Contour interpolator for DEM data. More...

#include <vtkTerrainContourLineInterpolator.h>

Inheritance diagram for vtkTerrainContourLineInterpolator:

Collaboration diagram for vtkTerrainContourLineInterpolator:

Public Types
typedef vtkContourLineInterpolator	Superclass
	Standard methods for instances of this class. More...

Public Types inherited from vtkContourLineInterpolator
typedef vtkObject	Superclass
	Standard methods for instances of this class. More...

Public Member Functions
virtual int	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkTerrainContourLineInterpolator *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual int	InterpolateLine (vtkRenderer ren, vtkContourRepresentation rep, int idx1, int idx2)
	Interpolate to create lines between contour nodes idx1 and idx2. More...

virtual int	UpdateNode (vtkRenderer , vtkContourRepresentation , double *vtkNotUsed(node), int vtkNotUsed(idx))
	The interpolator is given a chance to update the node. More...

virtual void	SetImageData (vtkImageData *)
	Set the height field data. More...

virtual vtkImageData *	GetImageData ()

virtual vtkProjectedTerrainPath *	GetProjector ()
	Get the vtkProjectedTerrainPath operator used to project the terrain onto the data. More...

Public Member Functions inherited from vtkContourLineInterpolator
virtual int	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkContourLineInterpolator *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual int	InterpolateLine (vtkRenderer ren, vtkContourRepresentation rep, int idx1, int idx2)=0
	Subclasses that wish to interpolate a line segment must implement this. More...

virtual int	UpdateNode (vtkRenderer , vtkContourRepresentation , double *vtkNotUsed(node), int vtkNotUsed(idx))
	The interpolator is given a chance to update the node. More...

virtual void	GetSpan (int nodeIndex, vtkIntArray nodeIndices, vtkContourRepresentation rep)
	Span of the interpolator. More...

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

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)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

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)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

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
	Return the class name as a string. More...

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

virtual void	PrintSelf (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

void	PrintRevisions (ostream &)
	Legacy. More...

Static Public Member Functions
static vtkTerrainContourLineInterpolator *	New ()
	Instantiate this class. More...

static int	IsTypeOf (const char *type)

static vtkTerrainContourLineInterpolator *	SafeDownCast (vtkObjectBase *o)

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 vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkTerrainContourLineInterpolator ()

	~vtkTerrainContourLineInterpolator ()

Protected Member Functions inherited from vtkContourLineInterpolator
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkContourLineInterpolator ()

	~vtkContourLineInterpolator ()

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

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

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 53 of file vtkTerrainContourLineInterpolator.h.

Member Typedef Documentation

◆ Superclass

typedef vtkContourLineInterpolator vtkTerrainContourLineInterpolator::Superclass

Standard methods for instances of this class.

Definition at line 67 of file vtkTerrainContourLineInterpolator.h.

Constructor & Destructor Documentation

◆ vtkTerrainContourLineInterpolator()

vtkTerrainContourLineInterpolator::vtkTerrainContourLineInterpolator ( )

protected

◆ ~vtkTerrainContourLineInterpolator()

vtkTerrainContourLineInterpolator::~vtkTerrainContourLineInterpolator ( )

protected

Member Function Documentation

◆ New()

static vtkTerrainContourLineInterpolator * vtkTerrainContourLineInterpolator::New ( )

static

Instantiate this class.

◆ IsTypeOf()

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

static

◆ IsA()

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

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkContourLineInterpolator.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkTerrainContourLineInterpolator::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkContourLineInterpolator.

◆ NewInstance()

vtkTerrainContourLineInterpolator * vtkTerrainContourLineInterpolator::NewInstance ( ) const

◆ PrintSelf()

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

virtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkContourLineInterpolator.

◆ InterpolateLine()

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.

◆ UpdateNode()

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.

◆ SetImageData()

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.

◆ GetImageData()

virtual vtkImageData * vtkTerrainContourLineInterpolator::GetImageData ( )

virtual

◆ GetProjector()

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

◆ ImageData

vtkImageData* vtkTerrainContourLineInterpolator::ImageData

protected

Definition at line 114 of file vtkTerrainContourLineInterpolator.h.

◆ Projector

vtkProjectedTerrainPath* vtkTerrainContourLineInterpolator::Projector

protected

Definition at line 115 of file vtkTerrainContourLineInterpolator.h.

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

dox/Interaction/Widgets/vtkTerrainContourLineInterpolator.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkTerrainContourLineInterpolator()

◆ ~vtkTerrainContourLineInterpolator()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ InterpolateLine()

◆ UpdateNode()

◆ SetImageData()

◆ GetImageData()

◆ GetProjector()

Member Data Documentation

◆ ImageData

◆ Projector