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 PySide2.QtPositioning.QGeoPolygon¶
PySide2.QtPositioning.QGeoPolygon(other)
PySide2.QtPositioning.QGeoPolygon(other)
PySide2.QtPositioning.QGeoPolygon(path)
- param path:
- param other:
Constructs a new, empty geo polygon.
- PySide2.QtPositioning.QGeoPolygon.addCoordinate(coordinate)¶
- Parameters:
coordinate –
PySide2.QtPositioning.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 –
PySide2.QtPositioning.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:
Returns the coordinate at
index
.
- PySide2.QtPositioning.QGeoPolygon.hole(index)¶
- Parameters:
index – int
- Return type:
Returns a
QVariant
containing aQVariant
containing aQList
<QGeoCoordinate
> which represents the hole atindex
.
- PySide2.QtPositioning.QGeoPolygon.holePath(index)¶
- Parameters:
index – int
- Return type:
Returns a
QList
<QGeoCoordinate
> which represents the hole atindex
.
- PySide2.QtPositioning.QGeoPolygon.holesCount()¶
- Return type:
int
Returns the number of holes.
- PySide2.QtPositioning.QGeoPolygon.insertCoordinate(index, coordinate)¶
- Parameters:
index – int
coordinate –
PySide2.QtPositioning.QGeoCoordinate
Inserts
coordinate
at the specifiedindex
.
- 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 elementindexTo
. The length is intended to be the sum of the shortest distances for each pair of adjacent points.
- PySide2.QtPositioning.QGeoPolygon.__ne__(other)¶
- Parameters:
- Return type:
bool
Returns whether this geo polygon is not equal to
other
.
- PySide2.QtPositioning.QGeoPolygon.__eq__(other)¶
- Parameters:
- 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
- PySide2.QtPositioning.QGeoPolygon.perimeter()¶
- Return type:
- PySide2.QtPositioning.QGeoPolygon.removeCoordinate(coordinate)¶
- Parameters:
coordinate –
PySide2.QtPositioning.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 holesQList
.
- PySide2.QtPositioning.QGeoPolygon.replaceCoordinate(index, coordinate)¶
- Parameters:
index – int
coordinate –
PySide2.QtPositioning.QGeoCoordinate
Replaces the path element at the specified
index
withcoordinate
.
- PySide2.QtPositioning.QGeoPolygon.setPath(path)¶
- Parameters:
path –
Sets the
path
for the polygon.See also
- PySide2.QtPositioning.QGeoPolygon.setPerimeter(path)¶
- Parameters:
path –
- 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 anddegreesLongitude
eastwards.Negative values of
degreesLatitude
anddegreesLongitude
correspond to southward and westward translation respectively.
- PySide2.QtPositioning.QGeoPolygon.translated(degreesLatitude, degreesLongitude)¶
- Parameters:
degreesLatitude –
double
degreesLongitude –
double
- Return type:
Returns a copy of this geo polygon translated by
degreesLatitude
northwards anddegreesLongitude
eastwards.Negative values of
degreesLatitude
anddegreesLongitude
correspond to southward and westward translation respectively.See also
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