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hs_coord_t

NAME

/home/serge/sources/hyantes/geocode/hyantes.h - declaration of exported hyantes functions include this file to get definitions from the hyantes library

SYNOPSIS

Data Structures

struct hs_coord
structure containing the coordinates of an area all coordinate are given in degree which means that -90 <= latitude <= 90 and -180 <= longitude <= +180
struct hs_potential
structure containing the coordinate of a potential all coordiante are given in radians which means that -90 <= latitude <= +90 and -180 <= longitude <= +180

Typedefs

typedef struct hs_coord hs_coord_t
structure containing the coordinates of an area all coordinate are given in degree which means that -90 <= latitude <= 90 and -180 <= longitude <= +180
typedef struct hs_potential hs_potential_t
structure containing the coordinate of a potential all coordiante are given in radians which means that -90 <= latitude <= +90 and -180 <= longitude <= +180

Enumerations

enum hs_option_t { HS_PARSE_ONLY, HS_THRESHOLD, HS_LOAD_RAW, HS_LOAD_PRECOMPUTED, HS_SMOOTH_FUNC }
enumeration of various options for hyantes

Functions

hs_potential_t * hs_smooth (int resoLat, int resoLon, hs_coord_t visu, FILE *pFileReference)
perform the smoothing of target area inside visu, using potentials from pFileReference pFileReference is either in raw or precomputed format, as given by hs_set(HS_LOAD_RAW|HS_LOAD_PRECOMPUTED) the smoothing is performed using smoothing method given by hs_set(HS_SMOOTH_FUNC, ... ) the resolution of the output matrix will be resoLat x resoLon
const char ** hs_list_smoothing (size_t *sz)
list all available smoothing methods a smoothing method always take a radius and a distance (in kilometers) as input and returns a new distance (possibly zero)
unsigned long hs_status ()
observer of the execution of the computation
int hs_set (hs_option_t,...)

hs_potential_t * hs_smoothing (int resoLat, int resoLon, const char *function_name, double function_param, hs_coord_t visu, FILE *pFileReference)
perform the smoothing of target area inside visu, using potentials from pFileReference the smoothing is performed using function_name smoothing method, with a radius of function_param the resolution of the output matrix will be resoLat x resoLon

Detailed Description

declaration of exported hyantes functions include this file to get definitions from the hyantes library

Author:

serge guelton

Date:

2008-02-13

Definition in file hyantes.h.

Enumeration Type Documentation

enum hs_option_t

enumeration of various options for hyantes

Enumerator:

HS_PARSE_ONLY

only require generation of precomputed quadtree, extra arg : 'char *filename'

HS_THRESHOLD

set the threshold used for ignoring some area, extra arg: 'double threshold'

HS_LOAD_RAW

tells the library to consider input file as a raw data file, no extra arg

HS_LOAD_PRECOMPUTED

tells the library to consider input file as a precomputed file, no extra arg

HS_SMOOTH_FUNC

tells the library to use giben function and param to perform smoothing, extra arg: 'char *funcname, double extra param, ...

Definition at line 72 of file hyantes.h.

Function Documentation

const char** hs_list_smoothing (size_t * sz)

list all available smoothing methods a smoothing method always take a radius and a distance (in kilometers) as input and returns a new distance (possibly zero)

Parameters:

sz pointer to the number of smoothing methods

Returns:

array of string constant of size *sz. Memory is still owned by hyantes

Definition at line 57 of file hyantes.c.

References list_smoothing().

hs_potential_t* hs_smooth (int _resoLat, int _resoLon, hs_coord_t visu, FILE * pFileReference)

perform the smoothing of target area inside visu, using potentials from pFileReference pFileReference is either in raw or precomputed format, as given by hs_set(HS_LOAD_RAW|HS_LOAD_PRECOMPUTED) the smoothing is performed using smoothing method given by hs_set(HS_SMOOTH_FUNC, ... ) the resolution of the output matrix will be resoLat x resoLon

Parameters:

resoLat number of latitude points computed
resoLon number of longitude points computed
visu visualization window
pFileReference file containg the data in the format latitude longitude potential latitude longitude potential ... latitude longitude potential where latitude and longitude are given in degrees

Returns:

an allocated array of size resoLat x resoLon containing triplets (lat, lon, pot) or NULL if an error occured

Definition at line 93 of file hyantes.c.

References build_quadtree(), qt::coords, create_planartree(), do_smoothing(), free_quadtree(), hs_potential::lat, hs_potential::lon, hs_coord::MLat, hs_coord::mLat, hs_coord::MLon, hs_coord::mLon, read_input(), ptree::size, and smoothing_error.

Referenced by hs_smoothing().

hs_potential_t* hs_smoothing (int _resoLat, int _resoLon, const char * function_name, double function_param, hs_coord_t visu, FILE * pFileReference)

perform the smoothing of target area inside visu, using potentials from pFileReference the smoothing is performed using function_name smoothing method, with a radius of function_param the resolution of the output matrix will be resoLat x resoLon

Parameters:

resoLat number of latitude points computed
resoLon number of longitude points computed
function_name name of a smoothing method listed by hs_list_smoothing
function_param parameter (in kilometers) of the smoothing method
visu visualization window
pFileReference file containg the data in the format latitude longitude potential latitude longitude potential ... latitude longitude potential where latitude and longitude are given in degrees

Returns:

an allocated array of size resoLat x resoLon containing triplets (lat, lon, pot) or NULL if an error occured

Definition at line 300 of file hyantes.c.

References HS_LOAD_RAW, hs_smooth(), and HS_SMOOTH_FUNC.

unsigned long hs_status ()

observer of the execution of the computation

Returns:

number of executed tasks from the beginning of the computation It should be 0 before the beginning And resoLat x resoLon, in the end

Definition at line 68 of file hyantes.c.

Author

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