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mvt.h
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24 
25 #ifndef MVT_H_
26 #define MVT_H_ 1
27 
28 #include <stdlib.h>
29 #include "postgres.h"
30 #include "utils/builtins.h"
31 #include "utils/array.h"
32 #include "utils/typcache.h"
33 #include "utils/lsyscache.h"
34 #include "catalog/pg_type.h"
35 #include "catalog/namespace.h"
36 #include "executor/executor.h"
37 #include "access/htup_details.h"
38 #include "access/htup.h"
39 #include "../postgis_config.h"
40 #include "liblwgeom.h"
41 #include "liblwgeom_internal.h"
42 #include "lwgeom_pg.h"
43 #include "lwgeom_log.h"
44 
45 #ifdef HAVE_LIBPROTOBUF
46 
47 #include "vector_tile.pb-c.h"
48 
49 typedef struct mvt_column_cache
50 {
53  Datum *values;
54  bool *nulls;
55  TupleDesc tupdesc;
57 
58 typedef struct mvt_agg_context
59 {
60  char *name;
62  char *geom_name;
64  HeapTupleHeader row;
65  VectorTile__Tile__Feature *feature;
66  VectorTile__Tile__Layer *layer;
67  VectorTile__Tile *tile;
81 
82 /* Prototypes */
83 LWGEOM *mvt_geom(LWGEOM *geom, const GBOX *bounds, uint32_t extent, uint32_t buffer, bool clip_geom);
86 bytea *mvt_agg_finalfn(mvt_agg_context *ctx);
88 mvt_agg_context * mvt_ctx_deserialize(const bytea *ba);
90 
91 
92 #endif /* HAVE_LIBPROTOBUF */
93 
94 #endif
HeapTupleHeader row
Definition: mvt.h:64
void mvt_agg_transfn(mvt_agg_context *ctx)
Aggregation step.
Definition: mvt.c:963
struct mvt_kv_double_value * double_values_hash
Definition: mvt.h:72
struct mvt_kv_string_value * string_values_hash
Definition: mvt.h:70
uint32_t row_columns
Definition: mvt.h:78
char * name
Definition: mvt.h:60
LWGEOM * mvt_geom(LWGEOM *geom, const GBOX *bounds, uint32_t extent, uint32_t buffer, bool clip_geom)
Transform a geometry into vector tile coordinate space.
Definition: mvt.c:788
struct mvt_column_cache mvt_column_cache
mvt_column_cache column_cache
Definition: mvt.h:79
VectorTile__Tile * tile
Definition: mvt.h:67
char * geom_name
Definition: mvt.h:62
struct mvt_kv_float_value * float_values_hash
Definition: mvt.h:71
bool * nulls
Definition: mvt.h:54
struct mvt_agg_context mvt_agg_context
unsigned int uint32_t
Definition: uthash.h:78
VectorTile__Tile__Layer * layer
Definition: mvt.h:66
Datum buffer(PG_FUNCTION_ARGS)
mvt_agg_context * mvt_ctx_combine(mvt_agg_context *ctx1, mvt_agg_context *ctx2)
Definition: mvt.c:1234
uint32_t keys_hash_i
Definition: mvt.h:77
size_t features_capacity
Definition: mvt.h:68
Definition: mvt.c:56
struct mvt_kv_uint_value * uint_values_hash
Definition: mvt.h:73
uint32_t geom_index
Definition: mvt.h:63
uint32_t * column_keys_index
Definition: mvt.h:51
struct mvt_kv_bool_value * bool_values_hash
Definition: mvt.h:75
Datum * values
Definition: mvt.h:53
uint32_t values_hash_i
Definition: mvt.h:76
uint32_t extent
Definition: mvt.h:61
VectorTile__Tile__Feature * feature
Definition: mvt.h:65
struct mvt_kv_key * keys_hash
Definition: mvt.h:69
bytea * mvt_ctx_serialize(mvt_agg_context *ctx)
Definition: mvt.c:1059
struct mvt_kv_sint_value * sint_values_hash
Definition: mvt.h:74
void mvt_agg_init_context(mvt_agg_context *ctx)
Initialize aggregation context.
Definition: mvt.c:920
uint32_t * column_oid
Definition: mvt.h:52
mvt_agg_context * mvt_ctx_deserialize(const bytea *ba)
Definition: mvt.c:1074
TupleDesc tupdesc
Definition: mvt.h:55
bytea * mvt_agg_finalfn(mvt_agg_context *ctx)
Finalize aggregation.
Definition: mvt.c:1267
This library is the generic geometry handling section of PostGIS.