dgraph.h File Reference

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Data Structures
struct	pg_edge
struct	pg_vertex
struct	planar_graph

Functions
struct planar_graph *	pg_create_struct (int n, int e)
void	pg_destroy_struct (struct planar_graph *pg)
int	pg_existsedge (struct planar_graph *pg, int v1, int v2)
void	pg_addedge (struct planar_graph *pg, int v1, int v2)
struct planar_graph *	pg_create (struct line_pnts *Points)

Function Documentation

void pg_addedge	(	struct planar_graph *	pg,
		int	v1,
		int	v2
	)

Definition at line 409 of file dgraph.c.

References planar_graph::e, planar_graph::eallocated, planar_graph::ecount, G_debug(), G_fatal_error(), pg_addedge1(), pg_existsedge(), planar_graph::v, pg_edge::v1, pg_edge::v2, planar_graph::vcount, pg_edge::visited_left, pg_edge::visited_right, pg_edge::winding_left, and pg_edge::winding_right.

Referenced by pg_create().

struct planar_graph* pg_create

(

struct line_pnts *

Points

)

Definition at line 442 of file dgraph.c.

References seg_intersection_list::a, pg_vertex::angles, seg_intersection_list::count, destroy_si_struct(), pg_vertex::ecount, pg_vertex::edges, find_all_intersections(), G_debug(), intersection_point::group, seg_intersections::group_count, seg_intersections::il, seg_intersections::ilcount, seg_intersection::ip, seg_intersections::ip, seg_intersections::ipcount, pg_addedge(), pg_create_struct(), planar_graph::v, pg_edge::v1, pg_edge::v2, planar_graph::vcount, pg_vertex::x, intersection_point::x, pg_vertex::y, and intersection_point::y.

Referenced by Vect_line_buffer2().

struct planar_graph* pg_create_struct	(	int	n,
		int	e
	)

Definition at line 343 of file dgraph.c.

References planar_graph::e, planar_graph::eallocated, planar_graph::ecount, MAX, n, NULL, planar_graph::v, and planar_graph::vcount.

Referenced by pg_create().

void pg_destroy_struct

(

struct planar_graph *

pg

)

Definition at line 359 of file dgraph.c.

References pg_vertex::angles, planar_graph::e, pg_vertex::edges, G_free(), planar_graph::v, and planar_graph::vcount.

Referenced by Vect_line_buffer2().

int pg_existsedge	(	struct planar_graph *	pg,
		int	v1,
		int	v2
	)

Definition at line 373 of file dgraph.c.

References pg_vertex::ecount, pg_vertex::edges, planar_graph::v, pg_edge::v1, and pg_edge::v2.

Referenced by pg_addedge().