#include <netcdf>
#include <cstdio>
#include "lonlat2pixline.h"
#include <readL2scan.h>
#include <string.h>
#include <math.h>
#include <string>
#include <vector>
#include <hdf.h>
#include <mfhdf.h>

Include dependency graph for lonlat2pixline.cpp:

Functions
void	check_nc (int status, char *file, int line)

int	lonlat2pixline (lonlat2pixline_t *params)

int	lonlat2pixline1 (char input_filename, char geo_filename, int32_t resolution, float SWlon, float SWlat, float NElon, float NElat, int32_t spixl, int32_t epixl, int32_t sline, int32_t eline)

int	lonlat2pixline2 (char input_filename, char geo_filename, int32_t resolution, float lon, float lat, int32_t dx, int32_t dy, int32_t spixl, int32_t epixl, int32_t sline, int32_t eline)

int	lonlat2pixline3 (char input_filename, char geo_filename, int32_t resolution, float lon, float lat, int32_t pixl, int32_t line)

Function Documentation

◆ check_nc()

void check_nc	(	int	status,
		char *	file,
		int	line
	)

Print NetCDF error message and exit.

Parameters

[in]	status	NetCDF error status.
[in]	file	Originating FILE.
[in]	line	Originating LINE.

Definition at line 58 of file lonlat2pixline.cpp.

◆ lonlat2pixline()

int lonlat2pixline ( lonlat2pixline_t * params )

Function that returns the pixel, line of a lon, lat or lon, lat box for the given L1, L2 or MODIS GEO file.

Note that if a MODIS GEO file is given with a resolution of 500 or 250 the pixl and line could be off by 1 or 3 respectively.

box usage:
params->SWlon - SW longitude corner of box params->SWlat - SW latitude corner of box params->NElon - NE longitude corner of box params->NElat - NE latitude corner of box params->want_pixbox - 0
params->pix_srch - 0
params->input_filename - L1, L2 or GEO file
params->geo_filename - MODIS GEO file
params->resolution - output resolution if MODIS (-1,1000,500,250)

pix usage:
params->SWlon - longitude value of location
params->SWlat - latitude value of location
params->want_pixbox - 0 for single point
1 for box defined by xbox, ybox (pixels)
params->pix_srch - 1
params->xbox - num pixels on either side of location (want_pixbox=1)
params->ybox - num scan lines on either side of location
params->input_filename - L1 or L2 file
params->geo_filename - MODIS GEO file
params->resolution - output resolution if MODIS (-1,1000,500,250)

other inputs:
want_verbose(gloabal) - 0 for no output to stdout

1 for status messages

outputs:
params->box_failed - 1 if the box was not fully extracted, else 0
params->pixLon - actual longitude of the pixel found
params->pixLat - actual latitude of the pixel found
params->spix - start pixel
params->epix - end pixel
params->sline - start line
params->eline - end line

Parameters

params a structure that controls the function.

Returns: 0 = all OK
1=error
110=full box not extracted
120=whole file extracted

Definition at line 70 of file lonlat2pixline.cpp.

◆ lonlat2pixline1()

int lonlat2pixline1	(	char *	input_filename,
		char *	geo_filename,
		int32_t	resolution,
		float	SWlon,
		float	SWlat,
		float	NElon,
		float	NElat,
		int32_t *	spixl,
		int32_t *	epixl,
		int32_t *	sline,
		int32_t *	eline
	)

Definition at line 758 of file lonlat2pixline.cpp.

◆ lonlat2pixline2()

int lonlat2pixline2	(	char *	input_filename,
		char *	geo_filename,
		int32_t	resolution,
		float	lon,
		float	lat,
		int32_t	dx,
		int32_t	dy,
		int32_t *	spixl,
		int32_t *	epixl,
		int32_t *	sline,
		int32_t *	eline
	)

Definition at line 784 of file lonlat2pixline.cpp.

◆ lonlat2pixline3()

int lonlat2pixline3	(	char *	input_filename,
		char *	geo_filename,
		int32_t	resolution,
		float	lon,
		float	lat,
		int32_t *	pixl,
		int32_t *	line
	)