GRASS Programmer's Manual
6.4.1(2011)
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#include <math.h>
#include <grass/gis.h>
#include <grass/Vect.h>
#include <grass/glocale.h>
Go to the source code of this file.
Data Structures | |
struct | XPNT |
struct | NEW |
Functions | |
int | add_item (int id, struct ilist *list) |
void | Vect_snap_lines_list (struct Map_info *Map, struct ilist *List_lines, double thresh, struct Map_info *Err) |
Snap selected lines to existing vertex in threshold. | |
void | Vect_snap_lines (struct Map_info *Map, int type, double thresh, struct Map_info *Err) |
Snap lines in vector map to existing vertex in threshold. |
int add_item | ( | int | id, |
struct ilist * | list | ||
) |
Definition at line 44 of file Vlib/snap.c.
References dig_list_add().
Referenced by Vect_snap_lines_list().
void Vect_snap_lines | ( | struct Map_info * | Map, |
int | type, | ||
double | thresh, | ||
struct Map_info * | Err | ||
) |
Snap lines in vector map to existing vertex in threshold.
For details see Vect_snap_lines_list()
[in] | Map | input map where vertices will be snapped |
[in] | type | type of lines to snap |
[in] | thresh | threshold in which snap vertices |
[out] | Err | vector map where lines representing snap are written or NULL |
Definition at line 442 of file Vlib/snap.c.
References dig_list_add(), Vect_destroy_list(), Vect_get_num_lines(), Vect_line_alive(), Vect_new_list(), Vect_read_line(), and Vect_snap_lines_list().
void Vect_snap_lines_list | ( | struct Map_info * | Map, |
struct ilist * | List_lines, | ||
double | thresh, | ||
struct Map_info * | Err | ||
) |
Snap selected lines to existing vertex in threshold.
Snap selected lines to existing vertices.
Lines showing how vertices were snapped may be optionally written to error map. Input map must be opened on level 2 for update at least on GV_BUILD_BASE.
[in] | Map | input map where vertices will be snapped |
[in] | List_lines | list of lines to snap |
[in] | thresh | threshold in which snap vertices |
[out] | Err | vector map where lines representing snap are written or NULL |
Definition at line 80 of file Vlib/snap.c.
References add_item(), NEW::along, XPNT::anchor, NEW::anchor, Rect::boundary, dig_distance2_point_to_line(), RTreeDestroyNode(), RTreeInsertRect(), RTreeNewIndex(), RTreeSearch(), Vect_append_point(), Vect_delete_line(), Vect_destroy_cats_struct(), Vect_destroy_line_struct(), Vect_line_alive(), Vect_line_prune(), Vect_new_cats_struct(), Vect_new_line_struct(), Vect_new_list(), Vect_read_line(), Vect_reset_line(), Vect_reset_list(), Vect_rewrite_line(), Vect_write_line(), XPNT::x, and XPNT::y.
Referenced by Vect_snap_lines().