public software.sextractor

/*

*                               subimage.h

*

* Include file for subimage.c.

*

*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

*

*       This file part of:      SExtractor

*

*       Copyright:              (C) 1993-2012 Emmanuel Bertin -- IAP/CNRS/UPMC

*

*       License:                GNU General Public License

*

*       SExtractor is free software: you can redistribute it and/or modify

*       it under the terms of the GNU General Public License as published by

*       the Free Software Foundation, either version 3 of the License, or

*       (at your option) any later version.

*       SExtractor is distributed in the hope that it will be useful,

*       but WITHOUT ANY WARRANTY; without even the implied warranty of

*       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

*       GNU General Public License for more details.

*       You should have received a copy of the GNU General Public License

*       along with SExtractor. If not, see <http://www.gnu.org/licenses/>.

*

*       Last modified:          03/04/2012

*

*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/

#ifndef _SUBIMAGE_H_

#define _SUBIMAGE_H_

#ifndef _FIELD_H_

#include        "field.h"

#endif

/*------------------------------- structures --------------------------------*/

typedef struct subimage

  {

  struct field  *field; /* pointer to the image field that hosts local data */

  struct field  *wfield;/* pointer to the field that hosts local weights */

  PIXTYPE       *image;                         /* Copy of local image data */

  PIXTYPE       *weight;                        /* Copy of local weight data */

  double        dpos[2];                /* Local object coordinates of centre */

  int           ipos[2];                /* Local coordinates of image centre */

  int           imsize[2];                      /* Local image data size */

  int           immin[2];                       /* Local image data min x/y */

  int           immax[2];                       /* Local image data max x/y */

  double        djacob[4];                      /* Local image Jacobian matrix*/

  double        dinvjacob[4];                   /* Inverse Jacobian matrix */

  double        dscale;                         /* Local relative pixel scale */

  PIXTYPE       bkg;                            /* Local background level */

  }     subimagestruct;

/*------------------------------- functions ---------------------------------*/

subimagestruct  *subimage_getall(fieldstruct **fields, fieldstruct **wfields,

                                int nfield, obj2struct *obj2);

void            subimage_endall(obj2struct *obj2),

                subimage_init(subimagestruct *subimage,

                                fieldstruct *field, fieldstruct *wfield,

                                obj2struct *obj2, subimagestruct *dsubimage);

#endif