QgsWKBTypes Class Reference

Handles storage of information regarding WKB types and their properties. More...

#include <qgswkbtypes.h>

Public Types
enum	GeometryType {   PointGeometry, LineGeometry, PolygonGeometry, UnknownGeometry,   NullGeometry }
enum	Type {   Unknown = 0, Point = 1, LineString = 2, Polygon = 3,   MultiPoint = 4, MultiLineString = 5, MultiPolygon = 6, GeometryCollection = 7,   CircularString = 8, CompoundCurve = 9, CurvePolygon = 10, MultiCurve = 11,   MultiSurface = 12, NoGeometry = 100, PointZ = 1001, LineStringZ = 1002,   PolygonZ = 1003, MultiPointZ = 1004, MultiLineStringZ = 1005, MultiPolygonZ = 1006,   GeometryCollectionZ = 1007, CircularStringZ = 1008, CompoundCurveZ = 1009, CurvePolygonZ = 1010,   MultiCurveZ = 1011, MultiSurfaceZ = 1012, PointM = 2001, LineStringM = 2002,   PolygonM = 2003, MultiPointM = 2004, MultiLineStringM = 2005, MultiPolygonM = 2006,   GeometryCollectionM = 2007, CircularStringM = 2008, CompoundCurveM = 2009, CurvePolygonM = 2010,   MultiCurveM = 2011, MultiSurfaceM = 2012, PointZM = 3001, LineStringZM = 3002,   PolygonZM = 3003, MultiPointZM = 3004, MultiLineStringZM = 3005, MultiPolygonZM = 3006,   GeometryCollectionZM = 3007, CircularStringZM = 3008, CompoundCurveZM = 3009, CurvePolygonZM = 3010,   MultiCurveZM = 3011, MultiSurfaceZM = 3012, Point25D = 0x80000001, LineString25D,   Polygon25D, MultiPoint25D, MultiLineString25D, MultiPolygon25D }

Static Public Member Functions
static Type	addM (Type type)
	Adds the m dimension to a WKB type and returns the new type. More...
static Type	addZ (Type type)
	Adds the z dimension to a WKB type and returns the new type. More...
static int	coordDimensions (Type type)
	Returns the coordinate dimension of the geometry type as an integer. More...
static QString	displayString (Type type)
	Returns a display string type for a WKB type, eg the geometry name used in WKT geometry representations. More...
static Type	dropM (Type type)
	Drops the m dimension (if present) for a WKB type and returns the new type. More...
static Type	dropZ (Type type)
	Drops the z dimension (if present) for a WKB type and returns the new type. More...
static Type	flatType (Type type)
	Returns the flat type for a WKB type. More...
static GeometryType	geometryType (Type type)
	Returns the geometry type for a WKB type, eg both MultiPolygon and CurvePolygon would have a PolygonGeometry geometry type. More...
static bool	hasM (Type type)
	Tests whether a WKB type contains m values. More...
static bool	hasZ (Type type)
	Tests whether a WKB type contains the z-dimension. More...
static bool	isCurvedType (Type type)
	Returns true if the WKB type is a curved type or can contain curved geometries. More...
static bool	isMultiType (Type type)
	Returns true if the WKB type is a multi type. More...
static bool	isSingleType (Type type)
	Returns true if the WKB type is a single type. More...
static Type	multiType (Type type)
	Returns the multi type for a WKB type. More...
static Type	parseType (const QString &wktStr)
	Attempts to extract the WKB type from a WKT string. More...
static Type	singleType (Type type)
	Returns the single type for a WKB type. More...
static Type	to25D (Type type)
	Will convert the 25D version of the flat type if supported or Unknown if not supported. More...
static int	wkbDimensions (Type type)
	Returns the inherent dimension of the geometry type as an integer. More...

Detailed Description

Handles storage of information regarding WKB types and their properties.

Note

Added in version 2.10

Definition at line 36 of file qgswkbtypes.h.

Member Enumeration Documentation

enum QgsWKBTypes::GeometryType

Enumerator
PointGeometry
LineGeometry
PolygonGeometry
UnknownGeometry
NullGeometry

Definition at line 100 of file qgswkbtypes.h.

enum QgsWKBTypes::Type

Enumerator
Unknown
Point
LineString
Polygon
MultiPoint
MultiLineString
MultiPolygon
GeometryCollection
CircularString
CompoundCurve
CurvePolygon
MultiCurve
MultiSurface
NoGeometry
PointZ
LineStringZ
PolygonZ
MultiPointZ
MultiLineStringZ
MultiPolygonZ
GeometryCollectionZ
CircularStringZ
CompoundCurveZ
CurvePolygonZ
MultiCurveZ
MultiSurfaceZ
PointM
LineStringM
PolygonM
MultiPointM
MultiLineStringM
MultiPolygonM
GeometryCollectionM
CircularStringM
CompoundCurveM
CurvePolygonM
MultiCurveM
MultiSurfaceM
PointZM
LineStringZM
PolygonZM
MultiPointZM
MultiLineStringZM
MultiPolygonZM
GeometryCollectionZM
CircularStringZM
CompoundCurveZM
CurvePolygonZM
MultiCurveZM
MultiSurfaceZM
Point25D
LineString25D
Polygon25D
MultiPoint25D
MultiLineString25D
MultiPolygon25D

Definition at line 40 of file qgswkbtypes.h.

