Reader for Well-Known Text (WKT) geometry format. More...

#include <WktReader.h>

Public Member Functions
	WktReader (std::istream &inputStream)
	Constructor: read WKT from input stream. More...

auto	readSRID () -> srid_t
	read an SRID, if present More...

auto	readGeometry () -> std::unique_ptr< Geometry >
	read a geometry from a string More...

auto	readGeometryType () -> GeometryType
	read geometry type More...

auto	readCoordinateType () -> CoordinateType
	read coordinate type [Z][M] More...

void	readInnerPoint (Point &point)
	Read Point content from WKT. More...

void	readInnerLineString (LineString &lineString)
	Read LineString content from WKT. More...

void	readInnerPolygon (Polygon &polygon)
	Read Polygon content from WKT. More...

void	readInnerTriangle (Triangle &triangle)
	Read Triangle content from WKT. More...

void	readInnerMultiPoint (MultiPoint &multiPoint)
	Read MultiPoint content from WKT. More...

void	readInnerMultiLineString (MultiLineString &multiLineString)
	Read MultiLineString content from WKT. More...

void	readInnerMultiPolygon (MultiPolygon &multiPolygon)
	Read MultiPolygon content from WKT. More...

void	readInnerGeometryCollection (GeometryCollection &collection)
	Read GeometryCollection content from WKT. More...

void	readInnerTriangulatedSurface (TriangulatedSurface &tin)
	Read TriangulatedSurface content from WKT. More...

void	readInnerPolyhedralSurface (PolyhedralSurface &surface)
	Read PolyhedralSurface content from WKT. More...

void	readInnerSolid (Solid &solid)
	Read Solid content from WKT. More...

void	readInnerMultiSolid (MultiSolid &multiSolid)
	Read MultiSolid content from WKT. More...

void	readInnerNURBSCurve (NURBSCurve &g)
	Read NURBSCurve content from WKT (NEW ISO FORMAT). More...

auto	readWeightsVector () -> std::vector< Kernel::FT >
	Read vector of weights from WKT format: (w1, w2, w3, ...) More...

auto	readKnotsVector () -> std::vector< Kernel::FT >
	Read vector of knots from WKT format: (k1, k2, k3, ...) More...

auto	readDegree () -> unsigned int
	Read degree value (unsigned integer) More...

auto	readPointCoordinate (Point &point) -> bool
	Read coordinate from WKT. More...

Detailed Description

Reader for Well-Known Text (WKT) geometry format.

Parses WKT strings to create SFCGAL Geometry objects. Supports all standard geometry types including Points, LineStrings, Polygons, and collections, as well as 3D and measured coordinates.

Warning: M is ignored

Todo:: take M in account?

Constructor & Destructor Documentation

SFCGAL::detail::io::WktReader::WktReader ( std::istream & inputStream )

Constructor: read WKT from input stream.

Parameters

inputStream input stream from which WKT will be read

Member Function Documentation

auto SFCGAL::detail::io::WktReader::readCoordinateType ( ) -> CoordinateType

read coordinate type [Z][M]

Returns: CoordinateType of the geometry

auto SFCGAL::detail::io::WktReader::readDegree ( ) -> unsigned int

Read degree value (unsigned integer)

Returns: NURBS curve degree

auto SFCGAL::detail::io::WktReader::readGeometry ( ) -> std::unique_ptr<Geometry>

read a geometry from a string

Returns: unique_ptr to newly created Geometry object

auto SFCGAL::detail::io::WktReader::readGeometryType ( ) -> GeometryType

read geometry type

Returns: GeometryType of the next geometry in the stream

void SFCGAL::detail::io::WktReader::readInnerGeometryCollection ( GeometryCollection & collection )

Read GeometryCollection content from WKT.

Parameters

collection GeometryCollection object to fill

void SFCGAL::detail::io::WktReader::readInnerLineString ( LineString & lineString )

Read LineString content from WKT.

ex : (1.0 2.0,1.0,6.0)

Parameters

lineString LineString object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerMultiLineString ( MultiLineString & multiLineString )

Read MultiLineString content from WKT.

Parameters

multiLineString MultiLineString object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerMultiPoint ( MultiPoint & multiPoint )

Read MultiPoint content from WKT.

ex : (0.0 1.0,5.0 6.0) or ((0.0 4.0),(5.0 6.0))

Parameters

multiPoint MultiPoint object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerMultiPolygon ( MultiPolygon & multiPolygon )

Read MultiPolygon content from WKT.

Parameters

multiPolygon MultiPolygon object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerMultiSolid ( MultiSolid & multiSolid )

Read MultiSolid content from WKT.

Parameters

multiSolid MultiSolid object to fill

void SFCGAL::detail::io::WktReader::readInnerNURBSCurve ( NURBSCurve & g )

Read NURBSCurve content from WKT (NEW ISO FORMAT).

Supports syntax:

NURBSCURVE(degree, (points))
NURBSCURVE(degree, (points), (weights))
NURBSCURVE(degree, (points), (weights), (knots))

Parameters

g	The NURBSCurve geometry to populate with parsed data.

void SFCGAL::detail::io::WktReader::readInnerPoint ( Point & point )

Read Point content from WKT.

ex : (1.0 2.0 14.0)

Parameters

point Point object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerPolygon ( Polygon & polygon )

Read Polygon content from WKT.

ex : ((30 10, 10 20, 20 40, 40 40, 30 10))

Parameters

polygon Polygon object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerPolyhedralSurface ( PolyhedralSurface & surface )

Read PolyhedralSurface content from WKT.

Parameters

surface PolyhedralSurface object to fill

void SFCGAL::detail::io::WktReader::readInnerSolid ( Solid & solid )

Read Solid content from WKT.

Parameters

solid Solid object to fill

void SFCGAL::detail::io::WktReader::readInnerTriangle ( Triangle & triangle )

Read Triangle content from WKT.

Parameters

triangle Triangle object to fill with coordinates

void SFCGAL::detail::io::WktReader::readInnerTriangulatedSurface ( TriangulatedSurface & tin )

Read TriangulatedSurface content from WKT.

Parameters

tin	TriangulatedSurface object to fill

auto SFCGAL::detail::io::WktReader::readKnotsVector ( ) -> std::vector<Kernel::FT>

Read vector of knots from WKT format: (k1, k2, k3, ...)

Returns: Vector of knot values

auto SFCGAL::detail::io::WktReader::readPointCoordinate ( Point & point ) -> bool

Read coordinate from WKT.

Todo:

ZM management

Parameters

point Point object to fill with coordinate

Returns: true if coordinate was read successfully, false otherwise

auto SFCGAL::detail::io::WktReader::readSRID ( ) -> srid_t

read an SRID, if present

Returns: SRID value

auto SFCGAL::detail::io::WktReader::readWeightsVector ( ) -> std::vector<Kernel::FT>

Read vector of weights from WKT format: (w1, w2, w3, ...)

Returns: Vector of weight values

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation