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Optimized GIS functions
heap/hp_delete.c: Added comments mysql-test/r/gis.result: Updated results after name changes (all results line are unchanged) mysql-test/r/show_check.result: Update test results after fix in hp_delete.cc mysql-test/t/gis.test: Changed table names to longer, hopefully non conflicting ones. Added missing drop table mysys/hash.c: Inendation cleanup mysys/tree.c: Updated comments Decrease tree->allocated on delete (for status) sql/field.cc: Added safety checking for GIS objects sql/gstream.cc: Added copyright message Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/gstream.h: Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/item_create.cc: Indentation fixup sql/item_geofunc.cc: Use new gis interface functions and new gis class names. Simple optimizations Indentation fixups Fixed a lot of unlikely but possible errors. sql/item_geofunc.h: Moved SRID_SIZE to spatial.h sql/spatial.cc: Added copyright message Made a lot of speed/space optimizations Changed class names to be MySQL compliant sql/spatial.h: Made a lot of speed/space optimizations Changed class names to be MySQL compliant Indentation fixes Use bool instead of int as result type for functions that only return 0 or 1 sql/sql_string.cc: Simple optimizations sql/sql_string.h: Simple cleanups sql/structs.h: Added LEX_STRING_WITH_INIT (needed by spatial.cc)
This commit is contained in:
unknown
476
sql/spatial.h
476
sql/spatial.h
@ -17,118 +17,80 @@
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#ifndef _spatial_h
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#define _spatial_h
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const uint POINT_DATA_SIZE = 8+8;
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const uint WKB_HEADER_SIZE = 1+4;
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const uint SRID_SIZE= 4;
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const uint SIZEOF_STORED_DOUBLE= 8;
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const uint POINT_DATA_SIZE= SIZEOF_STORED_DOUBLE*2;
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const uint WKB_HEADER_SIZE= 1+4;
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const uint32 GET_SIZE_ERROR= ((uint32) -1);
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struct stPoint2D
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struct st_point_2d
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{
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double x;
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double y;
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};
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struct stLinearRing
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struct st_linear_ring
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{
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size_t n_points;
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stPoint2D points;
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uint32 n_points;
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st_point_2d points;
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};
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/***************************** MBR *******************************/
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/*
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It's ok that a lot of the functions are inline as these are only used once
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in MySQL
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*/
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struct MBR
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{
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double xmin, ymin, xmax, ymax;
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MBR()
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{
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xmin=DBL_MAX;
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ymin=DBL_MAX;
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xmax=-DBL_MAX;
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ymax=-DBL_MAX;
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xmin= ymin= DBL_MAX;
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xmax= ymax= -DBL_MAX;
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}
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MBR(const double &_xmin, const double &_ymin,
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const double &_xmax, const double &_ymax)
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{
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xmin=_xmin;
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ymin=_ymin;
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xmax=_xmax;
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ymax=_ymax;
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}
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MBR(const double xmin_arg, const double ymin_arg,
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const double xmax_arg, const double ymax_arg)
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:xmin(xmin_arg), ymin(ymin_arg), xmax(xmax_arg), ymax(ymax_arg)
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{}
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MBR(const stPoint2D &min, const stPoint2D &max)
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{
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xmin=min.x;
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ymin=min.y;
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xmax=max.x;
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ymax=max.y;
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}
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double xmin;
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double ymin;
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double xmax;
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double ymax;
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void add_xy(double x, double y)
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MBR(const st_point_2d &min, const st_point_2d &max)
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:xmin(min.x), ymin(min.y), xmax(max.x), ymax(max.y)
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{}
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inline void add_xy(double x, double y)
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{
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/* Not using "else" for proper one point MBR calculation */
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if (x<xmin)
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{
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xmin=x;
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}
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if (x>xmax)
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{
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xmax=x;
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}
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if (y<ymin)
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{
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ymin=y;
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}
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if (y>ymax)
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{
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ymax=y;
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}
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if (x < xmin)
