Linestring_stepper Class Reference

For iterating linestrings inside multilinestring and polygon. More...

Inheritance diagram for Linestring_stepper:

Public Member Functions
	Linestring_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 linestrings inside multilinestring and polygon.

Expected multilinestring format: NUM-ls|WKB-HDR1 ls1|WKB-HDR2 ls2|.... Expected polygon format doesn't have the WKB headers, and the 1st one is exterior ring, following if any are interior rings.

In both cases, the linestrX is of linestring format, with no WKB header in its each point.

Constructor & Destructor Documentation

Linestring_stepper()

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

inline

Member Function Documentation

operator()()

const char * Linestring_stepper::operator()

(

const char *

p

)

Parsing operator.

Parameters

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

Returns

the next linestring'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