dig_externs.h File Reference

#include <grass/gis.h>

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Functions
void *	dig_alloc_space (int, int *, int, void *, int)
void *	dig__alloc_space (int, int *, int, void *, int)
void *	dig_falloc (int, int)
void *	dig_frealloc (void *, int, int, int)
void *	dig__falloc (int, int)
void *	dig__frealloc (void *, int, int, int)
float	dig_calc_begin_angle (const struct line_pnts *, double)
float	dig_calc_end_angle (const struct line_pnts *, double)
int	dig_line_degenerate (const struct line_pnts *)
int	dig_is_line_degenerate (const struct line_pnts *, double)
int	dig_box_copy (struct bound_box *, struct bound_box *)
int	dig_box_extend (struct bound_box *, struct bound_box *)
int	dig_line_box (const struct line_pnts *, struct bound_box *)
int	dig_cidx_init (struct Plus_head *)
	Initialize Plus_head structure (cidx) More...
void	dig_cidx_free (struct Plus_head *)
int	dig_cidx_add_cat (struct Plus_head *, int, int, int, int)
int	dig_cidx_add_cat_sorted (struct Plus_head *, int, int, int, int)
int	dig_cidx_del_cat (struct Plus_head *, int, int, int, int)
void	dig_cidx_sort (struct Plus_head *)
int	dig_write_cidx_head (struct gvfile *, struct Plus_head *)
int	dig_read_cidx_head (struct gvfile *, struct Plus_head *)
	Read header of cidx file. More...
int	dig_write_cidx (struct gvfile *, struct Plus_head *)
int	dig_read_cidx (struct gvfile *, struct Plus_head *, int)
	Read spatial index file. More...
off_t	dig_ftell (struct gvfile *file)
	Get struct gvfile position. More...
int	dig_fseek (struct gvfile *file, off_t offset, int whence)
	Set struct gvfile position. More...
void	dig_rewind (struct gvfile *file)
	Rewind file position. More...
int	dig_fflush (struct gvfile *file)
	Flush struct gvfile. More...
size_t	dig_fread (void *ptr, size_t size, size_t nmemb, struct gvfile *file)
	Read struct gvfile. More...
size_t	dig_fwrite (const void *ptr, size_t size, size_t nmemb, struct gvfile *file)
	Write struct gvfile. More...
void	dig_file_init (struct gvfile *file)
	Initialize gvfile structure. More...
int	dig_file_load (struct gvfile *file)
	Load opened struct gvfile to memory. More...
void	dig_file_free (struct gvfile *file)
	Free struct gvfile. More...
int	dig_write_frmt_ascii (FILE *, struct Format_info *, int)
int	dig_read_frmt_ascii (FILE *, struct Format_info *)
	Read external vector format file. More...
int	dig__write_head (struct Map_info *)
int	dig__read_head (struct Map_info *)
double	dig_x_intersect (double, double, double, double, double)
int	dig_test_for_intersection (double, double, double, double, double, double, double, double)
int	dig_find_intersection (double, double, double, double, double, double, double, double, double *, double *)
double	dig_distance2_point_to_line (double, double, double, double, double, double, double, double, double, int, double *, double *, double *, double *, int *)
int	dig_set_distance_to_line_tolerance (double)
int	dig_init_boxlist (struct boxlist *, int)
int	dig_boxlist_add (struct boxlist *, int, const struct bound_box *)
int	dig_init_plus (struct Plus_head *)
	Initialize Plus_head structure. More...
void	dig_free_plus_nodes (struct Plus_head *)
	Free Plus->Node structure. More...
void	dig_free_plus_lines (struct Plus_head *)
	Free Plus->Line structure. More...
void	dig_free_plus_areas (struct Plus_head *)
	Free Plus->Area structure. More...
void	dig_free_plus_isles (struct Plus_head *)
	Free Plus->Isle structure. More...
void	dig_free_plus (struct Plus_head *)
	Free Plus structure. More...
int	dig_load_plus (struct Plus_head *, struct gvfile *, int)
	Reads topo file to topo structure. More...
int	dig_write_plus_file (struct gvfile *, struct Plus_head *)
	Writes topo structure to topo file. More...
int	dig_write_nodes (struct gvfile *, struct Plus_head *)
	Writes topo structure (nodes) to topo file. More...
int	dig_write_lines (struct gvfile *, struct Plus_head *)
	Writes topo structure (lines) to topo file. More...
int	dig_write_areas (struct gvfile *, struct Plus_head *)
	Writes topo structure (areas) to topo file. More...
int	dig_write_isles (struct gvfile *, struct Plus_head *)
	Writes topo structure (isles) to topo file. More...
int	dig_add_area (struct Plus_head *, int, plus_t *, struct bound_box *)
	Allocate space for new area and create boundary info from array. More...
int	dig_area_add_isle (struct Plus_head *, int, int)
	Add isle to area if does not exist yet. More...
int	dig_area_del_isle (struct Plus_head *, int, int)
	Delete isle from area. More...
int	dig_del_area (struct Plus_head *, int)
	Delete area from Plus_head structure. More...
int	dig_add_isle (struct Plus_head *, int, plus_t *, struct bound_box *)
	Allocate space for new island and create boundary info from array. More...
int	dig_del_isle (struct Plus_head *, int)
	Delete island from Plus_head structure. More...
int	dig_build_area_with_line (struct Plus_head *, plus_t, int, plus_t **)
	Build topo for area from lines. More...
int	dig_angle_next_line (struct Plus_head *, plus_t, int, int, float *)
	Find line number of next angle to follow a line. More...
int	dig_node_angle_check (struct Plus_head *, int, int)
	Check if angles of adjacent lines differ. More...
int	dig_area_get_box (struct Plus_head *, plus_t, struct bound_box *)
int	dig_isle_get_box (struct Plus_head *, plus_t, struct bound_box *)
int	dig_add_line (struct Plus_head *, int, const struct line_pnts *, const struct bound_box *, off_t)
	Add new line to Plus_head structure. More...
int	dig_restore_line (struct Plus_head *, int, int, const struct line_pnts *, const struct bound_box *, off_t)
	Restore line in Plus_head structure. More...
int	dig_del_line (struct Plus_head *, int, double, double, double)
	Delete line from Plus_head structure. More...
plus_t	dig_line_get_area (struct Plus_head *, plus_t, int)
	Get area number on line side. More...
int	dig_line_set_area (struct Plus_head *, plus_t, int, plus_t)
	Set area number on line side. More...
int	dig_add_node (struct Plus_head *, double, double, double)
	Add new node to plus structure. More...
int	dig_which_node (struct Plus_head *, double, double, double)
	Return actual index into node arrays of the first set of matching coordinates. More...
int	dig_node_add_line (struct Plus_head *, int, int, const struct line_pnts *, int)
	Add line info to node. More...
float	dig_node_line_angle (struct Plus_head *, int, int)
	Return line angle. More...
int	dig_Rd_P_node (struct Plus_head *, int i, struct gvfile *)
int	dig_Wr_P_node (struct Plus_head *, int i, struct gvfile *)
int	dig_Rd_P_line (struct Plus_head *, int i, struct gvfile *)
int	dig_Wr_P_line (struct Plus_head *, int i, struct gvfile *)
int	dig_Rd_P_area (struct Plus_head *, int i, struct gvfile *)
int	dig_Wr_P_area (struct Plus_head *, int i, struct gvfile *)
int	dig_Rd_P_isle (struct Plus_head *, int i, struct gvfile *)
int	dig_Wr_P_isle (struct Plus_head *, int i, struct gvfile *)
int	dig_Rd_Plus_head (struct gvfile *, struct Plus_head *)
	Read Plus_head from file. More...
int	dig_Wr_Plus_head (struct gvfile *, struct Plus_head *)
	Write Plus_head to file. More...
int	dig_find_area_poly (struct line_pnts *, double *)
double	dig_find_poly_orientation (struct line_pnts *)
int	dig_get_poly_points (int, struct line_pnts **, int *, struct line_pnts *)
void	dig_init_portable (struct Port_info *, int)
	Set Port_info structure to byte order of file. More...
int	dig__byte_order_out (void)
	Get byte order. More...
int	dig_set_cur_port (struct Port_info *)
	Set current Port_info structure. More...
int	dig__fread_port_D (double *, size_t, struct gvfile *)
	Read doubles from the Portable Vector Format. More...
int	dig__fread_port_F (float *, size_t, struct gvfile *)
	Read floats from the Portable Vector Format. More...
int	dig__fread_port_O (off_t *, size_t, struct gvfile *, size_t)
	Read off_ts from the Portable Vector Format. More...
int	dig__fread_port_L (long *, size_t, struct gvfile *)
	Read longs from the Portable Vector Format. More...
int	dig__fread_port_S (short *, size_t, struct gvfile *)
	Read shorts from the Portable Vector Format. More...
int	dig__fread_port_I (int *, size_t, struct gvfile *)
	Read integers from the Portable Vector Format. More...
int	dig__fread_port_P (plus_t *, size_t, struct gvfile *)
	Read plus_t from the Portable Vector Format. More...
int	dig__fread_port_C (char *, size_t, struct gvfile *)
	Read chars from the Portable Vector Format. More...
int	dig__fwrite_port_D (const double *, size_t, struct gvfile *)
	Write doubles to the Portable Vector Format. More...
int	dig__fwrite_port_F (const float *, size_t, struct gvfile *)
	Write floats to the Portable Vector Format. More...
int	dig__fwrite_port_O (const off_t *, size_t, struct gvfile *, size_t)
	Write off_ts to the Portable Vector Format. More...
int	dig__fwrite_port_L (const long *, size_t, struct gvfile *)
	Write longs to the Portable Vector Format. More...
int	dig__fwrite_port_S (const short *, size_t, struct gvfile *)
	Write shorts to the Portable Vector Format. More...
int	dig__fwrite_port_I (const int *, size_t, struct gvfile *)
	Write integers to the Portable Vector Format. More...
int	dig__fwrite_port_P (const plus_t *, size_t, struct gvfile *)
	Write plus_t to the Portable Vector Format. More...
int	dig__fwrite_port_C (const char *, size_t, struct gvfile *)
	Write chars to the Portable Vector Format. More...
int	dig_prune (struct line_pnts *, double)
int	dig_spidx_init (struct Plus_head *)
	Initit spatial index (nodes, lines, areas, isles) More...
void	dig_spidx_free_nodes (struct Plus_head *)
	Free spatial index for nodes. More...
void	dig_spidx_free_lines (struct Plus_head *)
	Free spatial index for lines. More...
void	dig_spidx_free_areas (struct Plus_head *)
	Reset spatial index for areas. More...
void	dig_spidx_free_isles (struct Plus_head *)
	Reset spatial index for isles. More...
void	dig_spidx_free (struct Plus_head *)
	Free spatial index (nodes, lines, areas, isles) More...
int	dig_spidx_add_node (struct Plus_head *, int, double, double, double)
	Add new node to spatial index. More...
int	dig_spidx_add_line (struct Plus_head *, int, const struct bound_box *)
	Add new line to spatial index. More...
int	dig_spidx_add_area (struct Plus_head *, int, const struct bound_box *)
	Add new area to spatial index. More...
int	dig_spidx_add_isle (struct Plus_head *, int, const struct bound_box *)
	Add new island to spatial index. More...
int	dig_spidx_del_node (struct Plus_head *, int)
	Delete node from spatial index. More...
int	dig_spidx_del_line (struct Plus_head *, int, double, double, double)
	Delete line from spatial index. More...
int	dig_spidx_del_area (struct Plus_head *, int)
	Delete area from spatial index. More...
int	dig_spidx_del_isle (struct Plus_head *, int)
	Delete isle from spatial index. More...
int	dig_select_nodes (struct Plus_head *, const struct bound_box *, struct ilist *)
	Select nodes by bbox. More...
int	dig_select_lines (struct Plus_head *, const struct bound_box *, struct boxlist *)
	Select lines with boxes by box. More...
int	dig_select_areas (struct Plus_head *, const struct bound_box *, struct boxlist *)
	Select areas with boxes by box. More...
int	dig_select_isles (struct Plus_head *, const struct bound_box *, struct boxlist *)
	Select isles with boxes by box. More...
int	dig_find_node (struct Plus_head *, double, double, double)
	Find one node by coordinates. More...
int	dig_find_line_box (struct Plus_head *, int, struct bound_box *)
	Find box for line. More...
int	dig_find_area_box (struct Plus_head *, int, struct bound_box *)
	Find bounding box for given area. More...
int	dig_find_isle_box (struct Plus_head *, int, struct bound_box *)
	Find box for isle. More...
int	dig_Rd_spidx_head (struct gvfile *, struct Plus_head *)
	Read spatial index header from sidx file. More...
int	dig_Wr_spidx_head (struct gvfile *, struct Plus_head *)
	Write spatial index header to file. More...
int	dig_Wr_spidx (struct gvfile *, struct Plus_head *)
	Write spatial index to file. More...
int	dig_Rd_spidx (struct gvfile *, struct Plus_head *)
	Read spatial index from sidx file Only needed when old vector is opened in update mode. More...
int	dig_dump_spidx (FILE *, const struct Plus_head *)
	Dump spatial index. More...
int	rtree_search (struct RTree *, struct RTree_Rect *, SearchHitCallback, void *, struct Plus_head *)
	Search spatial index file Can't use regular RTreeSearch() here because sidx must be read with dig__fread_port_*() functions. More...
int	dig_node_alloc_line (struct P_node *, int)
	Allocate space in P_node struct. More...
int	dig_alloc_nodes (struct Plus_head *, int)
	Reallocate array of pointers to nodes. More...
int	dig_alloc_lines (struct Plus_head *, int)
	Reallocate array of pointers to lines. More...
int	dig_alloc_areas (struct Plus_head *, int)
	Reallocate array of pointers to areas. More...
int	dig_alloc_isles (struct Plus_head *, int)
	Reallocate array of pointers to isles. More...
struct P_node *	dig_alloc_node (void)
	Allocate new node structure. More...
struct P_line *	dig_alloc_line (void)
	Allocate new line structure. More...
void *	dig_alloc_topo (char)
	Allocate new topo struct. More...
struct P_area *	dig_alloc_area (void)
	Allocate new area structure. More...
struct P_isle *	dig_alloc_isle (void)
	Allocate new isle structure. More...
void	dig_free_node (struct P_node *)
	Free node structure. More...
void	dig_free_line (struct P_line *)
	Free line structure. More...
void	dig_free_area (struct P_area *)
	Free area structure. More...
void	dig_free_isle (struct P_isle *)
	Free isle structure. More...
int	dig_alloc_points (struct line_pnts *, int)
	allocate room for 'num' X and Y arrays in struct line_pnts More...
int	dig_alloc_cats (struct line_cats *, int)
	Allocate room for 'num' fields and category arrays in struct line_cats. More...
int	dig_area_alloc_line (struct P_area *, int)
	allocate space in P_area for add new lines More...
int	dig_area_alloc_isle (struct P_area *, int)
	Allocate space in P_area for add new isles. More...
int	dig_isle_alloc_line (struct P_isle *, int)
	Allocate space in P_isle for add new lines. More...
int	dig_out_of_memory (void)
	For now just print message and return error code. More...
int	dig_type_to_store (int)
	Convert type to store type. More...
int	dig_type_from_store (int)
	Convert type from store type. More...
void	dig_line_reset_updated (struct Plus_head *)
	Reset number of updated lines. More...
void	dig_line_add_updated (struct Plus_head *, int, off_t)
	Add new line to updated. More...
void	dig_node_reset_updated (struct Plus_head *)
	Reset number of updated nodes. More...
void	dig_node_add_updated (struct Plus_head *, int)
	Add node to updated. More...
char *	color_name (int)
char *	dig_float_point (char *, int, double)
double	dig_unit_conversion (void)
double *	dig__double_convert (double *, double *, int, struct dig_head *)
float *	dig__float_convert (float *, float *, int, struct dig_head *)
short *	dig__short_convert (short *in, short *out, int, struct dig_head *)
long *	dig__long_convert (long *, long *, int, struct dig_head *)
long *	dig__int_convert (int *, long *, int, struct dig_head *)
long *	dig__plus_t_convert (plus_t *, long *, int, struct dig_head *)
int *	dig__long_convert_to_int (long *, int *, int, struct dig_head *)
plus_t *	dig__long_convert_to_plus_t (long *, plus_t *, int, struct dig_head *)
char *	dig__convert_buffer (int)
plus_t **	dig_get_cont_lines (struct Map_info *, plus_t, double, int)
plus_t	dig_get_next_cont_line (struct Map_info *, plus_t, double, int)
struct dig_head *	dig_get_head (void)
struct dig_head *	dig__get_head (void)
int	dig_start_clock (long *)
int	dig_stop_clock (long *)
char *	dig_stop_clock_str (long *)
int	dig_write_file_checks (struct gvfile *, struct Plus_head *)
int	dig_do_file_checks (struct Map_info *, char *, char *)
int	dig_map_to_head (struct Map_info *, struct Plus_head *)
int	dig_head_to_map (struct Plus_head *, struct Map_info *)
int	dig_spindex_init (struct Plus_head *)
int	dig_point_to_area (struct Map_info *, double, double)
int	dig_point_to_next_area (struct Map_info *, double, double, double *)
int	dig_point_to_line (struct Map_info *, double, double, char)
int	dig_check_dist (struct Map_info *, int, double, double, double *)
int	dig__check_dist (struct Map_info *, struct line_pnts *, double, double, double *)
int	dig_point_by_line (struct Map_info *, double, double, double, double, char)
int	dig_write_head_ascii (FILE *, struct dig_head *)
int	dig_read_head_ascii (FILE *, struct dig_head *)
int	dig_struct_copy (void *, void *, int)
int	dig_rmcr (char *)

