P_area Struct Reference

Area (topology) info. More...

#include <dig_structs.h>

Data Fields
plus_t	n_lines
	Number of boundary lines.
plus_t	alloc_lines
	Allocated space for lines.
plus_t *	lines
	List of boundary lines.
plus_t	centroid
	Number of first centroid within area.
plus_t	n_isles
	Number of islands inside.
plus_t	alloc_isles
	Allocated space for isles.
plus_t *	isles
	1st generation interior islands

Detailed Description

Area (topology) info.

Definition at line 1571 of file dig_structs.h.

Field Documentation

alloc_isles

plus_t P_area::alloc_isles

Allocated space for isles.

Definition at line 1601 of file dig_structs.h.

Referenced by dig_area_add_isle(), and dig_free_area().

alloc_lines

plus_t P_area::alloc_lines

Allocated space for lines.

Definition at line 1579 of file dig_structs.h.

Referenced by dig_free_area().

centroid

plus_t P_area::centroid

Number of first centroid within area.

Definition at line 1593 of file dig_structs.h.

Referenced by dig_add_area(), dig_del_area(), dig_Rd_P_area(), dig_Wr_P_area(), V2__add_line_to_topo_nat(), V2__delete_line_from_topo_nat(), Vect__load_plus_pg(), Vect_attach_centroids(), Vect_build_nat(), Vect_get_area_centroid(), and Vect_topo_dump().

isles

plus_t* P_area::isles

1st generation interior islands

Definition at line 1605 of file dig_structs.h.

Referenced by dig_area_add_isle(), dig_area_del_isle(), dig_del_area(), dig_free_area(), dig_Rd_P_area(), dig_Wr_P_area(), Vect_find_area(), Vect_get_area_area(), Vect_get_area_isle(), Vect_get_area_perimeter(), Vect_point_in_area(), and Vect_topo_dump().

lines

plus_t* P_area::lines

List of boundary lines.

• negative means direction N2 to N1
• lines are in clockwise order

Definition at line 1586 of file dig_structs.h.

Referenced by dig_add_area(), dig_del_area(), dig_find_area_box(), dig_free_area(), dig_Rd_P_area(), dig_spidx_del_area(), dig_Wr_P_area(), Vect_get_area_boundaries(), Vect_get_area_points(), Vect_get_area_points_geos(), Vect_isle_find_area(), Vect_point_in_area_outer_ring(), and Vect_topo_dump().

n_isles

plus_t P_area::n_isles

Number of islands inside.

Definition at line 1597 of file dig_structs.h.

Referenced by dig_area_add_isle(), dig_area_del_isle(), dig_del_area(), dig_Rd_P_area(), dig_Wr_P_area(), dig_Wr_Plus_head(), Vect_find_area(), Vect_get_area_area(), Vect_get_area_num_isles(), Vect_get_area_perimeter(), Vect_point_in_area(), Vect_tin_get_z(), and Vect_topo_dump().

n_lines

plus_t P_area::n_lines

Number of boundary lines.

Definition at line 1575 of file dig_structs.h.

Referenced by dig_add_area(), dig_del_area(), dig_Rd_P_area(), dig_Wr_P_area(), dig_Wr_Plus_head(), Vect_get_area_boundaries(), Vect_get_area_points(), Vect_get_area_points_geos(), Vect_point_in_area_outer_ring(), and Vect_topo_dump().

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The documentation for this struct was generated from the following file:

• dig_structs.h