IsoContourTracer Class Reference

Tracing the z-level contour of a 2D scalar field. More...

Public Member Functions
	IsoContourTracer (const Array2D< float > &)
	~IsoContourTracer ()
bool	getContours (ObjectSet< ODPolygon< float > > &, float z, bool closedonly=false) const
	To close contours along (RectROI) edge. More...
void	selectPolyROI (const ODPolygon< float > *)
void	selectRectROI (const Interval< int > &xintv, const Interval< int > &yintv)
void	setBendPointsOnly (float eps)
void	setEdgeValue (float)
void	setMinNrVertices (int)
void	setNrLargestOnly (int)
void	setSampling (const StepInterval< int > &xsamp, const StepInterval< int > &ysamp)

Protected Member Functions
void	addVertex (ODPolygon< float > &contour, bool headinsert, int idx, int idy, int hor, float frac) const
void	findCrossings (Array3DImpl< float > &crossings, float z) const
void	traceContours (Array3DImpl< float > &crossings, ObjectSet< ODPolygon< float > > &, bool closedonly) const

Protected Attributes
float	bendpointeps_
unsigned int	edgepar_
float	edgevalue_
const Array2D< float > &	field_
int	minnrvertices_
int	nrlargestonly_
const ODPolygon< float > *	polyroi_
Interval< int >	xrange_
StepInterval< int >	xsampling_
Interval< int >	yrange_
StepInterval< int >	ysampling_

Detailed Description

Tracing the z-level contour of a 2D scalar field.

<>

Constructor & Destructor Documentation

IsoContourTracer()

IsoContourTracer::IsoContourTracer

(

const Array2D< float > &

)

~IsoContourTracer()

IsoContourTracer::~IsoContourTracer

(

)

Member Function Documentation

addVertex()

void IsoContourTracer::addVertex ( ODPolygon< float > &  contour, bool  headinsert, int  idx, int  idy, int  hor, float  frac  ) const

protected

findCrossings()

void IsoContourTracer::findCrossings ( Array3DImpl< float > &  crossings, float  z  ) const

protected

getContours()

bool IsoContourTracer::getContours	(	ObjectSet< ODPolygon< float > > &	,
		float	z,
		bool	closedonly = false
	)		const

To close contours along (RectROI) edge.

selectPolyROI()

void IsoContourTracer::selectPolyROI

(

const ODPolygon< float > *

)

selectRectROI()

void IsoContourTracer::selectRectROI	(	const Interval< int > &	xintv,
		const Interval< int > &	yintv
	)

setBendPointsOnly()

void IsoContourTracer::setBendPointsOnly

(

float

eps

)

setEdgeValue()

void IsoContourTracer::setEdgeValue

(

float

)

setMinNrVertices()

void IsoContourTracer::setMinNrVertices

(

int

)

setNrLargestOnly()

void IsoContourTracer::setNrLargestOnly

(

int

)

setSampling()

void IsoContourTracer::setSampling	(	const StepInterval< int > &	xsamp,
		const StepInterval< int > &	ysamp
	)

traceContours()

void IsoContourTracer::traceContours ( Array3DImpl< float > &  crossings, ObjectSet< ODPolygon< float > > &  , bool  closedonly  ) const

protected

Member Data Documentation

bendpointeps_

float IsoContourTracer::bendpointeps_

protected

edgepar_

unsigned int IsoContourTracer::edgepar_

protected

edgevalue_

float IsoContourTracer::edgevalue_

protected

field_

const Array2D<float>& IsoContourTracer::field_

protected

minnrvertices_

int IsoContourTracer::minnrvertices_

protected

nrlargestonly_

int IsoContourTracer::nrlargestonly_

protected

polyroi_

const ODPolygon<float>* IsoContourTracer::polyroi_

protected

xrange_

Interval<int> IsoContourTracer::xrange_

protected

xsampling_

StepInterval<int> IsoContourTracer::xsampling_

protected

yrange_

Interval<int> IsoContourTracer::yrange_

protected

ysampling_

StepInterval<int> IsoContourTracer::ysampling_

protected