Function Documentation

color_name()

char* color_name

(

int

)

dig__alloc_space()

void* dig__alloc_space	(	int	n_wanted,
		int *	n_elements,
		int	chunk_size,
		void *	ptr,
		int	element_size
	)

Definition at line 49 of file allocation.c.

References dig__frealloc(), and G_calloc.

Referenced by dig_alloc_cats(), dig_alloc_points(), and dig_alloc_space().

dig__byte_order_out()

int dig__byte_order_out

(

void

)

Get byte order.

Returns

ENDIAN_LITTLE

ENDIAN_BIG

Definition at line 1008 of file portable.c.

References dbl_order, ENDIAN_BIG, and ENDIAN_LITTLE.

Referenced by V1_open_new_nat(), Vect_save_fidx(), Vect_save_sidx(), and Vect_save_topo().

dig__check_dist()

int dig__check_dist	(	struct Map_info *	,
		struct line_pnts *	,
		double	,
		double	,
		double *
	)

dig__convert_buffer()

char* dig__convert_buffer

(

int

)

dig__double_convert()

double* dig__double_convert	(	double *	,
		double *	,
		int	,
		struct dig_head *
	)

dig__falloc()

void* dig__falloc	(	int	nelem,
		int	elsize
	)

Definition at line 118 of file allocation.c.

References G_calloc.

Referenced by dig_falloc().

dig__float_convert()

float* dig__float_convert	(	float *	,
		float *	,
		int	,
		struct dig_head *
	)

dig__fread_port_C()

int dig__fread_port_C	(	char *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read chars from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to gvfile structure

Returns

0 error

1 OK

Definition at line 511 of file portable.c.

References dig_fread(), and PORT_CHAR.

Referenced by dig__read_head(), dig_Rd_P_line(), dig_Rd_Plus_head(), dig_Rd_spidx_head(), dig_read_cidx_head(), V1_delete_line_nat(), and Vect_open_fidx().

dig__fread_port_D()

int dig__fread_port_D	(	double *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read doubles from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 79 of file portable.c.

References Cur_Head, Port_info::dbl_quick, dig_fread(), and PORT_DOUBLE.

Referenced by dig_Rd_P_node(), and dig_Rd_Plus_head().

dig__fread_port_F()

int dig__fread_port_F	(	float *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read floats from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 123 of file portable.c.

References Cur_Head, dig_fread(), Port_info::flt_quick, and PORT_FLOAT.

Referenced by dig_Rd_P_node().

dig__fread_port_I()

int dig__fread_port_I	(	int *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read integers from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 345 of file portable.c.

References Cur_Head, dig_fread(), Port_info::int_quick, nat_int, and PORT_INT.

Referenced by dig__fread_port_P(), dig_Rd_P_line(), dig_Rd_spidx_head(), dig_read_cidx(), dig_read_cidx_head(), and Vect_open_fidx().

dig__fread_port_L()

int dig__fread_port_L	(	long *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read longs from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 262 of file portable.c.

References Cur_Head, dig_fread(), Port_info::lng_quick, nat_lng, and PORT_LONG.

Referenced by dig__read_head(), dig_Rd_Plus_head(), dig_Rd_spidx_head(), dig_read_cidx_head(), and Vect_open_fidx().

dig__fread_port_O()

int dig__fread_port_O	(	off_t *	buf,
		size_t	cnt,
		struct gvfile *	fp,
		size_t	port_off_t_size
	)

Read off_ts from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile
	port_off_t_size	offset

Returns

0 error

1 OK

Definition at line 167 of file portable.c.

References Cur_Head, dig_fread(), nat_off_t, and Port_info::off_t_quick.

Referenced by dig__read_head(), dig_Rd_P_line(), dig_Rd_Plus_head(), dig_Rd_spidx_head(), and dig_read_cidx_head().

dig__fread_port_P()

int dig__fread_port_P	(	plus_t *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read plus_t from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

plus_t is defined as int so we only retype pointer and use int function.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 537 of file portable.c.

References dig__fread_port_I().

Referenced by dig_Rd_P_area(), dig_Rd_P_isle(), dig_Rd_P_line(), dig_Rd_P_node(), and dig_Rd_Plus_head().

dig__fread_port_S()

int dig__fread_port_S	(	short *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Read shorts from the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

[out]	buf	data buffer
	cnt	number of members
	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 428 of file portable.c.

References Cur_Head, dig_fread(), nat_shrt, PORT_SHORT, and Port_info::shrt_quick.

dig__frealloc()

void* dig__frealloc	(	void *	oldptr,
		int	nelem,
		int	elsize,
		int	oldnelem
	)

Definition at line 133 of file allocation.c.

References G_calloc.

Referenced by dig__alloc_space(), and dig_frealloc().

dig__fwrite_port_C()

int dig__fwrite_port_C	(	const char *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write chars to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 886 of file portable.c.

References dig_fwrite(), and PORT_CHAR.

Referenced by dig__write_head(), dig_Wr_P_line(), dig_Wr_Plus_head(), dig_Wr_spidx_head(), dig_write_cidx_head(), V1_delete_line_nat(), and Vect_save_fidx().

dig__fwrite_port_D()

int dig__fwrite_port_D	(	const double *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write doubles to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 559 of file portable.c.

References Cur_Head, Port_info::dbl_quick, dig_fwrite(), and PORT_DOUBLE.

Referenced by dig_Wr_P_node(), and dig_Wr_Plus_head().

dig__fwrite_port_F()

int dig__fwrite_port_F	(	const float *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write floats to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 597 of file portable.c.

References Cur_Head, dig_fwrite(), Port_info::flt_quick, and PORT_FLOAT.

Referenced by dig_Wr_P_node().

dig__fwrite_port_I()

int dig__fwrite_port_I	(	const int *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write integers to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 758 of file portable.c.

References Cur_Head, dig_fwrite(), Port_info::int_quick, nat_int, and PORT_INT.

Referenced by dig__fwrite_port_P(), dig_Wr_P_line(), dig_Wr_spidx_head(), dig_write_cidx(), dig_write_cidx_head(), and Vect_save_fidx().

dig__fwrite_port_L()

int dig__fwrite_port_L	(	const long *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write longs to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 703 of file portable.c.

References Cur_Head, dig_fwrite(), Port_info::lng_quick, nat_lng, and PORT_LONG.

