Qt 5.7 | Qt Positioning | C++ Classes | QGeoShape

Qt 5.7.1 Reference Documentation

# QGeoShape Class

The QGeoShape class defines a geographic area. More...

Header: | #include <QGeoShape>
qmake: | QT += positioning
Since: | Qt 5.2
Inherited By: | QGeoCircle and QGeoRectangle

- List of all members, including inherited members

## Public Types

enum | ShapeType { UnknownType, RectangleType, CircleType }

## Properties

- isEmpty : const bool
- isValid : const bool
- type : const ShapeType

## 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.