vtkTerrainContourLineInterpolator Class Reference

#include <vtkTerrainContourLineInterpolator.h>

Inheritance diagram for vtkTerrainContourLineInterpolator:

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Collaboration diagram for vtkTerrainContourLineInterpolator:

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List of all members.


Detailed Description

Contour interpolator for DEM data.

vtkTerrainContourLineInterpolator interpolates nodes on height field data. The class is meant to be used in conjunciton with a vtkContourWidget, enabling you to draw paths on terrain data. The class internally uses a vtkProjectedTerrainPath. Users can set kind of interpolation desired between two node points by setting the modes of the this filter. For instance:

 contourRepresentation->SetLineInterpolator(interpolator);
 interpolator->SetImageData( demDataFile );
 interpolator->GetProjector()->SetProjectionModeToHug();
 interpolator->SetHeightOffset(25.0);

You are required to set the ImageData to this class as the height-field image.

See also:
vtkTerrainDataPointPlacer vtkProjectedTerrainPath
Tests:
vtkTerrainContourLineInterpolator (Tests)

Definition at line 51 of file vtkTerrainContourLineInterpolator.h.

typedef vtkContourLineInterpolator Superclass
static int IsTypeOf (const char *type)
static
vtkTerrainContourLineInterpolator
SafeDownCast (vtkObject *o)
virtual const char * GetClassName ()
virtual int IsA (const char *type)
void PrintSelf (ostream &os, vtkIndent indent)

Public Member Functions

virtual int InterpolateLine (vtkRenderer *ren, vtkContourRepresentation *rep, int idx1, int idx2)
virtual int UpdateNode (vtkRenderer *, vtkContourRepresentation *, double *vtkNotUsed(node), int vtkNotUsed(idx))
virtual void SetImageData (vtkImageData *)
virtual vtkImageDataGetImageData ()
virtual vtkProjectedTerrainPathGetProjector ()

Static Public Member Functions

static
vtkTerrainContourLineInterpolator
New ()

Protected Member Functions

 vtkTerrainContourLineInterpolator ()
 ~vtkTerrainContourLineInterpolator ()

Protected Attributes

vtkImageDataImageData
vtkProjectedTerrainPathProjector

Member Typedef Documentation

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

Definition at line 61 of file vtkTerrainContourLineInterpolator.h.


Constructor & Destructor Documentation

vtkTerrainContourLineInterpolator::vtkTerrainContourLineInterpolator (  )  [protected]

vtkTerrainContourLineInterpolator::~vtkTerrainContourLineInterpolator (  )  [protected]


Member Function Documentation

static vtkTerrainContourLineInterpolator* vtkTerrainContourLineInterpolator::New (  )  [static]

Instantiate this class.

Reimplemented from vtkObject.

virtual const char* vtkTerrainContourLineInterpolator::GetClassName (  )  [virtual]

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

static vtkTerrainContourLineInterpolator* vtkTerrainContourLineInterpolator::SafeDownCast ( vtkObject o  )  [static]

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

virtual int vtkTerrainContourLineInterpolator::InterpolateLine ( vtkRenderer ren,
vtkContourRepresentation rep,
int  idx1,
int  idx2 
) [virtual]

Interpolate to create lines between contour nodes idx1 and idx2. Depending on the projection mode, the interpolated line may either hug the terrain, just connect the two points with a straight line or a non-occluded interpolation. Used internally by vtkContourRepresentation.

Implements vtkContourLineInterpolator.

virtual int vtkTerrainContourLineInterpolator::UpdateNode ( vtkRenderer ,
vtkContourRepresentation ,
double *  vtkNotUsednode,
int   vtkNotUsedidx 
) [virtual]

The interpolator is given a chance to update the node. Used internally by vtkContourRepresentation Returns 0 if the node (world position) is unchanged.

Reimplemented from vtkContourLineInterpolator.

virtual void vtkTerrainContourLineInterpolator::SetImageData ( vtkImageData  )  [virtual]

Set the height field data. The height field data is a 2D image. The scalars in the image represent the height field. This must be set.

virtual vtkImageData* vtkTerrainContourLineInterpolator::GetImageData (  )  [virtual]

Set the height field data. The height field data is a 2D image. The scalars in the image represent the height field. This must be set.

virtual vtkProjectedTerrainPath* vtkTerrainContourLineInterpolator::GetProjector (  )  [virtual]

Get the vtkProjectedTerrainPath operator used to project the terrain onto the data. This operator has several modes, See the documentation of vtkProjectedTerrainPath. The default mode is to hug the terrain data at 0 height offset.


Member Data Documentation

Definition at line 104 of file vtkTerrainContourLineInterpolator.h.

Definition at line 105 of file vtkTerrainContourLineInterpolator.h.


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

Generated on Mon Sep 27 18:54:51 2010 for VTK by  doxygen 1.5.6