Referenced by dig__write_head(), dig_Wr_Plus_head(), dig_Wr_spidx_head(), dig_write_cidx_head(), and Vect_save_fidx().

dig__fwrite_port_O()

int dig__fwrite_port_O	(	const off_t *	buf,
		size_t	cnt,
		struct gvfile *	fp,
		size_t	port_off_t_size
	)

Write off_ts to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile
	port_off_t_size

Returns

0 error

1 OK

Definition at line 636 of file portable.c.

References Cur_Head, dig_fwrite(), nat_off_t, and Port_info::off_t_quick.

Referenced by dig__write_head(), dig_Wr_P_line(), dig_Wr_Plus_head(), dig_Wr_spidx_head(), and dig_write_cidx_head().

dig__fwrite_port_P()

int dig__fwrite_port_P	(	const plus_t *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write plus_t to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 868 of file portable.c.

References dig__fwrite_port_I().

Referenced by dig_Wr_P_area(), dig_Wr_P_isle(), dig_Wr_P_line(), dig_Wr_P_node(), and dig_Wr_Plus_head().

dig__fwrite_port_S()

int dig__fwrite_port_S	(	const short *	buf,
		size_t	cnt,
		struct gvfile *	fp
	)

Write shorts to the Portable Vector Format.

These routines must handle any type size conversions between the portable format and the native machine.

Parameters

	buf	data buffer
	cnt	number of members
[in,out]	fp	pointer to struct gvfile

Returns

0 error

1 OK

Definition at line 813 of file portable.c.

References Cur_Head, dig_fwrite(), nat_shrt, PORT_SHORT, and Port_info::shrt_quick.

dig__get_head()

struct dig_head* dig__get_head

(

void

)

dig__int_convert()

long* dig__int_convert	(	int *	,
		long *	,
		int	,
		struct dig_head *
	)

dig__long_convert()

long* dig__long_convert	(	long *	,
		long *	,
		int	,
		struct dig_head *
	)

dig__long_convert_to_int()

int* dig__long_convert_to_int	(	long *	,
		int *	,
		int	,
		struct dig_head *
	)

dig__long_convert_to_plus_t()

plus_t* dig__long_convert_to_plus_t	(	long *	,
		plus_t *	,
		int	,
		struct dig_head *
	)

dig__plus_t_convert()

long* dig__plus_t_convert	(	plus_t *	,
		long *	,
		int	,
		struct dig_head *
	)

dig__read_head()

int dig__read_head

(

struct Map_info *

Map

)

Definition at line 87 of file head.c.

References Version_info::back_major, Version_info::back_minor, Port_info::byte_order, dig_head::coor_version, dig__fread_port_C(), dig__fread_port_L(), dig__fread_port_O(), Map_info::dig_fp, dig_fseek(), dig_init_portable(), dig_set_cur_port(), G_debug(), G_fatal_error(), G_warning(), GV_COOR_HEAD_SIZE, GV_COOR_VER_MAJOR, GV_COOR_VER_MINOR, Map_info::head, dig_head::head_size, Version_info::major, Version_info::minor, Map_info::name, dig_head::port, PORT_LONG_MAX, dig_head::size, and dig_head::with_z.

Referenced by V1_open_old_nat().

dig__short_convert()

short* dig__short_convert	(	short *	in,
		short *	out,
		int	,
		struct dig_head *
	)

dig__write_head()

int dig__write_head

(

struct Map_info *

Map

)

Definition at line 23 of file head.c.

References Version_info::back_major, Version_info::back_minor, Port_info::byte_order, dig_head::coor_version, dig__fwrite_port_C(), dig__fwrite_port_L(), dig__fwrite_port_O(), Map_info::dig_fp, dig_fseek(), dig_ftell(), dig_set_cur_port(), G_debug(), GV_COOR_HEAD_SIZE, Map_info::head, dig_head::head_size, Version_info::major, Version_info::minor, dig_head::port, PORT_LONG_MAX, dig_head::size, and dig_head::with_z.

Referenced by V1_close_nat(), and V1_open_new_nat().

dig_add_area()

int dig_add_area	(	struct Plus_head *	plus,
		int	n_lines,
		plus_t *	lines,
		struct bound_box *	box
	)

Allocate space for new area and create boundary info from array.

Then for each line in area, update line (right,left) info.

Neither islands nor centroids are filled.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	n_lines	number of lines
[in]	lines	array of lines, negative for reverse direction
[in]	box	bounding box

Returns

number of new area

-1 on error

Definition at line 187 of file plus_area.c.

Referenced by Vect_build_line_area().

dig_add_isle()

int dig_add_isle	(	struct Plus_head *	plus,
		int	n_lines,
		plus_t *	lines,
		struct bound_box *	box
	)

Allocate space for new island and create boundary info from array.

The order of input lines is expected to be counter clockwise. Then for each line in isle, update line (right,left) info.

Area number the island is within is not filled.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	n_lines	number of lines
[in]	lines	array of lines, negative for reverse direction
[in]	box	bounding box

Returns

number of new isle

-1 on error

Definition at line 703 of file plus_area.c.

Referenced by Vect_build_line_area().

dig_add_line()

int dig_add_line	(	struct Plus_head *	plus,
		int	type,
		const struct line_pnts *	Points,
		const struct bound_box *	box,
		off_t	offset
	)

Add new line to Plus_head structure.

Parameters

[in,out]	plus	pointer to Plus_head structure
	type	feature type
	Points	line geometry
	box	bounding box
	offset	line offset

Returns

-1 on error

line id

Definition at line 133 of file plus_line.c.

dig_add_node()

int dig_add_node	(	struct Plus_head *	plus,
		double	x,
		double	y,
		double	z
	)

Add new node to plus structure.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	x,y,z	coordinates

Returns

-1 on error

number of node

Definition at line 101 of file plus_node.c.

References Plus_head::alloc_nodes, dig_alloc_node(), dig_alloc_nodes(), dig_spidx_add_node(), G_debug(), Plus_head::n_nodes, Plus_head::Node, P_node::x, x, P_node::y, and P_node::z.

dig_alloc_area()

struct P_area* dig_alloc_area

(

void

)

Allocate new area structure.

Returns

pointer to allocated P_area struct

NULL on error

Definition at line 266 of file struct_alloc.c.

References G_malloc, G_zero(), and NULL.

Referenced by dig_Rd_P_area().

dig_alloc_areas()

int dig_alloc_areas	(	struct Plus_head *	Plus,
		int	add
	)

Reallocate array of pointers to areas.

Parameters

Plus	pointer to Plus_head structure
add	space for 'add' number of areas is added

Returns

0 on success

-1 on error

Definition at line 218 of file struct_alloc.c.

Referenced by dig_load_plus().

dig_alloc_cats()

int dig_alloc_cats	(	struct line_cats *	cats,
		int	num
	)

Allocate room for 'num' fields and category arrays in struct line_cats.

Parameters

cats	pointer to line_cats struct
num	number of cats

Returns

0 on success

returns -1 on out of memory

Definition at line 380 of file struct_alloc.c.

References line_cats::alloc_cats, line_cats::cat, dig__alloc_space(), dig_out_of_memory(), and line_cats::field.

Referenced by Vect_cat_set().

dig_alloc_isle()

struct P_isle* dig_alloc_isle

(

void

)

Allocate new isle structure.

Returns

pointer to allocated P_isle struct

NULL on error

Definition at line 301 of file struct_alloc.c.

References G_malloc, G_zero(), and NULL.

Referenced by dig_Rd_P_isle().

dig_alloc_isles()

int dig_alloc_isles	(	struct Plus_head *	Plus,
		int	add
	)

Reallocate array of pointers to isles.

Parameters

Plus	pointer to Plus_head structure
add	space for 'add' number of isles is added.

Returns

0 on success

-1 on error

Definition at line 243 of file struct_alloc.c.

Referenced by dig_load_plus().

dig_alloc_line()

struct P_line* dig_alloc_line

(

void

)

Allocate new line structure.

Returns

pointer to allocated P_node struct

NULL on error

Definition at line 127 of file struct_alloc.c.

References G_malloc, G_zero(), and NULL.

Referenced by dig_Rd_P_line().

dig_alloc_lines()

int dig_alloc_lines	(	struct Plus_head *	Plus,
		int	add
	)

Reallocate array of pointers to lines.

Parameters

Plus	pointer to Plus_head structure
add	space for 'add' number of lines is added.

Returns

0 on success

-1 on error

Definition at line 193 of file struct_alloc.c.

Referenced by dig_load_plus(), and Vect__load_map_lines_pg().

dig_alloc_node()

struct P_node* dig_alloc_node

(

void

)

Allocate new node structure.

Returns

pointer to allocated P_node struct

NULL on error

Definition at line 30 of file struct_alloc.c.

References G_malloc, G_zero(), and NULL.

Referenced by dig_add_node(), and dig_Rd_P_node().

dig_alloc_nodes()

int dig_alloc_nodes	(	struct Plus_head *	Plus,
		int	add
	)

Reallocate array of pointers to nodes.

Parameters

Plus	pointer to Plus_head structure
add	number of nodes to be added

Returns

0 on success

-1 on error

Definition at line 105 of file struct_alloc.c.

Referenced by dig_add_node(), dig_load_plus(), and Vect__load_map_nodes_pg().

dig_alloc_points()

int dig_alloc_points	(	struct line_pnts *	points,
		int	num
	)

allocate room for 'num' X and Y arrays in struct line_pnts

Parameters

points	pointer to line_pnts struct
num	number of points

Returns

0 on success

returns -1 on out of memory

Definition at line 336 of file struct_alloc.c.

References line_pnts::alloc_points, dig__alloc_space(), dig_out_of_memory(), line_pnts::x, line_pnts::y, and line_pnts::z.

dig_alloc_space()

void* dig_alloc_space	(	int	n_wanted,
		int *	n_elements,
		int	chunk_size,
		void *	ptr,
		int	element_size
	)

Definition at line 33 of file allocation.c.

References dig__alloc_space(), and NULL.

dig_alloc_topo()

void* dig_alloc_topo

(

char

type

)

Allocate new topo struct.

Parameters

type	to of struct to allocate

Definition at line 145 of file struct_alloc.c.

Referenced by dig_Rd_P_line().

dig_angle_next_line()

int dig_angle_next_line	(	struct Plus_head *	plus,
		plus_t	current_line,
		int	side,
		int	type,
		float *	angle
	)

Find line number of next angle to follow a line.

Assume that lines are sorted in increasing angle order and angles of points and degenerated lines are set to -9 (ignored).

Parameters

[in]	plus	pointer to Plus_head structure
[in]	current_line	current line id, negative if request for end node
[in]	side	side GV_RIGHT or GV_LEFT
[in]	type	line type (GV_LINE, GV_BOUNDARY or both)
[out]	angle

Returns

line number of next angle to follow a line (negative if connected by end node) (number of current line may be returned if dangle - this is used in build)

0 on error or not found

Definition at line 474 of file plus_area.c.

dig_area_add_isle()

int dig_area_add_isle	(	struct Plus_head *	plus,
		int	area,
		int	isle
	)

Add isle to area if does not exist yet.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	area	area id
[in]	isle	isle id

Returns

0

Definition at line 265 of file plus_area.c.

References G_debug().

Referenced by Vect_attach_isle().

dig_area_alloc_isle()

int dig_area_alloc_isle	(	struct P_area *	area,
		int	add
	)

Allocate space in P_area for add new isles.

Parameters

area	pointer to P_area struct
add	number of isle to be added

Returns

0 on success

-1 on error

Definition at line 440 of file struct_alloc.c.

Referenced by dig_Rd_P_area().

dig_area_alloc_line()

int dig_area_alloc_line	(	struct P_area *	area,
		int	add
	)

allocate space in P_area for add new lines

Parameters

area	pointer to P_area struct
add	number of lines to be added

Returns

0 on success

-1 on error

Definition at line 414 of file struct_alloc.c.

Referenced by dig_Rd_P_area().

dig_area_del_isle()

int dig_area_del_isle	(	struct Plus_head *	plus,
		int	area,
		int	isle
	)

Delete isle from area.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	area	area id
[in]	isle	isle id

Returns

0

Definition at line 314 of file plus_area.c.

References _, Plus_head::Area, G_debug(), G_fatal_error(), P_area::isles, P_area::n_isles, and NULL.

