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).
int Vedit_add_vertex (struct Map_info *Map, struct ilist *List, struct line_pnts *coord, double thresh)
 Add new vertex to line.
int Vedit_remove_vertex (struct Map_info *Map, struct ilist *List, struct line_pnts *coord, double thresh)
 Remove vertex from line.

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>
Date:
2006-2008

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 vector map
List list of lines
coord points location
thresh find line in given threshold
Returns:
number of add verteces
-1 on error

Definition at line 197 of file vertex.c.

References 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(), and Vect_rewrite_line().

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 vector map
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 36 of file vertex.c.

References 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(), and Vedit_snap_point().

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 vector map
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 285 of file vertex.c.

References 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(), and Vect_rewrite_line().

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