DtSingleIntersectNetworkSegmentMetric is a metric for finding any (single) intersection of a specified segment. More...

Inheritance diagram for DtSingleIntersectNetworkSegmentMetric:

Public Member Functions
	DtSingleIntersectNetworkSegmentMetric ()
virtual	~DtSingleIntersectNetworkSegmentMetric ()
virtual double	measure (const DtNetworkSegment &seg) const
	Measure the specified segment.
virtual double	measure (const DtNetworkSegment &seg, DtPoint &p) const
virtual bool	valid (const DtNetworkSegment &seg) const
	validate the segment
virtual bool	validSW (double xx, double yy) const
	validate the southwest quadrant (closed on southwest side)
virtual bool	validSE (double xx, double yy) const
	validate the southeast quadrant (closed on southwest side)
virtual bool	validNE (double xx, double yy) const
	validate the northeast quadrant (closed on southwest side)
virtual bool	validNW (double xx, double yy) const
	validate the northwest quadrant (closed on southwest side)
virtual const DtNetworkSegment *	segmentOfInterest () const
	get/set segment of interest
virtual void	setSegmentOfInterest (const DtNetworkSegment &segOfInterest)
virtual double	tolerance () const
	get/set Intersect
virtual void	setTolerance (double val)
void	setIntersectX (double newX)
double	intersectX () const
void	setIntersectY (double newY)
double	intersectY () const
void	setFoundIntersection (bool yesOrNo)
bool	foundIntersection () const
virtual void	initialize (Coordinate_System *cs)
	Initialize the metric.
Protected Member Functions
bool	endpointsCoincidentAtXY (const DtNetworkEdge &edge1, const DtNetworkEdge &edge2, DtReal xValue, DtReal yValue) const
	This method returns true if either endpoint of the first edge is coincident with either endpoint of the second edge at the x- and y- values specified.
bool	pointsCoincidentAtXY (const DtPoint &p1, const DtPoint &p2, DtReal xValue, DtReal yValue) const
Protected Attributes
const DtNetworkSegment *	mySegmentOfInterest
DtChord	myTopoSegmentOfInterest
double	myTolerance
bool	myFoundIntersection
double	myIntersectX
double	myIntersectY
double	myMaxX
double	myMaxY
double	myMinX
double	myMinY
DtCoordTransform	myTopoToLocal

Detailed Description

DtSingleIntersectNetworkSegmentMetric is a metric for finding any (single) intersection of a specified segment.

After the first intersection is found, all other computation is stopped, and the results are stored in the metric for later use by the user.

Constructor & Destructor Documentation

DtSingleIntersectNetworkSegmentMetric::DtSingleIntersectNetworkSegmentMetric ( )

virtual DtSingleIntersectNetworkSegmentMetric::~DtSingleIntersectNetworkSegmentMetric ( ) [virtual]

Member Function Documentation

virtual double DtSingleIntersectNetworkSegmentMetric::measure ( const DtNetworkSegment & seg ) const [virtual]

Measure the specified segment.

Implements DtNetworkSegmentMetric.

virtual double DtSingleIntersectNetworkSegmentMetric::measure	(	const DtNetworkSegment &	seg,
		DtPoint &	p
	)		const `[virtual]`

Parameters:

p	a reference to a point that is set to the point of intersection between this and the specified segment if one exists

virtual bool DtSingleIntersectNetworkSegmentMetric::valid ( const DtNetworkSegment & seg ) const [virtual]

validate the segment

Implements DtNetworkSegmentMetric.

virtual bool DtSingleIntersectNetworkSegmentMetric::validSW	(	double	xx,
		double	yy
	)		const `[virtual]`

validate the southwest quadrant (closed on southwest side)

Implements DtNetworkSegmentMetric.

virtual bool DtSingleIntersectNetworkSegmentMetric::validSE	(	double	xx,
		double	yy
	)		const `[virtual]`

validate the southeast quadrant (closed on southwest side)

Implements DtNetworkSegmentMetric.

virtual bool DtSingleIntersectNetworkSegmentMetric::validNE	(	double	xx,
		double	yy
	)		const `[virtual]`

validate the northeast quadrant (closed on southwest side)

Implements DtNetworkSegmentMetric.

virtual bool DtSingleIntersectNetworkSegmentMetric::validNW	(	double	xx,
		double	yy
	)		const `[virtual]`

validate the northwest quadrant (closed on southwest side)

Implements DtNetworkSegmentMetric.

virtual const DtNetworkSegment* DtSingleIntersectNetworkSegmentMetric::segmentOfInterest ( ) const [virtual]

get/set segment of interest

virtual void DtSingleIntersectNetworkSegmentMetric::setSegmentOfInterest ( const DtNetworkSegment & segOfInterest ) [virtual]

virtual double DtSingleIntersectNetworkSegmentMetric::tolerance ( ) const [virtual]

get/set Intersect

virtual void DtSingleIntersectNetworkSegmentMetric::setTolerance ( double val ) [virtual]

void DtSingleIntersectNetworkSegmentMetric::setIntersectX ( double newX )

double DtSingleIntersectNetworkSegmentMetric::intersectX ( ) const

void DtSingleIntersectNetworkSegmentMetric::setIntersectY ( double newY )

double DtSingleIntersectNetworkSegmentMetric::intersectY ( ) const

void DtSingleIntersectNetworkSegmentMetric::setFoundIntersection ( bool yesOrNo )

bool DtSingleIntersectNetworkSegmentMetric::foundIntersection ( ) const

virtual void DtSingleIntersectNetworkSegmentMetric::initialize ( Coordinate_System * cs ) [virtual]

Initialize the metric.

Use this call to do any additional preparation/initialization before the metric can be used. The vector network calls this function every time a metric is about to be used.

Reimplemented from DtMetric.

bool DtSingleIntersectNetworkSegmentMetric::endpointsCoincidentAtXY	(	const DtNetworkEdge &	edge1,
		const DtNetworkEdge &	edge2,
		DtReal	xValue,
		DtReal	yValue
	)		const `[protected]`

This method returns true if either endpoint of the first edge is coincident with either endpoint of the second edge at the x- and y- values specified.

bool DtSingleIntersectNetworkSegmentMetric::pointsCoincidentAtXY	(	const DtPoint &	p1,
		const DtPoint &	p2,
		DtReal	xValue,
		DtReal	yValue
	)		const `[protected]`