Member Function Documentation

static Type QgsWKBTypes::addM ( Type  type )

inlinestatic

Adds the m dimension to a WKB type and returns the new type.

Parameters

type	original type

Note

added in QGIS 2.12

See also

addZ()

dropM()

hasM()

Definition at line 770 of file qgswkbtypes.h.

static Type QgsWKBTypes::addZ ( Type  type )

inlinestatic

Adds the z dimension to a WKB type and returns the new type.

Parameters

type	original type

Note

added in QGIS 2.12

See also

addM()

dropZ()

hasZ()

Definition at line 746 of file qgswkbtypes.h.

static int QgsWKBTypes::coordDimensions ( Type  type )

inlinestatic

Returns the coordinate dimension of the geometry type as an integer.

Returned value will be between 2-4, depending on whether the geometry type contains the Z or M dimensions. Invalid geometry types will return a dimension of 0.

Note

added in QGIS 2.14

See also

wkbDimensions()

Definition at line 562 of file qgswkbtypes.h.

QString QgsWKBTypes::displayString ( Type  type )

static

Returns a display string type for a WKB type, eg the geometry name used in WKT geometry representations.

Definition at line 48 of file qgswkbtypes.cpp.

static Type QgsWKBTypes::dropM ( Type  type )

inlinestatic

Drops the m dimension (if present) for a WKB type and returns the new type.

Parameters

type	original type

Note

added in QGIS 2.14

See also

dropZ()

addM()

Definition at line 817 of file qgswkbtypes.h.

static Type QgsWKBTypes::dropZ ( Type  type )

inlinestatic

Drops the z dimension (if present) for a WKB type and returns the new type.

Parameters

type	original type

Note

added in QGIS 2.14

See also

dropM()

addZ()

Definition at line 800 of file qgswkbtypes.h.

static Type QgsWKBTypes::flatType ( Type  type )

inlinestatic

Returns the flat type for a WKB type.

This is the WKB type minus any Z or M dimensions. Eg, for PolygonZM WKB types the single type would be Polygon.

See also

singleType()

multiType()

Definition at line 366 of file qgswkbtypes.h.

static GeometryType QgsWKBTypes::geometryType ( Type  type )

inlinestatic

Returns the geometry type for a WKB type, eg both MultiPolygon and CurvePolygon would have a PolygonGeometry geometry type.

Definition at line 573 of file qgswkbtypes.h.

static bool QgsWKBTypes::hasM ( Type  type )

inlinestatic

Tests whether a WKB type contains m values.

Returns

true if type has m values

See also

addM()

hasZ()

Definition at line 703 of file qgswkbtypes.h.

static bool QgsWKBTypes::hasZ ( Type  type )

inlinestatic

Tests whether a WKB type contains the z-dimension.

Returns

true if type has z values

See also

addZ()

hasM()

Definition at line 656 of file qgswkbtypes.h.

static bool QgsWKBTypes::isCurvedType ( Type  type )

inlinestatic

Returns true if the WKB type is a curved type or can contain curved geometries.

Note

added in QGIS 2.14

Definition at line 520 of file qgswkbtypes.h.

static bool QgsWKBTypes::isMultiType ( Type  type )

inlinestatic

Returns true if the WKB type is a multi type.

See also

isSingleType()

multiType()

Definition at line 476 of file qgswkbtypes.h.

static bool QgsWKBTypes::isSingleType ( Type  type )

inlinestatic

Returns true if the WKB type is a single type.

See also

isMultiType()

singleType()

Definition at line 467 of file qgswkbtypes.h.

static Type QgsWKBTypes::multiType ( Type  type )

inlinestatic

Returns the multi type for a WKB type.

Eg, for Polygon WKB types the multi type would be MultiPolygon.

See also

isMultiType()

singleType()

flatType()

Definition at line 240 of file qgswkbtypes.h.

QgsWKBTypes::Type QgsWKBTypes::parseType ( const QString &  wktStr )

static

Attempts to extract the WKB type from a WKT string.

Parameters

wktStr

a valid WKT string

Definition at line 32 of file qgswkbtypes.cpp.

static Type QgsWKBTypes::singleType ( Type  type )

inlinestatic

Returns the single type for a WKB type.

Eg, for MultiPolygon WKB types the single type would be Polygon.

See also

isSingleType()

multiType()

flatType()

Definition at line 114 of file qgswkbtypes.h.

static Type QgsWKBTypes::to25D ( Type  type )

inlinestatic

Will convert the 25D version of the flat type if supported or Unknown if not supported.

Parameters

type	The type to convert

Returns

the 25D version of the type or Unknown

Definition at line 833 of file qgswkbtypes.h.

static int QgsWKBTypes::wkbDimensions ( Type  type )

inlinestatic

Returns the inherent dimension of the geometry type as an integer.

Returned value will always be less than or equal to the coordinate dimension.

Returns

0 for point geometries, 1 for line geometries, 2 for polygon geometries Invalid geometry types will return a dimension of 0.

See also

coordDimensions()

Definition at line 542 of file qgswkbtypes.h.

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

• /tmp/buildd/qgis-2.14.0+99unstable/src/core/geometry/qgswkbtypes.h
• /tmp/buildd/qgis-2.14.0+99unstable/src/core/geometry/qgswkbtypes.cpp