Referenced by Vect_attach_isles().

dig_area_get_box()

int dig_area_get_box	(	struct Plus_head *	,
		plus_t	,
		struct bound_box *
	)

dig_box_copy()

int dig_box_copy	(	struct bound_box *	A,
		struct bound_box *	B
	)

Definition at line 64 of file vector/diglib/box.c.

dig_box_extend()

int dig_box_extend	(	struct bound_box *	A,
		struct bound_box *	B
	)

Definition at line 81 of file vector/diglib/box.c.

dig_boxlist_add()

int dig_boxlist_add	(	struct boxlist *	list,
		int	id,
		const struct bound_box *	box
	)

Definition at line 34 of file vector/diglib/list.c.

References G_realloc, and NULL.

dig_build_area_with_line()

int dig_build_area_with_line	(	struct Plus_head *	plus,
		plus_t	first_line,
		int	side,
		plus_t **	lines
	)

Build topo for area from lines.

Area is built in clockwise order. Take a given line and start off to the RIGHT/LEFT and try to complete an area.

Possible Scenarios:

• I. path runs into first line. : AREA!
• II. path runs into a dead end (no other area lines at node) : no area
• III. path runs into a previous line that is not 1st line or to 1st line but not to start node : no area

After we find an area then we call point_in_area() to see if the specified point is w/in the area

Old returns -1: error 0: no area (1: point in area) -2: island !!

Parameters

[in]	plus	pointer to Plus_head structure
[in]	first_line	line id of first line
[in]	side	side of line to build area on (GV_LEFT | GV_RIGHT)
[in]	lines	pointer to array of lines

Returns

-1 on error

0 no area

number of lines

Definition at line 50 of file plus_area.c.

Referenced by Vect_build_line_area().

dig_calc_begin_angle()

float dig_calc_begin_angle	(	const struct line_pnts *	points,
		double	thresh
	)

Definition at line 31 of file angle.c.

References dig_line_degenerate(), line_pnts::n_points, line_pnts::x, and line_pnts::y.

dig_calc_end_angle()

float dig_calc_end_angle	(	const struct line_pnts *	points,
		double	thresh
	)

Definition at line 83 of file angle.c.

References dig_line_degenerate(), line_pnts::n_points, line_pnts::x, and line_pnts::y.

dig_check_dist()

int dig_check_dist	(	struct Map_info *	,
		int	,
		double	,
		double	,
		double *
	)

dig_cidx_add_cat()

int dig_cidx_add_cat	(	struct Plus_head *	Plus,
		int	field,
		int	cat,
		int	line,
		int	type
	)

Definition at line 72 of file diglib/cindex.c.

dig_cidx_add_cat_sorted()

int dig_cidx_add_cat_sorted	(	struct Plus_head *	Plus,
		int	field,
		int	cat,
		int	line,
		int	type
	)

Definition at line 177 of file diglib/cindex.c.

dig_cidx_del_cat()

int dig_cidx_del_cat	(	struct Plus_head *	Plus,
		int	field,
		int	cat,
		int	line,
		int	type
	)

Definition at line 267 of file diglib/cindex.c.

dig_cidx_free()

void dig_cidx_free

(

struct Plus_head *

Plus

)

Definition at line 44 of file diglib/cindex.c.

References Cat_index::a_cats, Plus_head::a_cidx, Cat_index::cat, Plus_head::cidx, Plus_head::cidx_up_to_date, Cat_index::field, G_debug(), G_free(), Cat_index::n_cats, Plus_head::n_cidx, Cat_index::n_types, and NULL.

Referenced by dig_free_plus(), dig_read_cidx(), and Vect_build_partial().

dig_cidx_init()

int dig_cidx_init

(

struct Plus_head *

Plus

)

Initialize Plus_head structure (cidx)

Parameters

Plus	pointer to Plus_head structure

Returns

1 OK

0 on error

Definition at line 29 of file diglib/cindex.c.

References Plus_head::a_cidx, Plus_head::cidx, Plus_head::cidx_up_to_date, G_debug(), G_malloc, and Plus_head::n_cidx.

Referenced by dig_init_plus(), dig_read_cidx(), and Vect_build_partial().

dig_cidx_sort()

void dig_cidx_sort

(

struct Plus_head *

Plus

)

Definition at line 328 of file diglib/cindex.c.

References G_debug(), and Plus_head::n_cidx.

dig_del_area()

int dig_del_area	(	struct Plus_head *	plus,
		int	area
	)

Delete area from Plus_head structure.

This function deletes area from the topo structure and resets references to this area in boundaries, isles (within), and the centroid (if any) to 0. Possible new area is not created by this function, so that old boundaries participating in this area are left without area information even if form new area. Not enabled now: If area is inside other area, area info for islands within deleted area is reset to that area outside. (currently area info of isles is set to 0)

Parameters

[in]	plus	pointer to Plus_head structure
[in]	area	area id

Returns

0 on error

1 on success

Definition at line 365 of file plus_area.c.

dig_del_isle()

int dig_del_isle	(	struct Plus_head *	plus,
		int	isle
	)

Delete island from Plus_head structure.

Reset references to it in lines and area outside.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	isle	isle id

Returns

1

Definition at line 781 of file plus_area.c.

dig_del_line()

int dig_del_line	(	struct Plus_head *	plus,
		int	line,
		double	x,
		double	y,
		double	z
	)

Delete line from Plus_head structure.

Doesn't update area/isle references (dig_del_area() or dig_del_isle()) must be run before the line is deleted if the line is part of such structure). Update is info about line in nodes. If this line is last in node then node is deleted.

Parameters

[in,out]	plus	pointer to Plus_head structure
[in]	line	line id
[in]	x,y,z	coordinates

Returns

-1 on error

0 OK

Definition at line 216 of file plus_line.c.

dig_distance2_point_to_line()

double dig_distance2_point_to_line	(	double	x,
		double	y,
		double	z,
		double	x1,
		double	y1,
		double	z1,
		double	x2,
		double	y2,
		double	z2,
		int	with_z,
		double *	px,
		double *	py,
		double *	pz,
		double *	pdist,
		int *	status
	)

Definition at line 47 of file vector/diglib/line_dist.c.

Referenced by Vect_line_distance(), and Vect_line_geodesic_distance().

dig_do_file_checks()

int dig_do_file_checks	(	struct Map_info *	,
		char *	,
		char *
	)

dig_dump_spidx()

int dig_dump_spidx	(	FILE *	fp,
		const struct Plus_head *	Plus
	)

Dump spatial index.

Parameters

[out]	fp	pointer to FILE
	Plus	pointer to Plus_head structure

Returns

0

Definition at line 1267 of file spindex_rw.c.

References RTree::fd, and Plus_head::Node_spidx.

Referenced by Vect_sidx_dump().

dig_falloc()

void* dig_falloc	(	int	nelem,
		int	elsize
	)

Definition at line 91 of file allocation.c.

References dig__falloc(), G_sleep(), and NULL.

dig_fflush()

int dig_fflush

(

struct gvfile *

file

)

Flush struct gvfile.

Parameters

file	pointer to struct gvfile structure

Returns

0

Definition at line 104 of file file.c.

References file.

Referenced by dig_write_plus_file(), and V1_delete_line_nat().

dig_file_free()

void dig_file_free

(

struct gvfile *

file

)

Free struct gvfile.

Parameters

file	pointer to struct gvfile structure

Definition at line 268 of file file.c.

References file, and G_free().

Referenced by V1_close_nat().

dig_file_init()

void dig_file_init

(

struct gvfile *

file

)

Initialize gvfile structure.

Parameters

[in,out]

file

pointer to gvfile structure

Definition at line 171 of file file.c.

References file, and G_zero().

Referenced by V1_open_new_nat(), V1_open_old_nat(), Vect_cidx_open(), Vect_open_fidx(), Vect_open_topo(), Vect_save_fidx(), Vect_save_sidx(), and Vect_save_topo().

dig_file_load()

int dig_file_load

(

struct gvfile *

file

)

Load opened struct gvfile to memory.

Warning: position in file is set to the beginning.

Parameters

file	pointer to struct gvfile structure

Returns

1 loaded

0 not loaded

-1 error

Definition at line 188 of file file.c.

dig_find_area_box()

int dig_find_area_box	(	struct Plus_head *	Plus,
		int	area,
		struct bound_box *	box
	)

Find bounding box for given area.

Parameters

	Plus	pointer to Plus_head structure
	area	area id
[out]	box	bounding box

Returns

> 0 bounding box for area found

0 not found

Definition at line 919 of file spindex.c.

References Plus_head::Area, Plus_head::Area_spidx, RTree_Rect::boundary, G_debug(), G_malloc, if(), Plus_head::Line, P_area::lines, P_topo_b::N1, Plus_head::Node, RTreeSearch(), Plus_head::Spidx_new, P_line::topo, P_node::x, P_node::y, and P_node::z.

Referenced by Vect_get_area_box().

dig_find_area_poly()

int dig_find_area_poly	(	struct line_pnts *	Points,
		double *	totalarea
	)

Definition at line 98 of file diglib/poly.c.

Referenced by Vect_build_line_area().

dig_find_intersection()

int dig_find_intersection	(	double	ax1,
		double	ay1,
		double	ax2,
		double	ay2,
		double	bx1,
		double	by1,
		double	bx2,
		double	by2,
		double *	x,
		double *	y
	)

Definition at line 181 of file linecros.c.

dig_find_isle_box()

int dig_find_isle_box	(	struct Plus_head *	Plus,
		int	isle,
		struct bound_box *	box
	)

Find box for isle.

Parameters

	Plus	pointer to Plus_head structure
	isle	isle id
[out]	box	bounding box

Returns

> 0 bounding box for isle found

0 not found

Definition at line 1015 of file spindex.c.

References RTree_Rect::boundary, G_debug(), G_malloc, if(), Plus_head::Isle, Plus_head::Isle_spidx, Plus_head::Line, P_isle::lines, P_topo_b::N1, Plus_head::Node, RTreeSearch(), Plus_head::Spidx_new, P_line::topo, P_node::x, P_node::y, and P_node::z.

Referenced by Vect_get_isle_box().

dig_find_line_box()

int dig_find_line_box	(	struct Plus_head *	Plus,
		int	line,
		struct bound_box *	box
	)

Find box for line.

Parameters

	Plus	pointer to Plus_head structure
	line	line id
[out]	box	bounding box

Returns

> 0 bounding box for line found

0 not found

Definition at line 803 of file spindex.c.

dig_find_node()

int dig_find_node	(	struct Plus_head *	Plus,
		double	x,
		double	y,
		double	z
	)

Find one node by coordinates.

Parameters

Plus	pointer to Plus_head structure
x,y,z	coordinates

Returns

number of node

0 not found

Definition at line 718 of file spindex.c.

References RTree_Rect::boundary, G_debug(), G_malloc, Plus_head::Node_spidx, RTreeSearch(), Plus_head::Spidx_new, and x.

dig_find_poly_orientation()

double dig_find_poly_orientation

(

struct line_pnts *

Points

)

Definition at line 137 of file diglib/poly.c.

dig_float_point()

char* dig_float_point	(	char *	,
		int	,
		double
	)

dig_fread()

size_t dig_fread	(	void *	ptr,
		size_t	size,
		size_t	nmemb,
		struct gvfile *	file
	)

Read struct gvfile.

Parameters

[out]	ptr	data buffer
	size	buffer size
	nmemb	number of members
	file	pointer to struct gvfile structure

Returns

number of read members

Definition at line 124 of file file.c.

References file.

Referenced by dig__fread_port_C(), dig__fread_port_D(), dig__fread_port_F(), dig__fread_port_I(), dig__fread_port_L(), dig__fread_port_O(), and dig__fread_port_S().

dig_frealloc()

void* dig_frealloc	(	void *	oldptr,
		int	nelem,
		int	elsize,
		int	oldnelem
	)

Definition at line 103 of file allocation.c.

References dig__frealloc(), G_sleep(), and NULL.

dig_free_area()

void dig_free_area

(

struct P_area *

Area

)

Free area structure.

Parameters

Area	pointer to P_area struct to be freed

Definition at line 284 of file struct_alloc.c.

