GRASS GIS 8 Programmer's Manual
8.5.0dev(2024)-4d852dd394
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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 (const struct line_pnts *Points) |
void pg_addedge | ( | struct planar_graph * | pg, |
int | v1, | ||
int | v2 | ||
) |
Definition at line 410 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.
struct planar_graph* pg_create | ( | const struct line_pnts * | Points | ) |
struct planar_graph* pg_create_struct | ( | int | n, |
int | e | ||
) |
Definition at line 346 of file dgraph.c.
References planar_graph::e, planar_graph::eallocated, planar_graph::ecount, G_malloc, MAX, NULL, planar_graph::v, and planar_graph::vcount.
void pg_destroy_struct | ( | struct planar_graph * | pg | ) |
Definition at line 362 of file dgraph.c.
References pg_vertex::angles, planar_graph::e, pg_vertex::edges, G_free(), planar_graph::v, and planar_graph::vcount.
int pg_existsedge | ( | struct planar_graph * | pg, |
int | v1, | ||
int | v2 | ||
) |
Definition at line 376 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().