emeta_api.h

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include "ias_logging.h"          /* IAS logging library                        */
#include "emeta_exploit.h"        /* EMETA file read routine                    */
#include "emeta_geometry.h"       /* Geometric operations using EMETA structure */
 
#ifndef _EMETA_API_
#define _EMETA_API_
 
/* Initialize Enhanced Metadata Access */
int emeta_init( 
    char    *emeta_filename );  /* Enhanced metadata file name      */
 
/* Retrieve scene framing information from the EMETA structure */
int emeta_get_frame(
    int     band,                   /* Input band number                */
    EMETA_FRAME *frame );               /* Output image frame info          */
 
 
/* Calculate view and sun angles for a L1T pixel */
int emeta_calc(
    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              */
 
/* Disconnect from the EMD interface */
void emeta_close();
 
#endif