overlap.c File Reference

Vector library - region/window overlap. More...

#include <grass/vector.h>

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Functions
int	V__map_overlap (struct Map_info *Map, double n, double s, double e, double w)

Detailed Description

Vector library - region/window overlap.

Higher level functions for reading/writing/manipulating vectors.

(C) 2001-2009 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

Original author CERL, probably Dave Gerdes or Mike Higgins.

Update to GRASS 5.7 Radim Blazek and David D. Gray.

Definition in file overlap.c.

Function Documentation

V__map_overlap()

int V__map_overlap	(	struct Map_info *	Map,
		double	n,
		double	s,
		double	e,
		double	w
	)

Check if region overlaps with map extent.

Parameters

Map	vector map
n,s,e,w	region bounding box

Returns

1 if regions overlap

0 if not

Definition at line 28 of file overlap.c.