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

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 verteces

-1 on error

Definition at line 194 of file vertex.c.

References G_debug(), main::GV_LINES, NULL, dialogs::type, Vect_destroy_cats_struct(), Vect_destroy_line_struct(), Vect_line_alive(), Vect_line_distance(), Vect_line_insert_point(), Vect_line_prune(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_points_distance(), Vect_read_line(), Vect_rewrite_line(), and y.

Referenced by wxdigit.IVDigit::InitCats().

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 verteces

-1 on error

Definition at line 33 of file vertex.c.

References G_debug(), G_zero(), main::GV_LINES, NULL, dialogs::type, Vect_destroy_cats_struct(), Vect_destroy_line_struct(), Vect_is_3d(), Vect_line_alive(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_points_distance(), Vect_read_line(), Vect_rewrite_line(), Vedit_snap_point(), and y.

Referenced by wxdigit.IVDigit::MoveSelectedVertex().

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 282 of file vertex.c.

References G_debug(), main::GV_LINES, dialogs::type, Vect_destroy_cats_struct(), Vect_destroy_line_struct(), Vect_line_alive(), Vect_line_delete_point(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_points_distance(), Vect_read_line(), Vect_rewrite_line(), and y.

Referenced by wxdigit.IVDigit::InitCats().