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vtkTerrainContourLineInterpolator Class Reference

Contour interpolator for DEM data. More...

#include <vtkTerrainContourLineInterpolator.h>

Inheritance diagram for vtkTerrainContourLineInterpolator:
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Collaboration diagram for vtkTerrainContourLineInterpolator:
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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 vtkImageData * GetImageData ()
 
virtual vtkProjectedTerrainPathGetProjector ()
 
- Public Member Functions inherited from vtkContourLineInterpolator
virtual void GetSpan (int nodeIndex, vtkIntArray *nodeIndices, vtkContourRepresentation *rep)
 
vtkContourLineInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 

Static Public Member Functions

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

Protected Member Functions

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

Protected Attributes

vtkImageData * ImageData
 
vtkProjectedTerrainPathProjector
 
typedef vtkContourLineInterpolator Superclass
 
static int IsTypeOf (const char *type)
 
static
vtkTerrainContourLineInterpolator
SafeDownCast (vtkObjectBase *o)
 
virtual int IsA (const char *type)
 
vtkTerrainContourLineInterpolatorNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent)
 
virtual vtkObjectBase * NewInstanceInternal () const
 

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 52 of file vtkTerrainContourLineInterpolator.h.

Member Typedef Documentation

Standard methods for instances of this class.

Definition at line 62 of file vtkTerrainContourLineInterpolator.h.

Constructor & Destructor Documentation

vtkTerrainContourLineInterpolator::vtkTerrainContourLineInterpolator ( )
protected
vtkTerrainContourLineInterpolator::~vtkTerrainContourLineInterpolator ( )
protected

Member Function Documentation

static vtkTerrainContourLineInterpolator* vtkTerrainContourLineInterpolator::New ( )
static

Instantiate this class.

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

Standard methods for instances of this class.

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

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

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

Standard methods for instances of this class.

virtual vtkObjectBase* vtkTerrainContourLineInterpolator::NewInstanceInternal ( ) const
protectedvirtual

Standard methods for instances of this class.

Reimplemented from vtkContourLineInterpolator.

vtkTerrainContourLineInterpolator* vtkTerrainContourLineInterpolator::NewInstance ( ) const

Standard methods for instances of this class.

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

Standard methods for instances of this class.

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

vtkImageData* vtkTerrainContourLineInterpolator::ImageData
protected

Definition at line 105 of file vtkTerrainContourLineInterpolator.h.

vtkProjectedTerrainPath* vtkTerrainContourLineInterpolator::Projector
protected

Definition at line 106 of file vtkTerrainContourLineInterpolator.h.


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