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xmin= x;
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if (x > xmax)
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xmax= x;
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if (y < ymin)
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ymin= y;
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if (y > ymax)
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ymax= y;
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}
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void add_xy(const char *px, const char *py)
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{
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double x, y;
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float8get(x, px);
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float8get(y, py);
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/* Not using "else" for proper one point MBR calculation */
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if (x<xmin)
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{
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xmin=x;
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}
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if (x>xmax)
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{
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xmax=x;
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}
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if (y<ymin)
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{
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ymin=y;
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}
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if (y>ymax)
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{
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ymax=y;
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}
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add_xy(x,y);
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}
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void add_mbr(const MBR *mbr)
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{
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if (mbr->xmin<xmin)
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{
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xmin=mbr->xmin;
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}
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if (mbr->xmax>xmax)
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{
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xmax=mbr->xmax;
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}
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if (mbr->ymin<ymin)
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{
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ymin=mbr->ymin;
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}
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if (mbr->ymax>ymax)
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{
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ymax=mbr->ymax;
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}
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if (mbr->xmin < xmin)
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xmin= mbr->xmin;
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if (mbr->xmax > xmax)
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xmax= mbr->xmax;
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if (mbr->ymin < ymin)
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ymin= mbr->ymin;
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if (mbr->ymax > ymax)
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ymax= mbr->ymax;
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}
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int equals(const MBR *mbr)
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@ -177,12 +139,12 @@ struct MBR
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int overlaps(const MBR *mbr)
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{
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int lb = mbr->inner_point(xmin, ymin);
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int rb = mbr->inner_point(xmax, ymin);
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int rt = mbr->inner_point(xmax, ymax);
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int lt = mbr->inner_point(xmin, ymax);
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int lb= mbr->inner_point(xmin, ymin);
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int rb= mbr->inner_point(xmax, ymin);
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int rt= mbr->inner_point(xmax, ymax);
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int lt= mbr->inner_point(xmin, ymax);
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int a = lb+rb+rt+lt;
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int a = lb+rb+rt+lt;
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return (a>0) && (a<4) && (!within(mbr));
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}
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};
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@ -192,16 +154,18 @@ struct MBR
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class Geometry;
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typedef int (Geometry::*GF_InitFromText)(GTextReadStream *, String *);
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typedef int (Geometry::*GF_GetDataAsText)(String *) const;
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typedef size_t (Geometry::*GF_GetDataSize)() const;
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typedef int (Geometry::*GF_GetMBR)(MBR *) const;
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typedef bool (Geometry::*GF_InitFromText)(Gis_read_stream *, String *);
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typedef bool (Geometry::*GF_GetDataAsText)(String *, const char **);
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typedef uint32 (Geometry::*GF_GetDataSize)() const;
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typedef bool (Geometry::*GF_GetMBR)(MBR *, const char **end) const;
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typedef int (Geometry::*GF_GetD)(double *) const;
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typedef int (Geometry::*GF_GetI)(int *) const;
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typedef int (Geometry::*GF_GetUI)(uint32 *) const;
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typedef int (Geometry::*GF_GetWS)(String *) const;
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typedef int (Geometry::*GF_GetUIWS)(uint32, String *) const;
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typedef bool (Geometry::*GF_GetD)(double *) const;
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typedef bool (Geometry::*GF_GetD_AND_END)(double *, const char **) const;
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typedef bool (Geometry::*GF_GetI)(int *) const;
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typedef bool (Geometry::*GF_GetUI)(uint32 *) const;
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typedef bool (Geometry::*GF_GetUI_AND_END)(uint32 *, const char **) const;
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typedef bool (Geometry::*GF_GetWS)(String *);
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typedef bool (Geometry::*GF_GetUIWS)(uint32, String *) const;
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#define GEOM_METHOD_PRESENT(geom_obj, method)\
