#include <netcdf.h>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include <string.h>
#include <unistd.h>
#include <dfutils.h>
#include <genutils.h>
#include <l12_parms.h>
#include <l2_flags.h>
#include "l2extract.h"
#include "l2extract_3d_wv.h"

Include dependency graph for l2extract_netcdf.c:

Macros
#define	MAX_VARIABLES 512

#define	NCDIE(function)

#define	GEOBOX_INC 20.0

Functions
void	copyGlobalAttributes (int ncid_r, int ncid_w)

void	copyVariableAttributes (int ncid_r, int varid_r, int ncid_w, int varid_w)

int	checkIfInProdlist (const char prodlist, const char name)

void	set_attributes (const char name, int ncid_r, int ncid_w, int varid_r, int varid_w, int dimIds, size_t chunkSize, int deflateLevel, int shuffle, int numAtts, size_t chunkNelems, float chunkPreemption, int deflate, size_t typeSize, int numDims, nc_type *xtype)

void	copyVariable (int ncid_r, const char name, size_t start, size_t count, int dimIds, int ncid_w, void *data)

void	copyVariableSelectedIndexes (int ncid_r, const char name, size_t start, size_t count, int dimIds, int ncid_w, void data, int indexes, int dim_of_indexes)

int	extractNetCDF (const char infile, const char outfile, int spix, int epix, int sscan, int escan, const char prodlist, const char wavelist)

Macro Definition Documentation

◆ GEOBOX_INC

#define GEOBOX_INC 20.0

◆ MAX_VARIABLES

#define MAX_VARIABLES 512

Definition at line 23 of file l2extract_netcdf.c.

◆ NCDIE

#define NCDIE ( function )

Value:

    {                                                                                                    \
        int status = function;                                                                           \
        switch (status) {                                                                                \
            case NC_NOERR:                                                                               \
                break;                                                                                   \
            default:                                                                                     \
                printf("NetCDF error: file %s, line %d, %s\n", __FILE__, __LINE__, nc_strerror(status)); \
                exit(1);                                                                                 \
        }                                                                                                \
    }

Definition at line 25 of file l2extract_netcdf.c.

Function Documentation

◆ checkIfInProdlist()

int checkIfInProdlist	(	const char *	prodlist,
		const char *	name
	)

Definition at line 62 of file l2extract_netcdf.c.

◆ copyGlobalAttributes()

void copyGlobalAttributes	(	int	ncid_r,
		int	ncid_w
	)

Definition at line 37 of file l2extract_netcdf.c.

◆ copyVariable()

void copyVariable	(	int	ncid_r,
		const char *	name,
		size_t *	start,
		size_t *	count,
		int *	dimIds,
		int	ncid_w,
		void *	data
	)

copy a piece of a variable and all of it's attributes to another file

Parameters

ncid_r	netCDF file or group to read
name	name of the variable
start	location to start copying from
count	how many of each dimension to copy
dimIds	dimension IDs from the destination file to attach to the new variable
ncid_w	netCDF file or group to write the variable to
data	write this data to the new variable or copy from read variable if NULL

Definition at line 131 of file l2extract_netcdf.c.

◆ copyVariableAttributes()

void copyVariableAttributes	(	int	ncid_r,
		int	varid_r,
		int	ncid_w,
		int	varid_w
	)

Definition at line 49 of file l2extract_netcdf.c.

◆ copyVariableSelectedIndexes()

void copyVariableSelectedIndexes	(	int	ncid_r,
		const char *	name,
		size_t *	start,
		size_t *	count,
		int *	dimIds,
		int	ncid_w,
		void *	data,
		int *	indexes,
		int	dim_of_indexes
	)

copy a piece of a variable and all of it's attributes to another file. Slicing is performed along a selected dimension defined by a set of indexes along the dimension

Parameters

ncid_r	netCDF file or group to read
name	name of the variable
start	location to start copying from
count	how many of each dimension to copy
dimIds	dimension IDs from the destination file to attach to the new variable
ncid_w	netCDF file or group to write the variable to
data	write this data to the new variable or copy from read variable if
dim_of_indexes	- index of the dimension along which slicing is performed.
indexes	indexes along the dimension to be selected for output NULL

Definition at line 200 of file l2extract_netcdf.c.

◆ extractNetCDF()

int extractNetCDF	(	const char *	infile,
		const char *	outfile,
		int	spix,
		int	epix,
		int	sscan,
		int	escan,
		const char *	prodlist,
		const char *	wavelist
	)

extract a L2 netCDF file

Parameters

infile	input file name
outfile	output file name
spix	start pixel (1 based)
epix	ending pixel (1 based)
sscan	start line (1 based)
escan	end line (1 based)
prodlist	product list, comma separated, empty string outputs all products

Returns: 0 = success

Definition at line 293 of file l2extract_netcdf.c.

◆ set_attributes()

void set_attributes	(	const char *	name,
		int	ncid_r,
		int	ncid_w,
		int	varid_r,
		int *	varid_w,
		int *	dimIds,
		size_t *	chunkSize,
		int *	deflateLevel,
		int *	shuffle,
		int *	numAtts,
		size_t *	chunkNelems,
		float *	chunkPreemption,
		int *	deflate,
		size_t *	typeSize,
		int *	numDims,
		nc_type *	xtype
	)

Copies all the attributes and chunking/compression properties.

Parameters

name	- name of the variable
ncid_r	- id of a nc input group
ncid_w	- id of a nc output group
varid_r	- id of a nc input variable
varid_w	- id of a nc output variable
dimIds	- ids of dimensions
chunkSize	- chunk size
deflateLevel	- deflation level
shuffle	- shuffle flag. it stores the first byte of all of a variable's values in the chunk contiguously, followed by all the second bytes, and so on. If the values are not all wildly different, this can make the data more easily compressible
numAtts	- number of attributs
chunkNelems	- The number of chunk slots in the raw data chunk cache hash table will be put here
chunkPreemption	- The preemption will be put here. The preemtion value is between 0 and 1 inclusive and indicates how much chunks that have been fully read are favored for preemption. A value of zero means fully read chunks are treated no differently than other chunks (the preemption is strictly LRU) while a value of one means fully read chunks are always preempted before other chunks
deflate	- True to turn on deflation for this variable.
typeSize	- type
numDims	- number of dimensions
xtype	- nc type of the variable.

Definition at line 103 of file l2extract_netcdf.c.

Macros

Functions

Macro Definition Documentation

◆ GEOBOX_INC

◆ MAX_VARIABLES

◆ NCDIE

Function Documentation

◆ checkIfInProdlist()

◆ copyGlobalAttributes()

◆ copyVariable()

◆ copyVariableAttributes()

◆ copyVariableSelectedIndexes()

◆ extractNetCDF()

◆ set_attributes()