Contour interpolator for DEM data. More...

#include <vtkTerrainContourLineInterpolator.h>

Inheritance diagram for vtkTerrainContourLineInterpolator:

Collaboration diagram for vtkTerrainContourLineInterpolator:

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 vtkProjectedTerrainPath *	GetProjector ()

Public Member Functions inherited from vtkContourLineInterpolator
virtual void	GetSpan (int nodeIndex, vtkIntArray nodeIndices, vtkContourRepresentation rep)

vtkContourLineInterpolator *	NewInstance () const

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () 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)

vtkCommand *	GetCommand (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 vtkTerrainContourLineInterpolator *	New ()

Static Public Member Functions inherited from vtkContourLineInterpolator
static int	IsTypeOf (const char *type)

static vtkContourLineInterpolator *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

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 vtkObjectBase *	New ()

Protected Member Functions
	vtkTerrainContourLineInterpolator ()

	~vtkTerrainContourLineInterpolator ()

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
vtkImageData *	ImageData

vtkProjectedTerrainPath *	Projector

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

typedef vtkContourLineInterpolator	Superclass

static int	IsTypeOf (const char *type)

static vtkTerrainContourLineInterpolator *	SafeDownCast (vtkObjectBase *o)

virtual int	IsA (const char *type)

vtkTerrainContourLineInterpolator *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkContourLineInterpolator
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

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

typedef vtkContourLineInterpolator vtkTerrainContourLineInterpolator::Superclass

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
	)

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.