References P_area::alloc_isles, P_area::alloc_lines, free(), G_free(), P_area::isles, and P_area::lines.

Referenced by dig_free_plus_areas(), and dig_Rd_P_area().

dig_free_isle()

void dig_free_isle

(

struct P_isle *

Isle

)

Free isle structure.

Parameters

Isle	pointer to P_isle struct to be freed

Definition at line 319 of file struct_alloc.c.

References P_isle::alloc_lines, G_free(), and P_isle::lines.

Referenced by dig_free_plus_isles(), and dig_Rd_P_isle().

dig_free_line()

void dig_free_line

(

struct P_line *

Line

)

Free line structure.

Parameters

pointer

to P_line struct to be freed

Definition at line 177 of file struct_alloc.c.

References G_free(), and P_line::topo.

Referenced by dig_free_plus_lines(), and dig_Rd_P_line().

dig_free_node()

void dig_free_node

(

struct P_node *

Node

)

Free node structure.

Parameters

Node	pointer to P_node struct to be freed

Definition at line 48 of file struct_alloc.c.

References P_node::alloc_lines, P_node::angles, G_free(), and P_node::lines.

Referenced by dig_free_plus_nodes(), and dig_Rd_P_node().

dig_free_plus()

void dig_free_plus

(

struct Plus_head *

Plus

)

Free Plus structure.

Structure is not inited and dig_init_plus() should follow.

Parameters

[in]

Plus

pointer to Plus_head structure

Definition at line 173 of file plus.c.

References dig_cidx_free(), dig_free_plus_areas(), dig_free_plus_isles(), dig_free_plus_lines(), dig_free_plus_nodes(), dig_spidx_free(), and G_debug().

Referenced by dig_load_plus().

dig_free_plus_areas()

void dig_free_plus_areas

(

struct Plus_head *

Plus

)

Free Plus->Area structure.

Parameters

[in]

Plus

pointer to Plus_head structure

Definition at line 114 of file plus.c.

References Plus_head::alloc_areas, Plus_head::Area, dig_free_area(), G_debug(), G_free(), Plus_head::n_areas, and NULL.

Referenced by dig_free_plus().

dig_free_plus_isles()

void dig_free_plus_isles

(

struct Plus_head *

Plus

)

Free Plus->Isle structure.

Parameters

[in]

Plus

pointer to Plus_head structure

Definition at line 142 of file plus.c.

References Plus_head::alloc_isles, dig_free_isle(), G_debug(), G_free(), Plus_head::Isle, Plus_head::n_isles, and NULL.

Referenced by dig_free_plus().

dig_free_plus_lines()

void dig_free_plus_lines

(

struct Plus_head *

Plus

)

Free Plus->Line structure.

Parameters

[in]

Plus

pointer to Plus_head structure

Definition at line 78 of file plus.c.

References Plus_head::alloc_lines, dig_free_line(), G_debug(), G_free(), Plus_head::Line, Plus_head::n_blines, Plus_head::n_clines, Plus_head::n_flines, Plus_head::n_klines, Plus_head::n_lines, Plus_head::n_llines, Plus_head::n_plines, and NULL.

Referenced by dig_free_plus().

dig_free_plus_nodes()

void dig_free_plus_nodes

(

struct Plus_head *

Plus

)

Free Plus->Node structure.

Parameters

[in]

Plus

pointer to Plus_head structure

Definition at line 50 of file plus.c.

References Plus_head::alloc_nodes, dig_free_node(), G_debug(), G_free(), Plus_head::n_nodes, Plus_head::Node, and NULL.

Referenced by dig_free_plus().

dig_fseek()

int dig_fseek	(	struct gvfile *	file,
		off_t	offset,
		int	whence
	)

Set struct gvfile position.

Start positions:

• SEEK_SET (start)
• SEEK_CUR (current position)
• SEEK_END (end)

Parameters

file	pointer to struct gvfile structure
offset	offset position
whence	start position

Returns

0 OK

-1 error

Definition at line 60 of file file.c.

References file, and G_fseek().

Referenced by dig__read_head(), dig__write_head(), dig_load_plus(), dig_Rd_Plus_head(), dig_Rd_spidx_head(), dig_read_cidx(), dig_read_cidx_head(), V1_delete_line_nat(), V1_rewind_nat(), and Vect_coor_info().

dig_ftell()

off_t dig_ftell

(

struct gvfile *

file

)

Get struct gvfile position.

Parameters

file	pointer to struct gvfile structure

Returns

current file position

Definition at line 36 of file file.c.

References file, and G_ftell().

Referenced by dig__write_head(), dig_Wr_Plus_head(), dig_Wr_spidx_head(), dig_write_areas(), dig_write_cidx(), dig_write_cidx_head(), dig_write_isles(), dig_write_lines(), dig_write_nodes(), V1_read_next_line_nat(), and Vect_coor_info().

dig_fwrite()

size_t dig_fwrite	(	const void *	ptr,
		size_t	size,
		size_t	nmemb,
		struct gvfile *	file
	)

Write struct gvfile.

Parameters

	ptr	data buffer
	size	buffer size
	nmemb	number of members
[out]	file	pointer to struct gvfile structure

Returns

number of items written

Definition at line 156 of file file.c.

References _, file, and G_fatal_error().

Referenced by dig__fwrite_port_C(), dig__fwrite_port_D(), dig__fwrite_port_F(), dig__fwrite_port_I(), dig__fwrite_port_L(), dig__fwrite_port_O(), and dig__fwrite_port_S().

dig_get_cont_lines()

plus_t** dig_get_cont_lines	(	struct Map_info *	,
		plus_t	,
		double	,
		int
	)

dig_get_head()

struct dig_head* dig_get_head

(

void

)

dig_get_next_cont_line()

plus_t dig_get_next_cont_line	(	struct Map_info *	,
		plus_t	,
		double	,
		int
	)

dig_get_poly_points()

int dig_get_poly_points	(	int	n_lines,
		struct line_pnts **	LPoints,
		int *	direction,
		struct line_pnts *	BPoints
	)

Definition at line 35 of file diglib/poly.c.

dig_head_to_map()

int dig_head_to_map	(	struct Plus_head *	,
		struct Map_info *
	)

dig_init_boxlist()

int dig_init_boxlist	(	struct boxlist *	list,
		int	have_boxes
	)

Definition at line 22 of file vector/diglib/list.c.

References NULL.

dig_init_plus()

int dig_init_plus

(

struct Plus_head *

Plus

)

Initialize Plus_head structure.

Parameters

[in,out]

Plus

pointer to Plus_head structure

Returns

1

Definition at line 30 of file plus.c.

References Plus_head::built, dig_cidx_init(), dig_spidx_init(), G_debug(), G_zero(), and GV_BUILD_NONE.

Referenced by dig_load_plus().

dig_init_portable()

void dig_init_portable	(	struct Port_info *	port,
		int	byte_order
	)

Set Port_info structure to byte order of file.

Parameters

port	pointer to Port_info structure
byte_order	ENDIAN_BIG or ENDIAN_LITTLE

Definition at line 900 of file portable.c.

References Port_info::byte_order, Port_info::dbl_cnvrt, dbl_cnvrt, dbl_order, Port_info::dbl_quick, ENDIAN_BIG, FALSE, Port_info::flt_cnvrt, flt_cnvrt, flt_order, Port_info::flt_quick, Port_info::int_cnvrt, int_cnvrt, int_order, Port_info::int_quick, Port_info::lng_cnvrt, lng_cnvrt, lng_order, Port_info::lng_quick, nat_off_t, Port_info::off_t_cnvrt, off_t_cnvrt, off_t_order, Port_info::off_t_quick, PORT_DOUBLE, PORT_FLOAT, port_init(), PORT_INT, PORT_LONG, PORT_SHORT, Port_info::shrt_cnvrt, shrt_cnvrt, shrt_order, Port_info::shrt_quick, and TRUE.

Referenced by dig__read_head(), dig_Rd_Plus_head(), dig_Rd_spidx_head(), dig_read_cidx_head(), V1_open_new_nat(), Vect_open_fidx(), Vect_save_fidx(), Vect_save_sidx(), and Vect_save_topo().

dig_is_line_degenerate()

int dig_is_line_degenerate	(	const struct line_pnts *	points,
		double	thresh
	)

Definition at line 135 of file angle.c.

References line_pnts::n_points, line_pnts::x, and line_pnts::y.

dig_isle_alloc_line()

int dig_isle_alloc_line	(	struct P_isle *	isle,
		int	add
	)

Allocate space in P_isle for add new lines.

Parameters

isle	pointer to P_area struct
add	number of isle to be added

Returns

0 on success

-1 on error

Definition at line 466 of file struct_alloc.c.

Referenced by dig_Rd_P_isle().

dig_isle_get_box()

int dig_isle_get_box	(	struct Plus_head *	,
		plus_t	,
		struct bound_box *
	)

dig_line_add_updated()

void dig_line_add_updated	(	struct Plus_head *	Plus,
		int	line,
		off_t	offset
	)

Add new line to updated.

Parameters

Plus	pointer to Plus_head structure
line	line id
offset	line offset (negative offset is ignored)

Definition at line 36 of file vector/diglib/update.c.

dig_line_box()

int dig_line_box	(	const struct line_pnts *	Points,
		struct bound_box *	Box
	)

Definition at line 24 of file vector/diglib/box.c.

Referenced by Vect_build_line_area().

dig_line_degenerate()

int dig_line_degenerate

(

const struct line_pnts *

points

)

Definition at line 179 of file angle.c.

Referenced by dig_calc_begin_angle(), and dig_calc_end_angle().

dig_line_get_area()

plus_t dig_line_get_area	(	struct Plus_head *	plus,
		plus_t	line,
		int	side
	)

Get area number on line side.

Parameters

[in]	plus	pointer Plus_head structure
[in]	line	line id
[in]	side	side id (GV_LEFT || GV_RIGHT)

Returns

area number

0 no area

-1 on error

Definition at line 342 of file plus_line.c.

Referenced by Vect_build_line_area().

dig_line_reset_updated()

void dig_line_reset_updated

(

struct Plus_head *

Plus

)

Reset number of updated lines.

Parameters

Plus	pointer to Plus_head structure

Definition at line 24 of file vector/diglib/update.c.

References Plus_head::n_uplines, and Plus_head::uplist.

dig_line_set_area()

int dig_line_set_area	(	struct Plus_head *	plus,
		plus_t	line,
		int	side,
		plus_t	area
	)

Set area number on line side.

Parameters

[in]	plus	pointer Plus_head structure
[in]	line	line id
[in]	side	side id (GV_LEFT || GV_RIGHT)
[in]	area	area id

Returns

1

Definition at line 382 of file plus_line.c.

dig_load_plus()

int dig_load_plus	(	struct Plus_head *	Plus,
		struct gvfile *	plus,
		int	head_only
	)

Reads topo file to topo structure.

Parameters

[in,out]	Plus	pointer to Plus_head structure
[in]	plus	topo file
[in]	head_only	read only head

Returns

1 on success

0 on error

Definition at line 195 of file plus.c.

References _, Plus_head::Area_offset, dig_alloc_areas(), dig_alloc_isles(), dig_alloc_lines(), dig_alloc_nodes(), dig_free_plus(), dig_fseek(), dig_init_plus(), dig_Rd_P_area(), dig_Rd_P_isle(), dig_Rd_P_line(), dig_Rd_P_node(), dig_Rd_Plus_head(), dig_set_cur_port(), G_debug(), G_fatal_error(), Plus_head::Isle_offset, Plus_head::Line_offset, Plus_head::n_areas, Plus_head::n_isles, Plus_head::n_lines, Plus_head::n_nodes, Plus_head::Node_offset, and Plus_head::port.

Referenced by Vect_open_topo().

dig_map_to_head()

int dig_map_to_head	(	struct Map_info *	,
		struct Plus_head *
	)

dig_node_add_line()

int dig_node_add_line	(	struct Plus_head *	plus,
		int	nodeid,
		int	lineid,
		const struct line_pnts *	points,
		int	type
	)

Add line info to node.

Line will be negative if END node

'node' must of course already exist space will be allocated to add 'line' to array

Lines are sorted in increasing angle order and degenerated lines are set to -9 (ignored).

