spatial.cpp File Reference

#include "geoslib_old_f.h"
#include "Basic/Utilities.hpp"
#include "Db/Db.hpp"

Functions
int	cgi (Db *db, int iatt, double *center, double *mvalue, double *mvector, double *inertia, double *wztot)
int	spatial (Db *db, double *totab, double *parea, double *eqarea)

Function Documentation

int cgi	(	Db *	db,
		int	iatt,
		double *	center,
		double *	mvalue,
		double *	mvector,
		double *	inertia,
		double *	wztot
	)

Calculate the Center of Gravity

Returns

Error returned code

Parameters

[in]	db	Db structure
[in]	iatt	Rank of the optional attribute
[out]	center	Array for the center of gravity
[out]	mvalue	Array of eigen values (normalized)
[out]	mvector	Array of eigen vectors
[out]	inertia	Value of the inertia
[out]	wztot	Sum of weights

Remarks

The array mvalue must be dimensionned to ndim

The array mvector must be dimensionned to ndim * ndim

int spatial	(	Db *	db,
		double *	totab,
		double *	parea,
		double *	eqarea
	)

Calculate several Spatial indices

Returns

Error returned code

Parameters

[in]	db	Db structure
[out]	totab	Total Abundance
[out]	parea	Positive area
[out]	eqarea	Equivalent area

Remarks

This functions have been developped in the scope of the UE

program Fisboat, DG-Fish, STREP #502572