GRASS GIS 8 Programmer's Manual
8.5.0dev(2024)-a16a02f7eb
|
Lines cache for reading feature (non-native formats) More...
#include <dig_structs.h>
Data Fields | |
struct line_pnts ** | lines |
Lines array. More... | |
int * | lines_types |
List of line types (GV_POINT, GV_LINE, ...) More... | |
int * | lines_cats |
List of line cats (used only for PostGIS Topology access) More... | |
int | lines_alloc |
Number of allocated lines in cache. More... | |
int | lines_num |
Number of lines which forms current feature. More... | |
int | lines_next |
Next line to be read from cache. More... | |
long | fid |
Feature id. More... | |
SF_FeatureType | sf_type |
Simple feature type (currently used only by PG format) More... | |
int | ctype |
Cache type. More... | |
Lines cache for reading feature (non-native formats)
Definition at line 450 of file dig_structs.h.
int Format_info_cache::ctype |
Cache type.
Currently used only by PostGIS Topology which allows caching the whole map (CACHE_MAP)
Definition at line 496 of file dig_structs.h.
Referenced by V1_rewind_pg(), Vect__get_area_points(), and Vect_get_isle_points().
long Format_info_cache::fid |
Feature id.
Definition at line 486 of file dig_structs.h.
Referenced by V1_open_old_ogr(), and V1_rewind_pg().
struct line_pnts** Format_info_cache::lines |
Lines array.
Some simple features require more allocated lines (eg. polygon with more rings, multipoint, or geometrycollection)
Line cache is also used for PostGIS Topology to store single topological element (ctype == CACHE_FEATURE) or all elements from the map (ctype == CACHE_MAP) to avoid random access which is very costly.
Definition at line 462 of file dig_structs.h.
Referenced by Vect__free_cache(), and Vect__reallocate_cache().
int Format_info_cache::lines_alloc |
Number of allocated lines in cache.
Definition at line 474 of file dig_structs.h.
Referenced by Vect__free_cache(), and Vect__reallocate_cache().
int* Format_info_cache::lines_cats |
List of line cats (used only for PostGIS Topology access)
Definition at line 470 of file dig_structs.h.
Referenced by Vect__free_cache(), and Vect__reallocate_cache().
int Format_info_cache::lines_next |
Next line to be read from cache.
Definition at line 482 of file dig_structs.h.
Referenced by V1_rewind_ogr(), and V1_rewind_pg().
int Format_info_cache::lines_num |
Number of lines which forms current feature.
Definition at line 478 of file dig_structs.h.
Referenced by V1_rewind_ogr(), and V1_rewind_pg().
int* Format_info_cache::lines_types |
List of line types (GV_POINT, GV_LINE, ...)
Definition at line 466 of file dig_structs.h.
Referenced by Vect__free_cache(), and Vect__reallocate_cache().
SF_FeatureType Format_info_cache::sf_type |
Simple feature type (currently used only by PG format)
Definition at line 490 of file dig_structs.h.