Parameters

[in]	plus	pointer to Plus_head structure
[in]	nodeid	node id
[in]	lineid	line id
[in]	points	line geometry
[in]	type	line type

Returns

-1 on error

0 line not added (degenerate)

new number of lines in node

Definition at line 44 of file plus_node.c.

dig_node_add_updated()

void dig_node_add_updated	(	struct Plus_head *	Plus,
		int	node
	)

Add node to updated.

Parameters

Plus	pointer to Plus_head structure
node	node id

Definition at line 85 of file vector/diglib/update.c.

References Plus_head::alloc_upnodes, G_debug(), G_realloc, Plus_head::n_upnodes, Plus_head::uplist, and Plus_head::upnodes.

dig_node_alloc_line()

int dig_node_alloc_line	(	struct P_node *	node,
		int	add
	)

Allocate space in P_node struct.

Lines and angles arrays to add 'add' more lines

Parameters

node	pointer to P_node struct
add	number lines to be added

Returns

0 on success

-1 on error

Definition at line 69 of file struct_alloc.c.

Referenced by dig_Rd_P_node().

dig_node_angle_check()

int dig_node_angle_check	(	struct Plus_head *	plus,
		plus_t	line,
		int	type
	)

Check if angles of adjacent lines differ.

Negative line number for end point. Assume that lines are sorted in increasing angle order and angles of points and degenerated lines are set to 9 (ignored).

Parameters

[in]	plus	pointer to Plus_head structure
[in]	line	current line id, negative if request for node 2
[in]	type	line type (GV_LINE, GV_BOUNDARY or both)

Returns

1 angles differ

0 angle of a line up or down is identical

Definition at line 622 of file plus_area.c.

dig_node_line_angle()

float dig_node_line_angle	(	struct Plus_head *	plus,
		int	nodeid,
		int	lineid
	)

Return line angle.

Lines is specified by line id in topology, NOT by order number. Negative id if looking for line end point.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	nodeid	node id
[in]	lineid	line id

Returns

line angle <-PI,PI>

0 not reached

Definition at line 198 of file plus_node.c.

References _, P_node::angles, G_debug(), G_fatal_error(), P_node::lines, P_node::n_lines, and Plus_head::Node.

dig_node_reset_updated()

void dig_node_reset_updated

(

struct Plus_head *

Plus

)

Reset number of updated nodes.

Parameters

Plus	pointer to Plus_head structure

Definition at line 74 of file vector/diglib/update.c.

References Plus_head::n_upnodes, and Plus_head::uplist.

dig_out_of_memory()

int dig_out_of_memory

(

void

)

For now just print message and return error code.

Definition at line 487 of file struct_alloc.c.

References _, and G_warning().

Referenced by dig_alloc_cats(), and dig_alloc_points().

dig_point_by_line()

int dig_point_by_line	(	struct Map_info *	,
		double	,
		double	,
		double	,
		double	,
		char
	)

dig_point_to_area()

int dig_point_to_area	(	struct Map_info *	,
		double	,
		double
	)

dig_point_to_line()

int dig_point_to_line	(	struct Map_info *	,
		double	,
		double	,
		char
	)

dig_point_to_next_area()

int dig_point_to_next_area	(	struct Map_info *	,
		double	,
		double	,
		double *
	)

dig_prune()

int dig_prune	(	struct line_pnts *	points,
		double	thresh
	)

Definition at line 74 of file prune.c.

References cur_x, cur_y, line_pnts::n_points, t, line_pnts::x, and line_pnts::y.

dig_Rd_P_area()

int dig_Rd_P_area	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 351 of file plus_struct.c.

References Plus_head::Area, P_area::centroid, dig__fread_port_P(), dig_alloc_area(), dig_area_alloc_isle(), dig_area_alloc_line(), dig_free_area(), G_debug(), P_area::isles, P_area::lines, P_area::n_isles, P_area::n_lines, and NULL.

Referenced by dig_load_plus().

dig_Rd_P_isle()

int dig_Rd_P_isle	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 449 of file plus_struct.c.

References P_isle::area, dig__fread_port_P(), dig_alloc_isle(), dig_free_isle(), dig_isle_alloc_line(), G_debug(), Plus_head::Isle, P_isle::lines, P_isle::n_lines, and NULL.

Referenced by dig_load_plus().

dig_Rd_P_line()

int dig_Rd_P_line	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 163 of file plus_struct.c.

References P_topo_c::area, dig__fread_port_C(), dig__fread_port_I(), dig__fread_port_O(), dig__fread_port_P(), dig_alloc_line(), dig_alloc_topo(), dig_free_line(), dig_type_from_store(), G_debug(), GV_BOUNDARY, GV_CENTROID, GV_FACE, GV_KERNEL, GV_LINE, GV_POINT, if(), P_topo_b::left, P_topo_f::left, Plus_head::Line, P_topo_l::N1, P_topo_b::N1, P_topo_l::N2, P_topo_b::N2, NULL, Plus_head::off_t_size, P_line::offset, P_topo_b::right, P_line::topo, P_line::type, P_topo_k::volume, and Plus_head::with_z.

Referenced by dig_load_plus().

dig_Rd_P_node()

int dig_Rd_P_node	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 52 of file plus_struct.c.

References P_node::angles, dig__fread_port_D(), dig__fread_port_F(), dig__fread_port_P(), dig_alloc_node(), dig_free_node(), dig_node_alloc_line(), G_debug(), P_node::lines, P_node::n_lines, Plus_head::Node, NULL, Plus_head::with_z, P_node::x, P_node::y, and P_node::z.

Referenced by dig_load_plus().

dig_Rd_Plus_head()

int dig_Rd_Plus_head	(	struct gvfile *	fp,
		struct Plus_head *	ptr
	)

Read Plus_head from file.

Parameters

	fp	pointer to gvfile structure
[in,out]	ptr	pointer to Plus_head structure

Returns

-1 error

0 OK

Definition at line 531 of file plus_struct.c.

References _, Plus_head::Area_offset, bound_box::B, Version_info::back_major, Version_info::back_minor, Plus_head::box, Plus_head::coor_size, dig__fread_port_C(), dig__fread_port_D(), dig__fread_port_L(), dig__fread_port_O(), dig__fread_port_P(), dig_fseek(), dig_init_portable(), dig_rewind(), dig_set_cur_port(), bound_box::E, Plus_head::Edge_offset, G_debug(), G_fatal_error(), G_warning(), GRASS_VERSION_MAJOR, GRASS_VERSION_MINOR, GV_TOPO_VER_MAJOR, GV_TOPO_VER_MINOR, Plus_head::head_size, Plus_head::Hole_offset, Plus_head::Isle_offset, Plus_head::Line_offset, Version_info::major, Version_info::minor, bound_box::N, Plus_head::n_areas, Plus_head::n_blines, Plus_head::n_clines, Plus_head::n_edges, Plus_head::n_flines, Plus_head::n_holes, Plus_head::n_isles, Plus_head::n_klines, Plus_head::n_lines, Plus_head::n_llines, Plus_head::n_nodes, Plus_head::n_plines, Plus_head::n_volumes, Plus_head::Node_offset, Plus_head::off_t_size, Plus_head::port, bound_box::S, bound_box::T, Plus_head::topo, Plus_head::version, Plus_head::Volume_offset, bound_box::W, and Plus_head::with_z.

Referenced by dig_load_plus(), and Vect_open_topo().

dig_Rd_spidx()

int dig_Rd_spidx	(	struct gvfile *	fp,
		struct Plus_head *	Plus
	)

Read spatial index from sidx file Only needed when old vector is opened in update mode.

Parameters

	fp	pointer to struct gvfile
[in,out]	Plus	pointer to Plus_head structure

Returns

0

Definition at line 1223 of file spindex_rw.c.

References dig_Rd_spidx_head(), dig_rewind(), dig_set_cur_port(), dig_spidx_free(), dig_spidx_init(), G_debug(), and Plus_head::spidx_port.

dig_Rd_spidx_head()

int dig_Rd_spidx_head	(	struct gvfile *	fp,
		struct Plus_head *	ptr
	)

Read spatial index header from sidx file.

Parameters

	fp	pointer to struct gvfile
[in,out]	ptr	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 262 of file spindex_rw.c.

References _, Plus_head::Area_spidx, Plus_head::Area_spidx_offset, Version_info::back_major, Version_info::back_minor, Plus_head::coor_size, dig__fread_port_C(), dig__fread_port_I(), dig__fread_port_L(), dig__fread_port_O(), dig_fseek(), dig_init_portable(), dig_rewind(), dig_set_cur_port(), Plus_head::Face_spidx_offset, G_debug(), G_fatal_error(), G_warning(), GRASS_VERSION_MAJOR, GRASS_VERSION_MINOR, GV_SIDX_VER_MAJOR, GV_SIDX_VER_MINOR, Plus_head::Hole_spidx_offset, Plus_head::Isle_spidx, Plus_head::Isle_spidx_offset, RTree::leafcard, Plus_head::Line_spidx, Plus_head::Line_spidx_offset, Version_info::major, RTree::min_leaf_fill, RTree::min_node_fill, Version_info::minor, RTree::ndims, Plus_head::Node_spidx, Plus_head::Node_spidx_offset, RTree::nodecard, RTree::nodesize, RTree::nsides, Port_info::off_t_size, Plus_head::off_t_size, RTree::rootpos, Plus_head::spidx, Plus_head::spidx_head_size, Plus_head::spidx_port, Plus_head::spidx_with_z, t, Plus_head::version, and Plus_head::Volume_spidx_offset.

Referenced by dig_Rd_spidx().

dig_read_cidx()

int dig_read_cidx	(	struct gvfile *	fp,
		struct Plus_head *	plus,
		int	head_only
	)

Read spatial index file.

Parameters

	fp	pointer to gvfile structure
[in,out]	plus	pointer to Plus_head structure
	head_only	non-zero to read only head

Returns

0 OK

1 error

Definition at line 296 of file cindex_rw.c.

References Cat_index::a_cats, Cat_index::cat, Plus_head::cidx, Plus_head::cidx_port, Plus_head::cidx_up_to_date, dig__fread_port_I(), dig_cidx_free(), dig_cidx_init(), dig_fseek(), dig_read_cidx_head(), dig_rewind(), dig_set_cur_port(), dig_type_from_store(), G_debug(), G_malloc, Cat_index::n_cats, Plus_head::n_cidx, and Cat_index::offset.

Referenced by Vect_cidx_open().

dig_read_cidx_head()

int dig_read_cidx_head	(	struct gvfile *	fp,
		struct Plus_head *	plus
	)

Read header of cidx file.

Parameters

fp	pointer to gvfile structure
plus	pointer to Plus_head structure

Returns

0 OK

-1 error

Definition at line 122 of file cindex_rw.c.

References _, Cat_index::a_cats, Plus_head::a_cidx, Version_info::back_major, Version_info::back_minor, Cat_index::cat, Plus_head::cidx, Plus_head::cidx_head_size, Plus_head::cidx_port, Plus_head::coor_size, dig__fread_port_C(), dig__fread_port_I(), dig__fread_port_L(), dig__fread_port_O(), dig_fseek(), dig_init_portable(), dig_rewind(), dig_set_cur_port(), dig_type_from_store(), Cat_index::field, G_debug(), G_fatal_error(), G_realloc, G_warning(), GRASS_VERSION_MAJOR, GRASS_VERSION_MINOR, GV_CIDX_VER_MAJOR, GV_CIDX_VER_MINOR, Version_info::major, Version_info::minor, Cat_index::n_cats, Plus_head::n_cidx, Cat_index::n_types, Cat_index::n_ucats, NULL, Plus_head::off_t_size, Cat_index::offset, PORT_LONG_MAX, t, Cat_index::type, and Plus_head::version.

Referenced by dig_read_cidx().

dig_read_frmt_ascii()

int dig_read_frmt_ascii	(	FILE *	dascii,
		struct Format_info *	finfo
	)

Read external vector format file.

Parameters

	dascii	format file (frmt)
[out]	finfo	pointer to Format_info structure

Returns

format code

-1 on error

Definition at line 33 of file frmt.c.

