vtkDijkstraImageContourLineInterpolator.h>

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

virtual int InterpolateLine (vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2)
 
virtual void SetCostImage (vtkImageData *)
 
virtual vtkImageData * GetCostImage ()
 
virtual
vtkDijkstraImageGeodesicPath
GetDijkstraImageGeodesicPath ()
 
- Public Member Functions inherited from vtkContourLineInterpolator
virtual int UpdateNode (vtkRenderer *, vtkContourRepresentation *, double *vtkNotUsed(node), int vtkNotUsed(idx))
 
virtual void GetSpan (int nodeIndex, vtkIntArray *nodeIndices, vtkContourRepresentation *rep)
 
vtkContourLineInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 

Static Public Member Functions

static
vtkDijkstraImageContourLineInterpolator
New ()
 
- Static Public Member Functions inherited from vtkContourLineInterpolator
static int IsTypeOf (const char *type)
 
static vtkContourLineInterpolatorSafeDownCast (vtkObjectBase *o)
 

Protected Member Functions

 vtkDijkstraImageContourLineInterpolator ()
 
 ~vtkDijkstraImageContourLineInterpolator ()
 
- Protected Member Functions inherited from vtkContourLineInterpolator
 vtkContourLineInterpolator ()
 
 ~vtkContourLineInterpolator ()
 

Protected Attributes

vtkImageData * CostImage
 
vtkDijkstraImageGeodesicPathDijkstraImageGeodesicPath
 
typedef vtkContourLineInterpolator Superclass
 
static int IsTypeOf (const char *type)
 
static
vtkDijkstraImageContourLineInterpolator
SafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkDijkstraImageContourLineInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBase * NewInstanceInternal () const
 

Detailed Description

Contour interpolator for placing points on an image.

vtkDijkstraImageContourLineInterpolator interpolates and places contour points on images. The class interpolates nodes by computing a graph laying on the image data. By graph, we mean that the line interpolating the two end points traverses along pixels so as to form a shortest path. A Dijkstra algorithm is used to compute the path.

The class is meant to be used in conjunction with vtkImageActorPointPlacer. One reason for this coupling is a performance issue: both classes need to perform a cell pick, and coupling avoids multiple cell picks (cell picks are slow). Another issue is that the interpolator may need to set the image input to its vtkDijkstraImageGeodesicPath ivar.

See Also
vtkContourWidget vtkContourLineInterpolator vtkDijkstraImageGeodesicPath
Tests:
vtkDijkstraImageContourLineInterpolator (Tests)

Definition at line 49 of file vtkDijkstraImageContourLineInterpolator.h.

Member Typedef Documentation

Standard methods for instances of this class.

Definition at line 56 of file vtkDijkstraImageContourLineInterpolator.h.

Constructor & Destructor Documentation

vtkDijkstraImageContourLineInterpolator::vtkDijkstraImageContourLineInterpolator ( )
protected
vtkDijkstraImageContourLineInterpolator::~vtkDijkstraImageContourLineInterpolator ( )
protected

Member Function Documentation

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

Standard methods for instances of this class.

virtual int vtkDijkstraImageContourLineInterpolator::IsA ( const char *  type)
virtual

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

virtual vtkObjectBase* vtkDijkstraImageContourLineInterpolator::NewInstanceInternal ( ) const
protectedvirtual

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

vtkDijkstraImageContourLineInterpolator* vtkDijkstraImageContourLineInterpolator::NewInstance ( ) const

Standard methods for instances of this class.

void vtkDijkstraImageContourLineInterpolator::PrintSelf ( ostream &  os,
vtkIndent  indent 
)

Standard methods for instances of this class.

static vtkDijkstraImageContourLineInterpolator* vtkDijkstraImageContourLineInterpolator::New ( )
static
virtual int vtkDijkstraImageContourLineInterpolator::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 vtkContourLineInterpolator.

virtual void vtkDijkstraImageContourLineInterpolator::SetCostImage ( vtkImageData *  )
virtual

Set the image data for the vtkDijkstraImageGeodesicPath. If not set, the interpolator uses the image data input to the image actor. The image actor is obtained from the expected vtkImageActorPointPlacer.

virtual vtkImageData* vtkDijkstraImageContourLineInterpolator::GetCostImage ( )
virtual

Set the image data for the vtkDijkstraImageGeodesicPath. If not set, the interpolator uses the image data input to the image actor. The image actor is obtained from the expected vtkImageActorPointPlacer.

virtual vtkDijkstraImageGeodesicPath* vtkDijkstraImageContourLineInterpolator::GetDijkstraImageGeodesicPath ( )
virtual

access to the internal dijkstra path

Member Data Documentation

vtkImageData* vtkDijkstraImageContourLineInterpolator::CostImage
protected

Definition at line 89 of file vtkDijkstraImageContourLineInterpolator.h.

vtkDijkstraImageGeodesicPath* vtkDijkstraImageContourLineInterpolator::DijkstraImageGeodesicPath
protected

Definition at line 90 of file vtkDijkstraImageContourLineInterpolator.h.


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