readL2scan.h

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#ifndef READL2SCAN_H
#define READL2SCAN_H
 
#include <dfutils.h>
 
#define byte unsigned char
 
#define MAXNFILES 10000 /* Increase to 544 09/25/06 JMG - 800 WDR */
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct l2prod_struct {
    int32_t fileindex;
 
    char filename[128];
    char oformat[32];
 
    int32_t nrec;
    int32_t nsamp;
 
    int16_t syear;
    int16_t sday;
    int32_t smsec;
    int16_t eyear;
    int16_t eday;
    int32_t emsec;
    int32_t orbit;
    char dtype[8];
 
    int32_t ntilts;
    int16_t tilt_flags[20];
    int16_t tilt_ranges[2][20];
 
    char *flagnames;
    int32_t flagmask;
 
    int32_t year;
    int32_t day;
    int32_t msec;
 
    int32_t *year_cache;
    int32_t *day_cache;
    int32_t *msec_cache;
 
    float *longitude;
    float *latitude;
    
    float *geonav[6];
 
    float *lon_cntl;
    float *lat_cntl;
    float *cntl_pnts;
    float *cntl_pnts_cache;
    float *spline_arr;
 
    int32_t nprod;
    char *prodname[1000];
    float bv_unscaled[1000];
    int16_t bv_scaled[1000];
    int32_t thirdDim[1000];
  
    float **l2_data;
    int32_t *l2_flags;
 
    byte eng_qual[4];
    byte s_flags[4];
    int32_t nflag[8];
 
    int32_t geointerp;
 
    byte *mside;
    byte *detnum;
    int32_t *pixnum;
 
    // area weighting variables
    float *lat1;     // lat1 for corner of pixel
    float *lon1;     // lon1 for corner of pixel
    float *lat2;     // lat2 for corner of pixel
    float *lon2;     // lon2 for corner of pixel
    byte lat2Valid;  // does lat2 and lon2 contain valid coordinates
 
    int wavelength[250];
 
    int32_t bandsPerPixel;
} l2_prod;
 
typedef struct meta_l2Struct {
    char *product_name; /* ATTR Product name(file name)         */
    char *title;
    char *data_center; /* ATTR data_center, processing center  */
    char *mission; /* ATTR mission                         */
    char *mission_char; /* ATTR Mission Characteristics         */
    char *sensor_name; /* ATTR sensor name                     */
    char *sensor; /* ATTR sensor                          */
    char *sensor_char; /* ATTR instrumentInformation          */
    char *sw_id; /* ATTR Software ID                     */
    char *infiles; /* ATTR Input files                     */
    char *stime; /* ATTR Start time                      */
    char *etime; /* ATTR End time                        */
    char *ctime; /* ATTR scene center time               */
    char *ntime; /* ATTR Node crossing time              */
    char *snode; /* ATTR Start Node                      */
    char *enode; /* ATTR End Node                        */
    int orbnum; /* ATTR orbit number                    */
    char *norad1; /* ATTR NORAD elements, first line      */
    char *norad2; /* ATTR NORAD elements, second line     */
    int pix_start; /* ATTR LAC Pixel Start Number          */
    int pix_sub; /* ATTR LAC Pixel Subsampling           */
    int ncrec; /* ATTR scene center scan line          */
    int nfrec; /* ATTR number of filled scan line      */
    byte ff_mis; /* ATTR FF missing frames               */
    byte sd_mis; /* ATTR SDPS missing frames             */
    float flags_pc[32]; /* MFSD % data for each quality flag    */
    char *lat_units; /* ATTR Latitude units                  */
    char *lon_units; /* ATTR Longitude units                 */
    float northlat; /* ATTR Northernmost latitude           */
    float southlat; /* ATTR Southernmost latitude           */
    float westlon; /* ATTR Westernmost longitude           */
    float eastlon; /* ATTR Easternmost longitude           */
    float startclat; /* ATTR Start Center Latitude           */
    float startclon; /* ATTR Start Center Longitude          */
    float endclat; /* ATTR End Center Latitude             */
    float endclon; /* ATTR End Center Longitude            */
    float nodel; /* ATTR Orbit node longitude            */
    int ntilts; /* MFSD Sensor Tilt                     */
    /* Calibration Vgroup */
    short entry_year;
    short entry_day;
    short ref_year;
    short ref_day;
    short ref_minute;
} meta_l2Type;
 
 
/* Prototypes */
void free_rowgroup_cache();
void init_rowgroup_cache();
int32_t get_dtype(int32_t dtype, ds_format_t fileformat);
int32_t openL2(const char *, char *, l2_prod *);
int32_t reopenL2(int32_t, l2_prod *);
int32_t readL2(l2_prod *l2_str, int32_t ifile, int32_t recnum, int32_t iprod,
        unsigned char *scan_in_rowgroup);
int32_t readlonlat(l2_prod *l2_str, int32_t ifile, int32_t *start, int32_t *edges,
        unsigned char *scan_in_rowgroup);
int32_t closeL2(l2_prod *, int32_t);
int32_t freeL2(l2_prod *);
int32_t findprod(l2_prod *, char*);
int32_t readL2meta(meta_l2Type *, int32_t);
int32_t freeL2meta(meta_l2Type *);
int32_t getL3units(l2_prod *, int32_t, char *, char *);
 
enum L2PixelMode_t {L2PixelOff, L2PixelCorner, L2PixelDelta};
 
void enableL2PixelArea(enum L2PixelMode_t val);
 
#ifdef __cplusplus
}
#endif
#endif