goci.c File Reference

#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include <proj.h>
#include <math.h>
#include "hdf5.h"
#include "hdf5_hl.h"
#include "goci.h"

Include dependency graph for goci.c:

Go to the source code of this file.

Functions
int	goci_proj4_open (goci_l1b_t *l1b)
void	goci_proj4_close (goci_l1b_t *l1b)
int	goci_l1b_open (const char *src_path, goci_l1b_t **goci_l1b)
int	goci_l1b_close (goci_l1b_t *goci_l1b)
int	goci_l1b_get_date (goci_l1b_t *goci_l1b, char *tstr_name, int *year, int *month, int *day)
int	goci_l1b_get_time (goci_l1b_t *goci_l1b, char *tstr_name, int *hour, int *min, int *sec)
int	goci_l1b_get_band (goci_l1b_t *goci_l1b, int band, int line, uint32_t *buf)

Detailed Description

GOCI file format reader.

Author

Paul Martinolich

Naval Research Laboratory

Definition in file goci.c.

Function Documentation

goci_l1b_close()

int goci_l1b_close

(

goci_l1b_t *

goci_l1b

)

close GOCI bands

Parameters

[in]

goci_l1b

GOCI file

Close the GOCI file

Returns

0 for success, -2 for close error

Definition at line 370 of file goci.c.

goci_l1b_get_band()

int goci_l1b_get_band	(	goci_l1b_t *	goci_l1b,
		int	band,
		int	line,
		uint32_t *	buf
	)

read specified band and line from GOCI file.

Parameters

[in]	goci_l1b	GOCI file
[in]	band	Band number to read (0-7)
[in]	line	Line to read
[out]	buf	buffer to contain data

This function reads a scan line from the GOCI data. The returned value can be converted to radiance by multiply the value by 1E-07.

Returns

0 for success, -4 for read error, -6 for invalid parameter

Definition at line 488 of file goci.c.

goci_l1b_get_date()

int goci_l1b_get_date	(	goci_l1b_t *	goci_l1b,
		char *	tstr_name,
		int *	year,
		int *	month,
		int *	day
	)

read a date of GOCI data

Parameters

[in]	goci_l1b	GOCI l1b file information structure
[in]	tstr_name	name of time string to read from (char *)
[out]	year	Year
[out]	month	Month (1-12)
[out]	day	Day (1-31)

This function gets the date from the GOCI data file.

Returns

0 for success, -3 for invalid format

Definition at line 415 of file goci.c.

goci_l1b_get_time()

int goci_l1b_get_time	(	goci_l1b_t *	goci_l1b,
		char *	tstr_name,
		int *	hour,
		int *	min,
		int *	sec
	)

read a time of GOCI data

Parameters

[in]	goci_l1b	GOCI file
[in]	tstr_name	name of time string to read from (char *)
[out]	hour	Hour of day (0-23)
[out]	min	Minute (0-59)
[out]	sec	Second (0-59)

This function gets the time from the GOCI data file.

Returns

0 for success, -3 for invalid format

Definition at line 452 of file goci.c.

goci_l1b_open()

int goci_l1b_open	(	const char *	src_path,
		goci_l1b_t **	goci_l1b
	)

open GOCI bands

Parameters

[in]	src_path	path to one GOCI file
[out]	goci_l1b	GOCI file structure

Opens a GOCI data file and attaches to the main data set "Image Data" which is stored as a GRID.

Returns

-1 for open error, -2 for close error, -3 for invalid format -4 for read error, -5 for memory error W. Robinson, SAIC, Nov 2014, the position in the file is really ( radius, sub-sat lon, sub-sat lat ), so derive position accordingly W. Robinson, SAIC, 5 Dec 2014, set up the slot navigation to get better times

Definition at line 226 of file goci.c.

goci_proj4_close()

void goci_proj4_close

(

goci_l1b_t *

l1b

)

free all memory related to proj4

Parameters

[in/out]

goci_l1b GOCI file structure

Free up the memory used by the proj4 geolocation functions

Definition at line 205 of file goci.c.

goci_proj4_open()

int goci_proj4_open

(

goci_l1b_t *

l1b

)

init proj4 for GOCI geolocation

Parameters

[in/out]

goci_l1b GOCI file structure

Uses the information in the goci_l1b structure to init the proj4 structure for converting the geolocation information.

Returns

-1 for open error, -2 for close error, -4 for read error

Definition at line 31 of file goci.c.