References _, Format_info_pg::conninfo, Format_info_ogr::dsn, Format_info_pg::fid_column, G_chop(), G_debug(), G_getl2(), G_store(), G_strcasecmp(), G_strlcpy(), G_warning(), G_zero(), GV_FORMAT_OGR, GV_FORMAT_POSTGIS, GV_PG_FID_COLUMN, Format_info_ogr::layer_name, Format_info::ogr, Format_info::pg, Format_info_pg::schema_name, Format_info_pg::table_name, Format_info_ogr::where, and Format_info_pg::where.

dig_read_head_ascii()

int dig_read_head_ascii	(	FILE *	,
		struct dig_head *
	)

dig_restore_line()

int dig_restore_line	(	struct Plus_head *	plus,
		int	lineid,
		int	type,
		const struct line_pnts *	Points,
		const struct bound_box *	box,
		off_t	offset
	)

Restore line in Plus_head structure.

Parameters

[in,out]	plus	pointer to Plus_head structure
	type	feature type
	Points	line geometry
	box	bounding box
	offset	line offset

Returns

-1 on error

line id

Definition at line 189 of file plus_line.c.

dig_rewind()

void dig_rewind

(

struct gvfile *

file

)

Rewind file position.

Parameters

file	pointer to gvfile structure

Definition at line 87 of file file.c.

References file.

Referenced by dig_Rd_Plus_head(), dig_Rd_spidx(), dig_Rd_spidx_head(), dig_read_cidx(), dig_read_cidx_head(), dig_Wr_Plus_head(), dig_Wr_spidx(), dig_Wr_spidx_head(), dig_write_cidx(), dig_write_cidx_head(), and dig_write_plus_file().

dig_rmcr()

int dig_rmcr

(

char *

)

dig_select_areas()

int dig_select_areas	(	struct Plus_head *	Plus,
		const struct bound_box *	box,
		struct boxlist *	list
	)

Select areas with boxes by box.

Parameters

Plus	pointer to Plus_head structure
box	bounding box
list	boxlist of selected areas

Returns

number of selected areas

Definition at line 876 of file spindex.c.

References Plus_head::Area_spidx, bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, bound_box::N, RTreeSearch(), bound_box::S, Plus_head::Spidx_new, bound_box::T, and bound_box::W.

dig_select_isles()

int dig_select_isles	(	struct Plus_head *	Plus,
		const struct bound_box *	box,
		struct boxlist *	list
	)

Select isles with boxes by box.

Parameters

Plus	pointer to Plus_head structure
box	bounding box
list	boxlist of selected isles

Returns

number of selected isles

Definition at line 972 of file spindex.c.

References bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, Plus_head::Isle_spidx, bound_box::N, RTreeSearch(), bound_box::S, Plus_head::Spidx_new, bound_box::T, and bound_box::W.

Referenced by Vect_select_isles_by_box().

dig_select_lines()

int dig_select_lines	(	struct Plus_head *	Plus,
		const struct bound_box *	box,
		struct boxlist *	list
	)

Select lines with boxes by box.

Parameters

Plus	pointer to Plus_head structure
box	bounding box
list	boxlist of selected lines

Returns

number of selected lines

0 not found

Definition at line 760 of file spindex.c.

References bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, Plus_head::Line_spidx, bound_box::N, RTreeSearch(), bound_box::S, Plus_head::Spidx_new, bound_box::T, and bound_box::W.

dig_select_nodes()

int dig_select_nodes	(	struct Plus_head *	Plus,
		const struct bound_box *	box,
		struct ilist *	list
	)

Select nodes by bbox.

Parameters

Plus	pointer to Plus_head structure
box	bounding box
list	list of selected lines

Returns

number of selected nodes

-1 on error

Definition at line 669 of file spindex.c.

References bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, bound_box::N, Plus_head::Node_spidx, RTreeSearch(), bound_box::S, Plus_head::Spidx_new, bound_box::T, and bound_box::W.

Referenced by Vect_select_nodes_by_box().

dig_set_cur_port()

int dig_set_cur_port

(

struct Port_info *

port

)

Set current Port_info structure.

Parameters

port	pointer to Port_info structure

Returns

0

Definition at line 996 of file portable.c.

References Cur_Head.

Referenced by dig__read_head(), dig__write_head(), dig_load_plus(), dig_Rd_Plus_head(), dig_Rd_spidx(), dig_Rd_spidx_head(), dig_read_cidx(), dig_read_cidx_head(), dig_Wr_Plus_head(), dig_Wr_spidx(), dig_Wr_spidx_head(), dig_write_cidx(), dig_write_cidx_head(), dig_write_plus_file(), V1_delete_line_nat(), Vect_open_fidx(), and Vect_save_fidx().

dig_set_distance_to_line_tolerance()

int dig_set_distance_to_line_tolerance

(

double

t

)

Definition at line 24 of file vector/diglib/line_dist.c.

References t, and TOLERANCE.

dig_spidx_add_area()

int dig_spidx_add_area	(	struct Plus_head *	Plus,
		int	area,
		const struct bound_box *	box
	)

Add new area to spatial index.

Parameters

Plus	pointer to Plus_head structure
area	area id
box	bounding box

Returns

0

Definition at line 360 of file spindex.c.

References Plus_head::Area_spidx, bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, bound_box::N, RTreeInsertRect(), bound_box::S, bound_box::T, and bound_box::W.

dig_spidx_add_isle()

int dig_spidx_add_isle	(	struct Plus_head *	Plus,
		int	isle,
		const struct bound_box *	box
	)

Add new island to spatial index.

Parameters

Plus	pointer to Plus_head structure
isle	isle id
box	bounding box

Returns

0

Definition at line 395 of file spindex.c.

References bound_box::B, RTree_Rect::boundary, bound_box::E, G_debug(), G_malloc, Plus_head::Isle_spidx, bound_box::N, RTreeInsertRect(), bound_box::S, bound_box::T, and bound_box::W.

dig_spidx_add_line()

int dig_spidx_add_line	(	struct Plus_head *	Plus,
		int	line,
		const struct bound_box *	box
	)

Add new line to spatial index.

Parameters

Plus	pointer to Plus_head structure
line	line id
box	bounding box

Returns

0

Definition at line 326 of file spindex.c.

dig_spidx_add_node()

int dig_spidx_add_node	(	struct Plus_head *	Plus,
		int	node,
		double	x,
		double	y,
		double	z
	)

Add new node to spatial index.

Parameters

Plus	pointer to Plus_head structure
node	node id
x,y,z	node coordinates

Returns

1 OK

0 on error

Definition at line 291 of file spindex.c.

References RTree_Rect::boundary, G_debug(), G_malloc, Plus_head::Node_spidx, RTreeInsertRect(), and x.

Referenced by dig_add_node().

dig_spidx_del_area()

int dig_spidx_del_area	(	struct Plus_head *	Plus,
		int	area
	)

Delete area from spatial index.

G_fatal_error() called on error.

Parameters

Plus	pointer to Plus_head structure
area	area id

Returns

0

Definition at line 515 of file spindex.c.

References _, Plus_head::Area, Plus_head::Area_spidx, RTree_Rect::boundary, G_debug(), G_fatal_error(), G_malloc, Plus_head::Line, P_area::lines, P_topo_b::N1, Plus_head::Node, NULL, RTreeDeleteRect(), P_line::topo, P_node::x, P_node::y, and P_node::z.

dig_spidx_del_isle()

int dig_spidx_del_isle	(	struct Plus_head *	Plus,
		int	isle
	)

Delete isle from spatial index.

G_fatal_error() called on error.

Parameters

Plus	pointer to Plus_head structure
isle	isle id

Returns

0

Definition at line 568 of file spindex.c.

References _, RTree_Rect::boundary, G_debug(), G_fatal_error(), G_malloc, Plus_head::Isle, Plus_head::Isle_spidx, Plus_head::Line, P_isle::lines, P_topo_b::N1, Plus_head::Node, RTreeDeleteRect(), P_line::topo, P_node::x, P_node::y, and P_node::z.

dig_spidx_del_line()

int dig_spidx_del_line	(	struct Plus_head *	Plus,
		int	line,
		double	x,
		double	y,
		double	z
	)

Delete line from spatial index.

G_fatal_error() called on error.

Parameters

Plus	pointer to Plus_head structure
line	line id
x,y,z	coordinates

Returns

0

Definition at line 473 of file spindex.c.

dig_spidx_del_node()

int dig_spidx_del_node	(	struct Plus_head *	Plus,
		int	node
	)

Delete node from spatial index.

G_fatal_error() called on error.

Parameters

Plus	pointer to Plus_head structure
node	node id

Returns

0

Definition at line 430 of file spindex.c.

References _, RTree_Rect::boundary, G_debug(), G_fatal_error(), G_malloc, Plus_head::Node, Plus_head::Node_spidx, RTreeDeleteRect(), P_node::x, P_node::y, and P_node::z.

dig_spidx_free()

void dig_spidx_free

(

struct Plus_head *

Plus

)

Free spatial index (nodes, lines, areas, isles)

Parameters

Plus	pointer to Plus_head structure

Definition at line 243 of file spindex.c.

References Plus_head::Area_spidx, RTree::fd, Plus_head::Isle_spidx, Plus_head::Line_spidx, Plus_head::Node_spidx, RTreeDestroyTree(), and Plus_head::Spidx_new.

Referenced by dig_free_plus(), and dig_Rd_spidx().

dig_spidx_free_areas()

void dig_spidx_free_areas

(

struct Plus_head *

Plus

)

Reset spatial index for areas.

Parameters

Plus	pointer to Plus_head structure

Definition at line 177 of file spindex.c.

References Plus_head::Area_spidx, RTree::fd, and Plus_head::with_z.

dig_spidx_free_isles()

void dig_spidx_free_isles

(

struct Plus_head *

Plus

)

Reset spatial index for isles.

Parameters

Plus	pointer to Plus_head structure

Definition at line 210 of file spindex.c.

References RTree::fd, Plus_head::Isle_spidx, and Plus_head::with_z.

dig_spidx_free_lines()

void dig_spidx_free_lines

(

struct Plus_head *

Plus

)

Free spatial index for lines.

Parameters

Plus	pointer to Plus_head structure

Definition at line 144 of file spindex.c.

References RTree::fd, Plus_head::Line_spidx, and Plus_head::with_z.

dig_spidx_free_nodes()

void dig_spidx_free_nodes

(

struct Plus_head *

Plus

)

Free spatial index for nodes.

Parameters

Plus	pointer to Plus_head structure

Definition at line 111 of file spindex.c.

References RTree::fd, Plus_head::Node_spidx, and Plus_head::with_z.

dig_spidx_init()

int dig_spidx_init

(

struct Plus_head *

Plus

)

Initit spatial index (nodes, lines, areas, isles)

Parameters

Plus	pointer to Plus_head structure

Returns

1 OK

0 on error

Definition at line 35 of file spindex.c.

References G_debug(), Plus_head::Spidx_file, Plus_head::spidx_with_z, and Plus_head::with_z.

Referenced by dig_init_plus(), and dig_Rd_spidx().

dig_spindex_init()

int dig_spindex_init

(

struct Plus_head *

)

dig_start_clock()

int dig_start_clock

(

long *

)

dig_stop_clock()

int dig_stop_clock

(

long *

)

dig_stop_clock_str()

char* dig_stop_clock_str

(

long *

)

dig_struct_copy()

int dig_struct_copy	(	void *	,
		void *	,
		int
	)

dig_test_for_intersection()

int dig_test_for_intersection	(	double	ax1,
		double	ay1,
		double	ax2,
		double	ay2,
		double	bx1,
		double	by1,
		double	bx2,
		double	by2
	)

Definition at line 57 of file linecros.c.

dig_type_from_store()

int dig_type_from_store

(

int

stype

)

Convert type from store type.

Parameters

stype

feature store type

Returns

type

Definition at line 56 of file vector/diglib/type.c.

References GV_AREA, GV_BOUNDARY, GV_CENTROID, GV_FACE, GV_KERNEL, GV_LINE, GV_POINT, GV_STORE_AREA, GV_STORE_BOUNDARY, GV_STORE_CENTROID, GV_STORE_FACE, GV_STORE_KERNEL, GV_STORE_LINE, GV_STORE_POINT, GV_STORE_VOLUME, and GV_VOLUME.

