match.h File Reference

Source Matching Code. More...

#include "datatypes.h"

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Defines
#define	MATCH_FAIL   -1
#define	HANDSHAKE_FAIL   -2
Functions
int	bfind (IndexedList list[], int low, int high, double key)
void	getrange (IndexedList dec[], int nrecs, int idx, double tol, int *i1, int *i2, double dec0)
double	calc_metric (double asvalue)
int *	matchpairs (CartesianSet cartM[], IndexedList decM[], int nrecM, CartesianSet cartS[], IndexedList decS[], int nrecS, double matchradius)
void	handshake (int *ppM, int nrecM, int *ppS, int nrecS)

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Detailed Description

Source Matching Code.

Author:

Ian Bond, IfA, University of Edinburgh

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Define Documentation

#define HANDSHAKE_FAIL   -2

Null value meaning that although a one way match was found, the handshake test failed

Referenced by handshake().

#define MATCH_FAIL   -1

Null value meaning that for a given master record, a matching slave record was not found

Referenced by create_merge_table(), and matchpairs().

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Function Documentation

int bfind	(	IndexedList	list[],
		int	low,
		int	high,
		double	key
	)

Binary find function. Search the sorted indexed list within the two limits for the nearest value to the given key. This gets called recursively.

References bfind(), and IndexedList::value.

Referenced by bfind(), and matchpairs().

double calc_metric

(

double

asvalue

)

Convert a spatial separation in arcseconds to a distance in cartesian space. Not used anymore.

Referenced by matchpairs().

void getrange	(	IndexedList	dec[],
		int	nrecs,
		int	idx,
		double	tol,
		int *	i1,
		int *	i2,
		double	dec0
	)

Find the range of values in the indexed list that lie within the tolerance of the given pivot index

References IndexedList::value.

Referenced by matchpairs().

void handshake	(	int *	ppM,
		int	nrecM,
		int *	ppS,
		int	nrecS
	)

Carry out the "handshaking" operation between the two pointer arrays.

References HANDSHAKE_FAIL.

Referenced by create_pointer_files().

int* matchpairs	(	CartesianSet	cartM[],
		IndexedList	decM[],
		int	nrecM,
		CartesianSet	cartS[],
		IndexedList	decS[],
		int	nrecS,
		double	matchradius
	)

Take the two lists of cartesian coordinates and return a pointer to an array of pair points from the "master" (suffix M) to the "slave" (suffix S) arrays.

References bfind(), calc_metric(), CartesianSet::cx, CartesianSet::cy, CartesianSet::cz, getrange(), IndexedList::index, and MATCH_FAIL.

Referenced by create_pointer_files().