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(geom_obj.m_vmt->method != &Geometry::method)
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@ -211,21 +175,22 @@ class Geometry
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public:
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enum wkbType
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{
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wkbPoint = 1,
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wkbLineString = 2,
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wkbPolygon = 3,
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wkbMultiPoint = 4,
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wkbMultiLineString = 5,
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wkbMultiPolygon = 6,
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wkbGeometryCollection = 7
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wkbPoint= 1,
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wkbLineString= 2,
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wkbPolygon= 3,
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wkbMultiPoint= 4,
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wkbMultiLineString= 5,
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wkbMultiPolygon= 6,
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wkbGeometryCollection= 7,
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wkb_end=8
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};
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enum wkbByteOrder
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{
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wkbXDR = 0, /* Big Endian */
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wkbNDR = 1 /* Little Endian */
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wkbXDR= 0, /* Big Endian */
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wkbNDR= 1 /* Little Endian */
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};
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class GClassInfo
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class Gis_class_info
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{
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public:
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GF_InitFromText init_from_wkt;
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@ -235,14 +200,14 @@ public:
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GF_GetD get_x;
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GF_GetD get_y;
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GF_GetD length;
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GF_GetD area;
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GF_GetD_AND_END area;
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GF_GetI is_closed;
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GF_GetUI num_interior_ring;
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GF_GetUI num_points;
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GF_GetUI num_geometries;
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GF_GetUI dimension;
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GF_GetUI_AND_END dimension;
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GF_GetWS start_point;
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GF_GetWS end_point;
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@ -253,248 +218,291 @@ public:
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GF_GetUIWS interior_ring_n;
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GF_GetUIWS geometry_n;
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LEX_STRING m_name;
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int m_type_id;
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const char *m_name;
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GClassInfo *m_next_rt;
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Gis_class_info *m_next_rt;
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};
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GClassInfo *m_vmt;
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Gis_class_info *m_vmt;
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const GClassInfo *get_class_info() const { return m_vmt; }
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size_t get_data_size() const { return (this->*m_vmt->get_data_size)(); }
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const Gis_class_info *get_class_info() const { return m_vmt; }
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uint32 get_data_size() const { return (this->*m_vmt->get_data_size)(); }
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int init_from_wkt(GTextReadStream *trs, String *wkb)
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bool init_from_wkt(Gis_read_stream *trs, String *wkb)
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{ return (this->*m_vmt->init_from_wkt)(trs, wkb); }
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int get_data_as_wkt(String *txt) const
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{ return (this->*m_vmt->get_data_as_wkt)(txt); }
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bool get_data_as_wkt(String *txt, const char **end)
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{ return (this->*m_vmt->get_data_as_wkt)(txt, end); }
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int get_mbr(MBR *mbr) const { return (this->*m_vmt->get_mbr)(mbr); }
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int dimension(uint32 *dim) const
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{ return (this->*m_vmt->dimension)(dim); }
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int get_mbr(MBR *mbr, const char **end) const
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{ return (this->*m_vmt->get_mbr)(mbr, end); }
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bool dimension(uint32 *dim, const char **end) const
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{
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return (this->*m_vmt->dimension)(dim, end);
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}
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int get_x(double *x) const { return (this->*m_vmt->get_x)(x); }
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int get_y(double *y) const { return (this->*m_vmt->get_y)(y); }
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int length(double *len) const { return (this->*m_vmt->length)(len); }
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int area(double *ar) const { return (this->*m_vmt->area)(ar); }
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bool get_x(double *x) const { return (this->*m_vmt->get_x)(x); }
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bool get_y(double *y) const { return (this->*m_vmt->get_y)(y); }
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bool length(double *len) const { return (this->*m_vmt->length)(len); }
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bool area(double *ar, const char **end) const
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{
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return (this->*m_vmt->area)(ar, end);
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}
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int is_closed(int *closed) const
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bool is_closed(int *closed) const
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{ return (this->*m_vmt->is_closed)(closed); }
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int num_interior_ring(uint32 *n_int_rings) const
