smeta_exploit.h

Go to the documentation of this file.

/*
 *  Name:   smeta_exploit.h
 *
 *  Purpose:
 *  Include file containing the function prototypes used in the exploitation of product
 *  metadata for purposes of calculating viewing and solar illumination angles. These
 *  functions operate on the SMETA data type defined in "smeta.h".
 */
#ifndef _SMETA_EXPLOIT_H_
#define _SMETA_EXPLOIT_H_
 
#include <time.h>
#include <limits.h>
#include "ias_odl.h"                /* IAS_OBJ_DESC definition                   */
#include "smeta.h"              /* Definition of SMETA structure             */
 
typedef struct META_FRAME
{
    int     band;               /* Band number                               */
    int     nlines;             /* Number of image lines                     */
    int     nsamps;             /* Number of image samples                   */
    int     code;               /* Projection code (1 = UTM or 6 = PS)       */
    int     zone;               /* Projection zone number                    */
    double  ul_x;               /* Upper left corner X coordinate            */
    double  ul_y;                           /* Upper left corner Y coordinate            */
    double  pixsize;            /* Pixel size in meters                      */
} META_FRAME;
 
int smeta_read(
    SMETA   *smeta,             /* Product metadata structure to load        */
    const char  *smeta_filename);       /* Input file name to read           */
 
int smeta_read_file_header(
    SMETA       *smeta,         /* Product metadata structure to load        */
    IAS_OBJ_DESC        *smeta_odl );       /* Product metadata ODL object               */
 
int smeta_read_projection(
    SMETA_SCENE_PROJ    *projection,        /* Projection structure to load              */
    IAS_OBJ_DESC        *smeta_odl );       /* Product metadata ODL object               */
 
int smeta_read_band_meta(
    SMETA_BAND          *band_smeta,            /* Product metadata structure to load        */
    IAS_OBJ_DESC        *smeta_odl );           /* Product metadata ODL object               */
 
/* variant for read_band_meta for L5TM and older */
int smeta_read_band_meta_ls(
    SMETA_BAND_LS          *band_smeta,            /* Product metadata structure to load        */
    IAS_OBJ_DESC        *smeta_odl );           /* Product metadata ODL object               */
 
int smeta_load_band_model(
    SMETA_BAND          *band_smeta );          /* Product metadata structure to load        */
 
/* variant for read_band_meta for L5TM and older */
int smeta_load_band_model_ls(
    SMETA       *smeta,                         /* Product metatdata structure to load */
    SMETA_BAND_LS          *band_smeta );          /* Product metadata structure to load        */
 
int meta_write_angfile(
    char        *root_filename,     /* Output root file name                     */
    short       *sat_zn,        /* Array of satellite zenith angles          */
    short       *sat_az,        /* Array of satellite azimuth angles         */
    short       *sun_zn,        /* Array of solar zenith angles              */
    short       *sun_az,        /* Array of solar azimuth angles             */
    META_FRAME      *frame );       /* Output image frame information            */
 
int delta_date(
  int           date1[3],       /* Base date year, month, day                */
  int           date2[3] );     /* Final date year, month, day               */
 
#endif