Referenced by dig_Rd_P_line(), dig_read_cidx(), dig_read_cidx_head(), and dig_write_cidx().

dig_type_to_store()

int dig_type_to_store

(

int

type

)

Convert type to store type.

Parameters

type	feature type

Returns

store type

Definition at line 25 of file vector/diglib/type.c.

Referenced by dig_Wr_P_line(), dig_write_cidx(), and dig_write_cidx_head().

dig_unit_conversion()

double dig_unit_conversion

(

void

)

dig_which_node()

int dig_which_node	(	struct Plus_head *	plus,
		double	x,
		double	y,
		double	thresh
	)

Return actual index into node arrays of the first set of matching coordinates.

Parameters

[in]	plus	pointer to Plus_head structure
[in]	x,y	coordinates
[in]	thresh	threshold value

Returns

node index

-1 if no node found

Definition at line 146 of file plus_node.c.

References Plus_head::n_nodes, Plus_head::Node, NULL, P_node::x, x, and P_node::y.

dig_Wr_P_area()

int dig_Wr_P_area	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 411 of file plus_struct.c.

References Plus_head::Area, P_area::centroid, dig__fwrite_port_P(), P_area::isles, P_area::lines, P_area::n_isles, P_area::n_lines, and NULL.

Referenced by dig_write_areas().

dig_Wr_P_isle()

int dig_Wr_P_isle	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 492 of file plus_struct.c.

References P_isle::area, dig__fwrite_port_P(), Plus_head::Isle, P_isle::lines, P_isle::n_lines, and NULL.

Referenced by dig_write_isles().

dig_Wr_P_line()

int dig_Wr_P_line	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 260 of file plus_struct.c.

References P_topo_c::area, dig__fwrite_port_C(), dig__fwrite_port_I(), dig__fwrite_port_O(), dig__fwrite_port_P(), dig_type_to_store(), G_debug(), GV_BOUNDARY, GV_CENTROID, GV_FACE, GV_KERNEL, GV_LINE, if(), P_topo_b::left, P_topo_f::left, Plus_head::Line, P_topo_l::N1, P_topo_b::N1, P_topo_l::N2, P_topo_b::N2, NULL, Plus_head::off_t_size, P_line::offset, P_topo_b::right, P_topo_f::right, P_line::topo, P_line::type, P_topo_k::volume, and Plus_head::with_z.

Referenced by dig_write_lines().

dig_Wr_P_node()

int dig_Wr_P_node	(	struct Plus_head *	Plus,
		int	i,
		struct gvfile *	fp
	)

Definition at line 118 of file plus_struct.c.

References P_node::angles, dig__fwrite_port_D(), dig__fwrite_port_F(), dig__fwrite_port_P(), G_debug(), P_node::lines, P_node::n_lines, Plus_head::Node, NULL, Plus_head::with_z, P_node::x, P_node::y, and P_node::z.

Referenced by dig_write_nodes().

dig_Wr_Plus_head()

int dig_Wr_Plus_head	(	struct gvfile *	fp,
		struct Plus_head *	ptr
	)

Write Plus_head to file.

ptr->off_t_size is used for both coor and topo files, but their sizes (ptr->coor_size for coor and no variable for topo) can be different. If either file is greater than PORT_LONG_MAX, ptr->off_t_size must be 8. This function determines this value of ptr->off_t_size and writes it to the file.

Parameters

	fp	pointer to gvfile structure
[in,out]	ptr	pointer to Plus_head structure

Returns

-1 error

0 OK

Definition at line 711 of file plus_struct.c.

References Plus_head::Area, Plus_head::Area_offset, bound_box::B, Plus_head::box, Port_info::byte_order, Plus_head::coor_size, dig__fwrite_port_C(), dig__fwrite_port_D(), dig__fwrite_port_L(), dig__fwrite_port_O(), dig__fwrite_port_P(), dig_ftell(), dig_rewind(), dig_set_cur_port(), bound_box::E, Plus_head::Edge_offset, G_debug(), GV_BOUNDARY, GV_CENTROID, GV_FACE, GV_KERNEL, GV_LINE, GV_TOPO_EARLIEST_MAJOR, GV_TOPO_EARLIEST_MINOR, GV_TOPO_VER_MAJOR, GV_TOPO_VER_MINOR, Plus_head::Hole_offset, Plus_head::Isle, Plus_head::Isle_offset, Plus_head::Line, Plus_head::Line_offset, bound_box::N, Plus_head::n_areas, Plus_head::n_blines, Plus_head::n_clines, Plus_head::n_edges, Plus_head::n_flines, Plus_head::n_holes, Plus_head::n_isles, P_area::n_isles, Plus_head::n_klines, Plus_head::n_lines, P_node::n_lines, P_area::n_lines, P_isle::n_lines, Plus_head::n_llines, Plus_head::n_nodes, Plus_head::n_plines, Plus_head::n_volumes, Plus_head::Node, Plus_head::Node_offset, NULL, Plus_head::off_t_size, Plus_head::port, PORT_LONG_MAX, bound_box::S, bound_box::T, P_line::type, Plus_head::Volume_offset, bound_box::W, and Plus_head::with_z.

Referenced by dig_write_plus_file().

dig_Wr_spidx()

int dig_Wr_spidx	(	struct gvfile *	fp,
		struct Plus_head *	Plus
	)

Write spatial index to file.

Parameters

[out]	fp	pointer to struct gvfile
	Plus	pointer to Plus_head structure

Returns

0

Definition at line 1177 of file spindex_rw.c.

References dig_rewind(), dig_set_cur_port(), dig_Wr_spidx_head(), G_debug(), Plus_head::Node_spidx_offset, and Plus_head::spidx_port.

Referenced by Vect_save_sidx().

dig_Wr_spidx_head()

int dig_Wr_spidx_head	(	struct gvfile *	fp,
		struct Plus_head *	ptr
	)

Write spatial index header to file.

Parameters

[in,out]	fp	pointer to struct gvfile
	ptr	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 55 of file spindex_rw.c.

References _, Plus_head::Area_spidx, Plus_head::Area_spidx_offset, Port_info::byte_order, Plus_head::coor_size, dig__fwrite_port_C(), dig__fwrite_port_I(), dig__fwrite_port_L(), dig__fwrite_port_O(), dig_ftell(), dig_rewind(), dig_set_cur_port(), Plus_head::Face_spidx_offset, G_debug(), G_fatal_error(), GV_SIDX_EARLIEST_MAJOR, GV_SIDX_EARLIEST_MINOR, GV_SIDX_VER_MAJOR, GV_SIDX_VER_MINOR, Plus_head::Hole_spidx_offset, if(), Plus_head::Isle_spidx, Plus_head::Isle_spidx_offset, Plus_head::Line_spidx, Plus_head::Line_spidx_offset, RTree::n_nodes, Plus_head::Node_spidx, Plus_head::Node_spidx_offset, RTree::nodesize, Port_info::off_t_size, Plus_head::off_t_size, PORT_INT_MAX, Plus_head::spidx_head_size, Plus_head::spidx_port, Plus_head::spidx_with_z, t, and Plus_head::Volume_spidx_offset.

Referenced by dig_Wr_spidx().

dig_write_areas()

int dig_write_areas	(	struct gvfile *	plus,
		struct Plus_head *	Plus
	)

Writes topo structure (areas) to topo file.

Parameters

[in,out]	plus	topo file
[in]	Plus	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 368 of file plus.c.

References Plus_head::Area_offset, dig_ftell(), dig_Wr_P_area(), and Plus_head::n_areas.

Referenced by dig_write_plus_file().

dig_write_cidx()

int dig_write_cidx	(	struct gvfile *	fp,
		struct Plus_head *	plus
	)

Definition at line 252 of file cindex_rw.c.

References Cat_index::cat, Plus_head::cidx, Plus_head::cidx_port, dig__fwrite_port_I(), dig_ftell(), dig_rewind(), dig_set_cur_port(), dig_type_from_store(), dig_type_to_store(), dig_write_cidx_head(), Cat_index::n_cats, Plus_head::n_cidx, and Cat_index::offset.

dig_write_cidx_head()

int dig_write_cidx_head	(	struct gvfile *	fp,
		struct Plus_head *	plus
	)

Definition at line 25 of file cindex_rw.c.

References Port_info::byte_order, Plus_head::cidx, Plus_head::cidx_port, Plus_head::coor_size, dig__fwrite_port_C(), dig__fwrite_port_I(), dig__fwrite_port_L(), dig__fwrite_port_O(), dig_ftell(), dig_rewind(), dig_set_cur_port(), dig_type_to_store(), Cat_index::field, G_debug(), GV_CIDX_EARLIEST_MAJOR, GV_CIDX_EARLIEST_MINOR, GV_CIDX_VER_MAJOR, GV_CIDX_VER_MINOR, Cat_index::n_cats, Plus_head::n_cidx, Cat_index::n_types, Cat_index::n_ucats, Plus_head::off_t_size, Cat_index::offset, PORT_LONG_MAX, t, and Cat_index::type.

Referenced by dig_write_cidx().

dig_write_file_checks()

int dig_write_file_checks	(	struct gvfile *	,
		struct Plus_head *
	)

dig_write_frmt_ascii()

int dig_write_frmt_ascii	(	FILE *	,
		struct Format_info *	,
		int
	)

dig_write_head_ascii()

int dig_write_head_ascii	(	FILE *	,
		struct dig_head *
	)

dig_write_isles()

int dig_write_isles	(	struct gvfile *	plus,
		struct Plus_head *	Plus
	)

Writes topo structure (isles) to topo file.

Parameters

[in,out]	plus	topo file
[in]	Plus	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 392 of file plus.c.

References dig_ftell(), dig_Wr_P_isle(), Plus_head::Isle_offset, and Plus_head::n_isles.

Referenced by dig_write_plus_file().

dig_write_lines()

int dig_write_lines	(	struct gvfile *	plus,
		struct Plus_head *	Plus
	)

Writes topo structure (lines) to topo file.

Parameters

[in,out]	plus	topo file
[in]	Plus	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 344 of file plus.c.

References dig_ftell(), dig_Wr_P_line(), Plus_head::Line_offset, and Plus_head::n_lines.

Referenced by dig_write_plus_file().

dig_write_nodes()

int dig_write_nodes	(	struct gvfile *	plus,
		struct Plus_head *	Plus
	)

Writes topo structure (nodes) to topo file.

Parameters

[in,out]	plus	topo file
[in]	Plus	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 321 of file plus.c.

References dig_ftell(), dig_Wr_P_node(), Plus_head::n_nodes, and Plus_head::Node_offset.

Referenced by dig_write_plus_file().

dig_write_plus_file()

int dig_write_plus_file	(	struct gvfile *	fp_plus,
		struct Plus_head *	Plus
	)

Writes topo structure to topo file.

Parameters

[in,out]	fp_plus	topo file
[in]	Plus	pointer to Plus_head structure

Returns

0 on success

-1 on error

Definition at line 271 of file plus.c.

References _, dig_fflush(), dig_rewind(), dig_set_cur_port(), dig_Wr_Plus_head(), dig_write_areas(), dig_write_isles(), dig_write_lines(), dig_write_nodes(), G_warning(), and Plus_head::port.

Referenced by Vect_save_topo().

dig_x_intersect()

double dig_x_intersect	(	double	beg_x,
		double	end_x,
		double	beg_y,
		double	end_y,
		double	Y
	)

Definition at line 20 of file inside.c.

References b, and Y.

rtree_search()

int rtree_search	(	struct RTree *	t,
		struct RTree_Rect *	r,
		SearchHitCallback	shcb,
		void *	cbarg,
		struct Plus_head *	Plus
	)

Search spatial index file Can't use regular RTreeSearch() here because sidx must be read with dig__fread_port_*() functions.

Parameters

t	pointer to RTree
r	search rectangle
shcb	user-provided callback
cbarg	argument for shcb
Plus	pointer to Plus_head structure

Returns

number of qualifying rectangles

Definition at line 1387 of file spindex_rw.c.