QGeoShape Class
The QGeoShape class defines a geographic area. More...
| Header: | #include <QGeoShape> |
| qmake: | QT += positioning |
| Since: | Qt 5.2 |
| Inherited By: |
Public Types
| enum | ShapeType { UnknownType, RectangleType, CircleType } |
Properties
Public Functions
| QGeoShape() | |
| QGeoShape(const QGeoShape &other) | |
| ~QGeoShape() | |
| QGeoCoordinate | center() const |
| bool | contains(const QGeoCoordinate &coordinate) const |
| void | extendShape(const QGeoCoordinate &coordinate) |
| bool | isEmpty() const |
| bool | isValid() const |
| QString | toString() const |
| ShapeType | type() const |
| bool | operator!=(const QGeoShape &other) const |
| QGeoShape & | operator=(const QGeoShape &other) |
| bool | operator==(const QGeoShape &other) const |
Detailed Description
The QGeoShape class defines a geographic area.
This class is the base class for classes which specify a geographic area.
For the sake of consistency, subclasses should describe the specific details of the associated areas in terms of QGeoCoordinate instances and distances in meters.
This class is a Q_GADGET since Qt 5.5. It can be directly used from C++ and QML.
Member Type Documentation
enum QGeoShape::ShapeType
Describes the type of the shape.
| Constant | Value | Description |
|---|---|---|
QGeoShape::UnknownType | 0 | A shape of unknown type. |
QGeoShape::RectangleType | 1 | A rectangular shape. |
QGeoShape::CircleType | 2 | A circular shape. |
Property Documentation
isEmpty : const bool
This property holds this property defines whether this geo shape is empty.
An empty geo shape is a region which has a geometrical area of 0.
While this property is introduced in Qt 5.5, the related accessor functions exist since the first version of this class.
This property was introduced in Qt 5.5.
Access functions:
| bool | isEmpty() const |
isValid : const bool
This property holds this property holds the validity of the geo shape.
A geo shape is considered to be invalid if some of the data that is required to unambiguously describe the geo shape has not been set or has been set to an unsuitable value depending on the subclass of this object. The default constructed objects of this type are invalid.
While this property is introduced in Qt 5.5, the related accessor functions exist since the first version of this class.
This property was introduced in Qt 5.5.
Access functions:
| bool | isValid() const |
type : const ShapeType
This property holds this property holds the type of this geo shape.
While this property is introduced in Qt 5.5, the related accessor functions exist since the first version of this class.
This property was introduced in Qt 5.5.
Access functions:
| ShapeType | type() const |
Member Function Documentation
QGeoShape::QGeoShape()
Constructs a new invalid geo shape of UnknownType.
QGeoShape::QGeoShape(const QGeoShape &other)
Constructs a new geo shape which is a copy of other.
QGeoShape::~QGeoShape()
Destroys this geo shape.
QGeoCoordinate QGeoShape::center() const
Returns the coordinate located at the geometric center of the geo shape.
This function was introduced in Qt 5.5.
bool QGeoShape::contains(const QGeoCoordinate &coordinate) const
Returns whether the coordinate coordinate is contained within this geo shape.
void QGeoShape::extendShape(const QGeoCoordinate &coordinate)
Extends the geo shape to also cover the coordinate coordinate
bool QGeoShape::isEmpty() const
Returns whether this geo shape is empty.
An empty geo shape is a region which has a geometrical area of 0.
Note: Getter function for property isEmpty.
bool QGeoShape::isValid() const
Returns whether this geo shape is valid.
Note: Getter function for property isValid.
QString QGeoShape::toString() const
Returns a string representation of this geo shape.
This function was introduced in Qt 5.5.
ShapeType QGeoShape::type() const
Returns the type of this geo shape.
Note: Getter function for property type.
bool QGeoShape::operator!=(const QGeoShape &other) const
Returns true if the other geo shape is not equivalent to this geo shape, otherwise returns false.
QGeoShape &QGeoShape::operator=(const QGeoShape &other)
Assigns other to this geo shape and returns a reference to this geo shape.
bool QGeoShape::operator==(const QGeoShape &other) const
Returns true if the other geo shape is equivalent to this geo shape, otherwise returns false.