vertex.c File Reference

Vedit library - vertex manipulation. More...

#include <grass/vedit.h>

Include dependency graph for vertex.c:

Go to the source code of this file.

Functions
int	Vedit_move_vertex (struct Map_info *Map, struct Map_info **BgMap, int nbgmaps, struct ilist *List, struct line_pnts *coord, double thresh_coords, double thresh_snap, double move_x, double move_y, double move_z, int move_first, int snap)
	Move all vertices in bounding box(es) More...
int	Vedit_add_vertex (struct Map_info *Map, struct ilist *List, struct line_pnts *coord, double thresh)
	Add new vertex to line. More...
int	Vedit_remove_vertex (struct Map_info *Map, struct ilist *List, struct line_pnts *coord, double thresh)
	Remove vertex from line. More...

Detailed Description

Vedit library - vertex manipulation.

(C) 2006-2008 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

Jachym Cepicky <jachym.cepicky gmail.com>

Martin Landa <landa.martin gmail.com>

Definition in file vertex.c.

Function Documentation

Vedit_add_vertex()

int Vedit_add_vertex	(	struct Map_info *	Map,
		struct ilist *	List,
		struct line_pnts *	coord,
		double	thresh
	)

Add new vertex to line.

Shape of line is not changed.

Todo:

3D

Parameters

Map	pointer to Map_info
List	list of lines
coord	points location
thresh	find line in given threshold

Returns

number of add vertices

-1 on error

Definition at line 194 of file vertex.c.

Vedit_move_vertex()

int Vedit_move_vertex	(	struct Map_info *	Map,
		struct Map_info **	BgMap,
		int	nbgmaps,
		struct ilist *	List,
		struct line_pnts *	coord,
		double	thresh_coords,
		double	thresh_snap,
		double	move_x,
		double	move_y,
		double	move_z,
		int	move_first,
		int	snap
	)

Move all vertices in bounding box(es)

Parameters

Map	pointer to Map_info
BgMap,nbgmaps	list of background vector maps for snapping
List	list of selected lines
coord	points location
thresh_coords	threshold value for selecting lines
thresh_snap	threshold value used for snapping
move_x,move_y,move_z	direction (move_z is used when map is 3D)
move_first	move only first vertex found in the bounding box
snap	snapping mode (see vedit.h)

Returns

number of moved vertices

-1 on error

Definition at line 33 of file vertex.c.

Vedit_remove_vertex()

int Vedit_remove_vertex	(	struct Map_info *	Map,
		struct ilist *	List,
		struct line_pnts *	coord,
		double	thresh
	)

Remove vertex from line.

Todo:

3D

Parameters

Map	pointer to Map_info
List	list of selected lines
coord	points location
thresh	threshold value to find a line

Returns

number of removed vertices

-1 on error

Definition at line 284 of file vertex.c.