Point_stepper Class Reference

For iterating points inside multipoint and linestring. More...

Inheritance diagram for Point_stepper:

Public Member Functions
	Point_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 points inside multipoint and linestring.

Expected multipoint format: NUM-pts|WKB-HDR1 pt1|WKB-HDR2 pt2|...|WKB-HDRn ptn Expected linestring format doesn't have the WKB headers.

Constructor & Destructor Documentation

Point_stepper()

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

inline

Member Function Documentation

operator()()

const char * Point_stepper::operator()

(

const char *

p

)

Parsing operator.

Note that the returned pointer may point past end of WKB string, and caller is responsible for stopping reading after last geometry is read, this is true for all parsing operator of all stepper classes.

Parameters

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