VTK
Static Public Member Functions | Protected Member Functions | Protected Attributes
vtkDijkstraImageContourLineInterpolator Class Reference

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

#include <vtkDijkstraImageContourLineInterpolator.h>

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List of all members.

Public Member Functions

virtual int InterpolateLine (vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2)
virtual void SetCostImage (vtkImageData *)
virtual vtkImageDataGetCostImage ()
virtual
vtkDijkstraImageGeodesicPath
GetDijkstraImageGeodesicPath ()

Static Public Member Functions

static
vtkDijkstraImageContourLineInterpolator
New ()

Protected Member Functions

 vtkDijkstraImageContourLineInterpolator ()
 ~vtkDijkstraImageContourLineInterpolator ()

Protected Attributes

vtkImageDataCostImage
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 vtkObjectBaseNewInstanceInternal () 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.

Reimplemented from vtkContourLineInterpolator.

Definition at line 56 of file vtkDijkstraImageContourLineInterpolator.h.


Constructor & Destructor Documentation


Member Function Documentation

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

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.

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.

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.

access to the internal dijkstra path


Member Data Documentation

Definition at line 89 of file vtkDijkstraImageContourLineInterpolator.h.

Definition at line 90 of file vtkDijkstraImageContourLineInterpolator.h.


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