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bool num_interior_ring(uint32 *n_int_rings) const
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{ return (this->*m_vmt->num_interior_ring)(n_int_rings); }
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int num_points(uint32 *n_points) const
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bool num_points(uint32 *n_points) const
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{ return (this->*m_vmt->num_points)(n_points); }
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int num_geometries(uint32 *num) const
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bool num_geometries(uint32 *num) const
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{ return (this->*m_vmt->num_geometries)(num); }
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int start_point(String *point) const
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bool start_point(String *point)
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{ return (this->*m_vmt->start_point)(point); }
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int end_point(String *point) const
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bool end_point(String *point)
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{ return (this->*m_vmt->end_point)(point); }
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int exterior_ring(String *ring) const
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bool exterior_ring(String *ring)
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{ return (this->*m_vmt->exterior_ring)(ring); }
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int centroid(String *point) const
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bool centroid(String *point)
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{ return (this->*m_vmt->centroid)(point); }
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int point_n(uint32 num, String *result) const
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bool point_n(uint32 num, String *result) const
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{ return (this->*m_vmt->point_n)(num, result); }
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int interior_ring_n(uint32 num, String *result) const
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bool interior_ring_n(uint32 num, String *result) const
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{ return (this->*m_vmt->interior_ring_n)(num, result); }
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int geometry_n(uint32 num, String *result) const
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bool geometry_n(uint32 num, String *result) const
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{ return (this->*m_vmt->geometry_n)(num, result); }
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public:
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int create_from_wkb(const char *data, uint32 data_len);
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int create_from_wkt(GTextReadStream *trs, String *wkt, int init_stream=1);
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int create_from_wkt(Gis_read_stream *trs, String *wkt, bool init_stream=1);
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int init(int type_id)
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{
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m_vmt = find_class(type_id);
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m_vmt= find_class(type_id);
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return !m_vmt;
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}
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int new_geometry(const char *name, size_t len)
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int new_geometry(const char *name, uint32 len)
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{
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m_vmt = find_class(name, len);
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m_vmt= find_class(name, len);
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return !m_vmt;
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}
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int as_wkt(String *wkt) const
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int as_wkt(String *wkt, const char **end)
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{
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if (wkt->reserve(strlen(get_class_info()->m_name) + 2, 512))
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uint32 len= get_class_info()->m_name.length;
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if (wkt->reserve(len + 2, 512))
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return 1;
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wkt->qs_append(get_class_info()->m_name);
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wkt->qs_append(get_class_info()->m_name.str, len);
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wkt->qs_append('(');
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if (get_data_as_wkt(wkt))
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if (get_data_as_wkt(wkt, end))
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return 1;
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wkt->qs_append(')');
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return 0;
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}
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void init_from_wkb(const char *data, uint32 data_len)
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inline void init_from_wkb(const char *data, uint32 data_len)
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{
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m_data = data;
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m_data_end = data + data_len;
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m_data= data;
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m_data_end= data + data_len;
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}
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void shift_wkb_header()
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inline void shift_wkb_header()
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{
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m_data += WKB_HEADER_SIZE;
|
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m_data+= WKB_HEADER_SIZE;
|
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}
|
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int envelope(String *result) const;
|
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bool envelope(String *result) const;
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|
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protected:
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static GClassInfo *find_class(int type_id);
|
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static GClassInfo *find_class(const char *name, size_t len);
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static Gis_class_info *find_class(int type_id);
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static Gis_class_info *find_class(const char *name, uint32 len);
|
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const char *append_points(String *txt, uint32 n_points,
|
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const char *data, uint32 offset);
|
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bool create_point(String *result, const char *data);
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bool create_point(String *result, double x, double y);
