CSegment Class Reference

A segment of a constellation boundary. More...

#include <csegment.h>

List of all members.

Public Member Functions
void	addPoint (double ra, double dec)
bool	borders (QString cname)
	CSegment ()
SkyPoint *	firstNode ()
QString	name1 () const
QString	name2 () const
SkyPoint *	nextNode ()
QPtrList< SkyPoint > *	nodes ()
bool	setNames (QString n1, QString n2)
	~CSegment ()

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Detailed Description

A segment of a constellation boundary.

The segment consists of two or more SkyPoint "nodes" which are vertices of the boundary polygon. A single segment is define as the set of nodes that separates a single pair of constellations. An entire constellation boundary must consist of many segments, because each constellation is surrounded by multiple neighbors.

For example, imagine constellation A is surrounded by constellations B, C, and D. One CSegment (AB) will describe the boundary between A and B; another (AC) will describe the boundary between A and C; and a third (AD) will describe the boundary between A and D.

Definition at line 40 of file csegment.h.

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Constructor & Destructor Documentation

CSegment::CSegment

(

)

Constructor.

Definition at line 21 of file csegment.cpp.

CSegment::~CSegment

(

)

[inline]

Destructor (empty).

Definition at line 45 of file csegment.h.

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Member Function Documentation

void CSegment::addPoint	(	double	ra,
		double	dec
	)

Add a SkyPoint node to the boundary segment.

ra the RA of the node dec the Dec of the node

Definition at line 25 of file csegment.cpp.

bool CSegment::borders

(

QString

cname

)

Determine if a given constellation borders this boundary segment cname the IAU code of the constellation to be tested.

Definition at line 40 of file csegment.cpp.

SkyPoint* CSegment::firstNode

(

)

[inline]

Returns:

pointer to the first node in the segment

Definition at line 77 of file csegment.h.

QString CSegment::name1

(

)

const [inline]

Returns:

the name of one of the constellations that borders this boundary segment.

Definition at line 56 of file csegment.h.

QString CSegment::name2

(

)

const [inline]

Returns:

the name of one of the constellations that borders this boundary segment.

Definition at line 61 of file csegment.h.

SkyPoint* CSegment::nextNode

(

)

[inline]

Returns:

pointer to the next node in the segment. If we were on the last node, return the NULL pointer.

Definition at line 81 of file csegment.h.

QPtrList<SkyPoint>* CSegment::nodes

(

)

[inline]

Returns:

pointer to the list of nodes

Definition at line 84 of file csegment.h.

bool CSegment::setNames	(	QString	n1,
		QString	n2
	)

Set the names of the bounding constellations.

Use the IAU three-letter abbreviations. n1 IAU name of one bounding constellation n2 IAU name of the other bounding constellation

Definition at line 30 of file csegment.cpp.

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

• csegment.h
• csegment.cpp