HoughMap.c File Reference

Subroutines for initialization and construction of Hough-map derivatives and total Hough-maps. More...

#include <lal/HoughMap.h>

Include dependency graph for HoughMap.c:

Go to the source code of this file.

Functions
	NRCSID (HOUGHMAPC,"$Id: HoughMap.c,v 1.12 2008/01/30 22:56:13 bema Exp $")
void	LALHOUGHInitializeHD (LALStatus *status, HOUGHMapDeriv *hd)
void	LALHOUGHInitializeHT (LALStatus *status, HOUGHMapTotal *ht, HOUGHPatchGrid *patch)
void	LALHOUGHAddPHMD2HD (LALStatus *status, HOUGHMapDeriv *hd, HOUGHphmd *phmd)
	Adds a hough map derivative into a total hough map derivative WITHOUT taking into account the weight of the partial hough map.
void	LALHOUGHAddPHMD2HD_W (LALStatus *status, HOUGHMapDeriv *hd, HOUGHphmd *phmd)
	Adds a hough map derivative into a total hough map derivative taking into account the weight of the partial hough map.
void	LALHOUGHIntegrHD2HT (LALStatus *status, HOUGHMapTotal *ht, HOUGHMapDeriv *hd)
void	LALStereo2SkyLocation (LALStatus *status, REAL8UnitPolarCoor *sourceLocation, UINT2 xPos, UINT2 yPos, HOUGHPatchGrid *patch, HOUGHDemodPar *parDem)
	Find source sky location given stereographic coordinates indexes.

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Detailed Description

Subroutines for initialization and construction of Hough-map derivatives and total Hough-maps.

Author:

Sintes, A.M.,

Revision:

Id

HoughMap.c,v 1.12 2008/01/30 22:56:13 bema Exp

History: Created by Sintes June 22, 2001 Modified " August 6, 2001

Description

The function LALHOUGHInitializeHD() initializes the Hough map derivative space HOUGHMapDeriv *hd to zero. Note that the length of the map hd->map should be hd->ySide * (hd->xSide + 1).

The function LALHOUGHInitializeHT() initializes the total Hough map HOUGHMapTotal *ht to zero and checks consistency between the number of physical pixels in the map and those given by the grid information structure HOUGHPatchGrid *patch.

Given an initial Hough map derivative HOUGHMapDeriv *hd and a representation of a phmd HOUGHphmd *phmd, the function LALHOUGHAddPHMD2HD() accumulates the partial Hough map derivative *phmd to *hd by adding +1 or -1 to the pixels corresponding to the left or right borders respectively. It takes into account corrections due to border effects as well.

The function LALHOUGHIntegrHD2HT() constructs a total Hough map HOUGHMapTotal *ht from its derivative HOUGHMapDeriv *hd by integrating each row (x-direction).

Definition in file HoughMap.c.

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Function Documentation

NRCSID	(	HOUGHMAPC	,
		"$Id: HoughMap.	c,
		v 1.12 2008/01/30 22:56:13 bema Exp $"
	)

void LALHOUGHInitializeHD	(	LALStatus *	status,
		HOUGHMapDeriv *	hd
	)

Definition at line 132 of file HoughMap.c.

void LALHOUGHInitializeHT	(	LALStatus *	status,
		HOUGHMapTotal *	ht,
		HOUGHPatchGrid *	patch
	)

Definition at line 170 of file HoughMap.c.

void LALHOUGHAddPHMD2HD	(	LALStatus *	status,
		HOUGHMapDeriv *	hd,
		HOUGHphmd *	phmd
	)

Adds a hough map derivative into a total hough map derivative WITHOUT taking into account the weight of the partial hough map.

Parameters:

status	the status pointer
hd	the Hough map derivative
phmd	info from a partial map

Definition at line 214 of file HoughMap.c.

void LALHOUGHAddPHMD2HD_W	(	LALStatus *	status,
		HOUGHMapDeriv *	hd,
		HOUGHphmd *	phmd
	)

Adds a hough map derivative into a total hough map derivative taking into account the weight of the partial hough map.

Parameters:

status	the status pointer
hd	the Hough map derivative
phmd	info from a partial map

Definition at line 322 of file HoughMap.c.

void LALHOUGHIntegrHD2HT	(	LALStatus *	status,
		HOUGHMapTotal *	ht,
		HOUGHMapDeriv *	hd
	)

Definition at line 443 of file HoughMap.c.

void LALStereo2SkyLocation	(	LALStatus *	status,
		REAL8UnitPolarCoor *	sourceLocation,
		UINT2	xPos,
		UINT2	yPos,
		HOUGHPatchGrid *	patch,
		HOUGHDemodPar *	parDem
	)

Find source sky location given stereographic coordinates indexes.

Definition at line 497 of file HoughMap.c.

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