smeta_api.h

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include "ias_math.h"
#include "ias_logging.h"          /* IAS logging library                        */
#include "mtl_geometry.h"     /* MTL file geometric operations      */
#include "mtl_grid.h"             /* MTL grid generation functions      */
#include "smeta_exploit.h"        /* EMETA file read routine                    */
#include "smeta_geometry.h"       /* Geometric operations using EMETA structure */
 
#ifndef _SMETA_API_
#define _SMETA_API_
 
/* Initialize Metadata Access */
int smeta_init( 
    char    *smeta_filename );  /* Product metadata file name       */
 
/* Connect to scene ID text string */
char *smeta_file_name();
 
/* Retrieve scene framing information from the SMETA structure */
int smeta_get_frame(
    int     band,                   /* Input band number                */
    META_FRAME  *frame );               /* Output image frame info          */
 
 
/* Calculate view and sun angles for a L1T pixel for L5 and L7 satellites*/
int smeta_calc_ls(
    int     in_line,        /* L1T line coordinate              */
    int     in_samp,        /* L1T sample coordinate            */
    int     in_band,        /* Spectral band number             */
    short   *sat_zn,        /* Satellite zenith angle           */
    short   *sat_az,        /* Satellite azimuth angle          */
    short   *sun_zn,        /* Solar zenith angle               */
    short   *sun_az );      /* Solar azimuth angle              */
 
/* Calculate view and sun angles for a L1T pixel for OLI */
int smeta_calc(
    int     in_line,        /* L1T line coordinate              */
    int     in_samp,        /* L1T sample coordinate            */
    int     in_band,        /* Spectral band number             */
    /* Sudipta new addition for OLI to extract SCA and Det numbers */
    short   *sca_num,       /* SCA number                       */
    short   *det_num,       /* Detector number                  */
    /* End Sudipta new addition for OLI */
    double  *sat_zn,        /* Satellite zenith angle           */
    double  *sat_az,        /* Satellite azimuth angle          */
    double  *sun_zn,        /* Solar zenith angle               */
    double  *sun_az );      /* Solar azimuth angle              */
 
/* Disconnect from the MTL interface */
void smeta_close();
 
#endif