Class: QgsMultiLineString

class qgis.core.QgsMultiLineString

Bases: QgsMultiCurve

Multi line string geometry collection.

New in version 2.10.

QgsMultiLineString() Constructor for an empty multilinestring geometry.

QgsMultiLineString(QgsMultiLineString)

Methods

addGeometry

param g

asGml2

param doc

asGml3

param doc

calculateBoundingBox

childCount

childGeometry

childPoint

Returns point at index (for geometries without child geometries - i.e. curve / point).

clear

clearCache

clone

rtype

QgsMultiLineString

compareToSameClass

createEmptyWithSameType

rtype

QgsMultiLineString

fromCollectionWkt

Reads a collection from a WKT string.

fromWkt

param wkt

geometryType

rtype

str

hasChildGeometries

Returns whether the geometry has any child geometries (False for point / curve, True otherwise)

insertGeometry

param g

lineStringN

Returns the line string with the specified index.

setZMTypeFromSubGeometry

Updates the geometry type based on whether sub geometries contain z or m values.

sortIndex

Returns the sort index for the geometry, used in the compareTo() method to compare geometries of different types.

toCurveType

Returns the geometry converted to the more generic curve type QgsMultiCurve

wktOmitChildType

rtype

bool

addGeometry(self, g: QgsAbstractGeometry)bool
Parameters

g (QgsAbstractGeometry) –

Return type

bool

asGml2(self, doc: QDomDocument, precision: int = 17, ns: str = '', axisOrder: QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY)QDomElement
Parameters
  • doc (QDomDocument) –

  • precision (int = 17) –

  • ns (str = '') –

  • axisOrder (QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY) –

Return type

QDomElement

asGml3(self, doc: QDomDocument, precision: int = 17, ns: str = '', axisOrder: QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY)QDomElement
Parameters
  • doc (QDomDocument) –

  • precision (int = 17) –

  • ns (str = '') –

  • axisOrder (QgsAbstractGeometry.AxisOrder = QgsAbstractGeometry.AxisOrder.XY) –

Return type

QDomElement

calculateBoundingBox(self)QgsRectangle
childCount(self)int
childGeometry(self, index: int)QgsAbstractGeometry
childPoint(self, index: int)QgsPoint

Returns point at index (for geometries without child geometries - i.e. curve / point)

Note

used for vertex_iterator implementation

New in version 3.0.

clear(self)
clearCache(self)
clone(self)QgsMultiLineString
Return type

QgsMultiLineString

compareToSameClass(self, other: QgsAbstractGeometry)int
createEmptyWithSameType(self)QgsMultiLineString
Return type

QgsMultiLineString

fromCollectionWkt(self, wkt: str, subtypes: object, defaultChildWkbType: str = '')bool

Reads a collection from a WKT string.

fromWkt(self, wkt: str)bool
Parameters

wkt (str) –

Return type

bool

geometryType(self)str
Return type

str

hasChildGeometries(self)bool

Returns whether the geometry has any child geometries (False for point / curve, True otherwise)

Note

used for vertex_iterator implementation

New in version 3.0.

insertGeometry(self, g: QgsAbstractGeometry, index: int)bool
Parameters
Return type

bool

lineStringN(self, index: int)QgsLineString

Returns the line string with the specified index.

Raises

IndexError – if no line string with the specified index exists.

New in version 3.16.

Parameters

index (int) –

Return type

QgsLineString

setZMTypeFromSubGeometry(self, subggeom: QgsAbstractGeometry, baseGeomType: QgsWkbTypes.Type)

Updates the geometry type based on whether sub geometries contain z or m values.

sortIndex(self)int

Returns the sort index for the geometry, used in the compareTo() method to compare geometries of different types.

New in version 3.20.

toCurveType(self)QgsMultiCurve

Returns the geometry converted to the more generic curve type QgsMultiCurve

Return type

QgsMultiCurve

Returns

the converted geometry. Caller takes ownership

wktOmitChildType(self)bool
Return type

bool