|
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const char *get_mbr_for_points(MBR *mbr, const char *data, uint offset)
|
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const;
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bool no_data(const char *cur_data, uint32 data_amount) const
|
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inline bool no_data(const char *cur_data, uint32 data_amount) const
|
||||
{
|
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return (cur_data + data_amount > m_data_end);
|
||||
}
|
||||
|
||||
const char *m_data;
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const char *m_data_end;
|
||||
};
|
||||
|
||||
#define SIZEOF_STORED_DOUBLE 8
|
||||
|
||||
/***************************** Point *******************************/
|
||||
|
||||
class GPoint: public Geometry
|
||||
class Gis_point: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
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int get_data_as_wkt(String *txt) const;
|
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int get_mbr(MBR *mbr) const;
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
int get_mbr(MBR *mbr, const char **end) const;
|
||||
|
||||
int get_xy(double *x, double *y) const
|
||||
bool get_xy(double *x, double *y) const
|
||||
{
|
||||
const char *data = m_data;
|
||||
if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
|
||||
const char *data= m_data;
|
||||
if (no_data(data, SIZEOF_STORED_DOUBLE * 2))
|
||||
return 1;
|
||||
float8get(*x, data);
|
||||
float8get(*y, data + SIZEOF_STORED_DOUBLE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int get_x(double *x) const
|
||||
bool get_x(double *x) const
|
||||
{
|
||||
if (no_data(m_data, SIZEOF_STORED_DOUBLE)) return 1;
|
||||
if (no_data(m_data, SIZEOF_STORED_DOUBLE))
|
||||
return 1;
|
||||
float8get(*x, m_data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int get_y(double *y) const
|
||||
bool get_y(double *y) const
|
||||
{
|
||||
const char *data = m_data;
|
||||
const char *data= m_data;
|
||||
if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
|
||||
float8get(*y, data + SIZEOF_STORED_DOUBLE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int dimension(uint32 *dim) const { *dim = 0; return 0; }
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 0;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***************************** LineString *******************************/
|
||||
|
||||
class GLineString: public Geometry
|
||||
class Gis_line_string: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
|
||||
int length(double *len) const;
|
||||
int is_closed(int *closed) const;
|
||||
int num_points(uint32 *n_points) const;
|
||||
int start_point(String *point) const;
|
||||
int end_point(String *point) const;
|
||||
int point_n(uint32 n, String *result) const;
|
||||
int dimension(uint32 *dim) const { *dim = 1; return 0; }
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool length(double *len) const;
|
||||
bool is_closed(int *closed) const;
|
||||
bool num_points(uint32 *n_points) const;
|
||||
bool start_point(String *point);
|
||||
bool end_point(String *point);
|
||||
bool point_n(uint32 n, String *result);
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 1;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***************************** Polygon *******************************/
|
||||
|
||||
class GPolygon: public Geometry
|
||||
class Gis_polygon: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
|
||||
int area(double *ar) const;
|
||||
int exterior_ring(String *result) const;
|
||||
int num_interior_ring(uint32 *n_int_rings) const;
|
||||
int interior_ring_n(uint32 num, String *result) const;
|
||||
int centroid_xy(double *x, double *y) const;
|
||||
int centroid(String *result) const;
|
||||
int dimension(uint32 *dim) const { *dim = 2; return 0; }
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool area(double *ar, const char **end) const;
|
||||
bool exterior_ring(String *result);
|
||||
bool num_interior_ring(uint32 *n_int_rings) const;
|
||||
bool interior_ring_n(uint32 num, String *result) const;
|
||||
bool centroid_xy(double *x, double *y) const;
|
||||
bool centroid(String *result);
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 2;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***************************** MultiPoint *******************************/
|
||||
|
||||
class GMultiPoint: public Geometry
|
||||
class Gis_multi_point: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
|
||||
int num_geometries(uint32 *num) const;
|
||||
int geometry_n(uint32 num, String *result) const;
|
||||
int dimension(uint32 *dim) const { *dim = 0; return 0; }
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool num_geometries(uint32 *num) const;
|
||||
bool geometry_n(uint32 num, String *result) const;
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 0;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***************************** MultiLineString *******************************/
|
||||
|
||||
class GMultiLineString: public Geometry
|
||||
class Gis_multi_line_stringg: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
|
||||
int num_geometries(uint32 *num) const;
|
||||
int geometry_n(uint32 num, String *result) const;
|
||||
int length(double *len) const;
|
||||
int is_closed(int *closed) const;
|
||||
int dimension(uint32 *dim) const { *dim = 1; return 0; }
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool num_geometries(uint32 *num) const;
|
||||
bool geometry_n(uint32 num, String *result) const;
|
||||
bool length(double *len) const;
|
||||
bool is_closed(int *closed) const;
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 1;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/***************************** MultiPolygon *******************************/
|
||||
|
||||
class GMultiPolygon: public Geometry
|
||||
class Gis_multi_polygon: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool num_geometries(uint32 *num) const;
|
||||
bool geometry_n(uint32 num, String *result) const;
|
||||
bool area(double *ar, const char **end) const;
|
||||
bool centroid(String *result);
|
||||
bool dimension(uint32 *dim, const char **end) const
|
||||
{
|
||||
*dim= 2;
|
||||
*end= 0; /* No default end */
|
||||
return 0;
|
||||
}
|
||||
|
||||
int num_geometries(uint32 *num) const;
|
||||
int geometry_n(uint32 num, String *result) const;
|
||||
int area(double *ar) const;
|
||||
int centroid(String *result) const;
|
||||
int dimension(uint32 *dim) const { *dim = 2; return 0; }
|
||||
};
|
||||
|
||||
/***************************** GeometryCollection *******************************/
|
||||
|
||||
class GGeometryCollection: public Geometry
|
||||
/*********************** GeometryCollection *******************************/
|
||||
|
||||
class Gis_geometry_collection: public Geometry
|
||||
{
|
||||
public:
|
||||
size_t get_data_size() const;
|
||||
int init_from_wkt(GTextReadStream *trs, String *wkb);
|
||||
int get_data_as_wkt(String *txt) const;
|
||||
int get_mbr(MBR *mbr) const;
|
||||
|
||||
int num_geometries(uint32 *num) const;
|
||||
int geometry_n(uint32 num, String *result) const;
|
||||
int dimension(uint32 *dim) const;
|
||||
uint32 get_data_size() const;
|
||||
bool init_from_wkt(Gis_read_stream *trs, String *wkb);
|
||||
bool get_data_as_wkt(String *txt, const char **end);
|
||||
bool get_mbr(MBR *mbr, const char **end) const;
|
||||
bool num_geometries(uint32 *num) const;
|
||||
bool geometry_n(uint32 num, String *result) const;
|
||||
bool dimension(uint32 *dim, const char **end) const;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user