The geoCircle type represents a circular geographic area. 更多...
| import 语句： |
import QtPositioning
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The geoCircle type is a geoShape that represents a circular geographic area. It is a direct representation of a QGeoCircle and is defined in terms of a coordinate which specifies the center of the circle and a qreal which specifies the radius of the circle in meters.
The circle is considered invalid if the center coordinate is invalid or if the radius is less than zero.
To create a geoCircle value, use the QtPositioning.circle () 函数：
import QtPositioning Item { property geoCircle region: QtPositioning.circle(QtPositioning.coordinate(-27.5, 153.1), 1000) }
When integrating with C++, any QGeoCircle value passed into QML from C++ is automatically converted into a geoCircle value. Similarly, geoCircle values are converted to QGeoCircle values when passed from QML to C++.
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center : geoCoordinate |
This property holds the coordinate of the center of the geoCircle .
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radius : real |
This property holds the radius of the geoCircle in meters.
The default value for the radius is -1 indicating an invalid geoCircle area.
