area_poly2.c File Reference

GIS Library - Planimetric polygon area calculation routines. More...

#include <grass/gis.h>

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Functions
double	G_planimetric_polygon_area (const double *x, const double *y, int n)
	Calculates planimetric polygon area.

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Detailed Description

GIS Library - Planimetric polygon area calculation routines.

(C) 2001-2008 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author:

GRASS GIS Development Team

Date:

1999-2008

Definition in file area_poly2.c.

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Function Documentation

double G_planimetric_polygon_area	(	const double *	x,
		const double *	y,
		int	n
	)

Calculates planimetric polygon area.

Parameters:

[in]	x	array of x values
[in]	y	array of y values
[in]	n	number of x,y pairs

Returns:

double

Definition at line 29 of file area_poly2.c.

Referenced by G_area_of_polygon().