QGeoPolygon

The QGeoPolygon class defines a geographic polygon. More…

New in version 5.10.

Synopsis

Functions

• def __eq__ (other)

• def __ne__ (other)

• def addCoordinate (coordinate)

• def addHole (holePath)

• def addHole (holePath)

• def containsCoordinate (coordinate)

• def coordinateAt (index)

• def hole (index)

• def holePath (index)

• def holesCount ()

• def insertCoordinate (index, coordinate)

• def length ([indexFrom=0[, indexTo=-1]])

• def path ()

• def perimeter ()

• def removeCoordinate (coordinate)

• def removeCoordinate (index)

• def removeHole (index)

• def replaceCoordinate (index, coordinate)

• def setPath (path)

• def setPerimeter (path)

• def size ()

• def translate (degreesLatitude, degreesLongitude)

• def translated (degreesLatitude, degreesLongitude)

Detailed Description

The polygon is defined by an ordered list of QGeoCoordinates representing its perimeter.

Each two adjacent elements in this list are intended to be connected together by the shortest line segment of constant bearing passing through both elements. This type of connection can cross the date line in the longitudinal direction, but never crosses the poles.

This is relevant for the calculation of the bounding box returned by boundingGeoRectangle() for this shape, which will have the latitude of the top left corner set to the maximum latitude in the path point set. Similarly, the latitude of the bottom right corner will be the minimum latitude in the path point set.

This class is a Q_GADGET . It can be directly used from C++ and QML .

class QGeoPolygon

QGeoPolygon(other)

QGeoPolygon(other)

QGeoPolygon(path)

param path

param other

QGeoPolygon

Constructs a new, empty geo polygon.

PySide2.QtPositioning.QGeoPolygon.addCoordinate(coordinate)

Parameters

coordinate – QGeoCoordinate

Appends coordinate to the polygon.

PySide2.QtPositioning.QGeoPolygon.addHole(holePath)

Parameters

holePath –

PySide2.QtPositioning.QGeoPolygon.addHole(holePath)

Parameters

holePath – object

PySide2.QtPositioning.QGeoPolygon.containsCoordinate(coordinate)

Parameters

coordinate – QGeoCoordinate

Return type

bool

Returns true if the polygon’s perimeter contains coordinate as one of the elements.

PySide2.QtPositioning.QGeoPolygon.coordinateAt(index)

Parameters

index – int

Return type

QGeoCoordinate

Returns the coordinate at index .

PySide2.QtPositioning.QGeoPolygon.hole(index)

Parameters

index – int

Return type

Returns a QVariant containing a QVariant containing a QList < QGeoCoordinate > which represents the hole at index.

PySide2.QtPositioning.QGeoPolygon.holePath(index)

Parameters

index – int

Return type

Returns a QList < QGeoCoordinate > which represents the hole at index .

PySide2.QtPositioning.QGeoPolygon.holesCount()

Return type

int

Returns the number of holes.

PySide2.QtPositioning.QGeoPolygon.insertCoordinate(index, coordinate)

Parameters

• index – int

• coordinate – QGeoCoordinate

Inserts coordinate at the specified index .

PySide2.QtPositioning.QGeoPolygon.length([indexFrom=0[, indexTo=-1]])

Parameters

• indexFrom – int

• indexTo – int

Return type

double

Returns the length of the polygon’s perimeter, in meters, from the element indexFrom to the element indexTo . The length is intended to be the sum of the shortest distances for each pair of adjacent points.

PySide2.QtPositioning.QGeoPolygon.__ne__(other)

Parameters

other – QGeoPolygon

Return type

bool

Returns whether this geo polygon is not equal to other .

PySide2.QtPositioning.QGeoPolygon.__eq__(other)

Parameters

other – QGeoPolygon

Return type

bool

Returns whether this geo polygon is equal to other .

PySide2.QtPositioning.QGeoPolygon.path()

Return type

Returns all the elements of the polygon’s boundary.

See also

setPath()

PySide2.QtPositioning.QGeoPolygon.perimeter()

Return type

Returns all the elements of the polygon’s perimeter.

See also

setPerimeter()

PySide2.QtPositioning.QGeoPolygon.removeCoordinate(coordinate)

Parameters

coordinate – QGeoCoordinate

PySide2.QtPositioning.QGeoPolygon.removeCoordinate(index)

Parameters

index – int

Removes element at position index from the polygon.

PySide2.QtPositioning.QGeoPolygon.removeHole(index)

Parameters

index – int

Removes element at position index from the holes QList .

PySide2.QtPositioning.QGeoPolygon.replaceCoordinate(index, coordinate)

Parameters

• index – int

• coordinate – QGeoCoordinate

Replaces the path element at the specified index with coordinate .

PySide2.QtPositioning.QGeoPolygon.setPath(path)

Parameters

path –

Sets the polygon ‘s boundary from a list of coordinates.

See also

path()

PySide2.QtPositioning.QGeoPolygon.setPerimeter(path)

Parameters

path –

Sets all the elements of the polygon’s perimeter.

See also

perimeter()

PySide2.QtPositioning.QGeoPolygon.size()

Return type

int

Returns the number of elements in the polygon.

PySide2.QtPositioning.QGeoPolygon.translate(degreesLatitude, degreesLongitude)

Parameters

• degreesLatitude – double

• degreesLongitude – double

Translates this geo polygon by degreesLatitude northwards and degreesLongitude eastwards.

Negative values of degreesLatitude and degreesLongitude correspond to southward and westward translation respectively.

PySide2.QtPositioning.QGeoPolygon.translated(degreesLatitude, degreesLongitude)

Parameters

• degreesLatitude – double

• degreesLongitude – double

Return type

QGeoPolygon

Returns a copy of this geo polygon translated by degreesLatitude northwards and degreesLongitude eastwards.

Negative values of degreesLatitude and degreesLongitude correspond to southward and westward translation respectively.

See also

translate()