Polygon_stepper Class Reference

For iterating polygons inside multipolygon or geometry collection. More...

Inheritance diagram for Polygon_stepper:

Public Member Functions
	Polygon_stepper (char dim, Geometry::wkbByteOrder bo, bool has_wkb_hdr)
const char *	operator() (const char *p)
	Parsing operator. More...
Public Member Functions inherited from Stepper_base
	Stepper_base (char dim, Geometry::wkbByteOrder bo, bool has_wkb_hdr, Geometry::wkbType geotype)
	Constructor. More...
Geometry::wkbByteOrder	get_current_byte_order () const
Geometry::wkbType	get_current_geotype () const

Additional Inherited Members
Protected Attributes inherited from Stepper_base
char	m_dim
	Current geometry dimension. More...
bool	m_has_wkb_hdr
	Current geometry has a WKB header or not. More...
Geometry::wkbByteOrder	m_bo
	Current geometry's byte order. More...
Geometry::wkbType	m_geotype
	Current geometry's type, e.g. polygon, linestring, etc. More...

Detailed Description

For iterating polygons inside multipolygon or geometry collection.

Expected multipolygon format: NUM-plgns|WKB-HDR1 plgn1|WKB-HDR2 plgn2|... This is also expected format for geometry collection. In both cases inside polygonX there is no more WKB headers.

Constructor & Destructor Documentation

Polygon_stepper()

Polygon_stepper::Polygon_stepper ( char  dim, Geometry::wkbByteOrder  bo, bool  has_wkb_hdr  )

inline

Member Function Documentation

operator()()

const char * Polygon_stepper::operator()

(

const char *

p

)

Parsing operator.

Parameters

p	points to the 1st byte of a polygon's wkb data, right after its wkb header if any;

Returns

the next polygon's wkb data's 1st byte pointer, skipping its wkb header if any.

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The documentation for this class was generated from the following file:

• sql/spatial.cc