A geocoder which uses the Google Map geocoding API to retrieve results. More...

#include <qgsgooglemapsgeocoder.h>

Inheritance diagram for QgsGoogleMapsGeocoder:

Public Member Functions
	QgsGoogleMapsGeocoder (const QString &apiKey, const QString &regionBias=QString())
	Constructor for QgsGoogleMapsGeocoder.

QString	apiKey () const
	Returns the API key which will be used when accessing the Google Maps API.

QgsFields	appendedFields () const override
	Returns a set of newly created fields which will be appended to existing features during the geocode operation.

Flags	flags () const override
	Returns the geocoder's capability flags.

QList< QgsGeocoderResult >	geocodeString (const QString &string, const QgsGeocoderContext &context, QgsFeedback *feedback=nullptr) const override
	Geocodes a string.

QgsGeocoderResult	jsonToResult (const QVariantMap &json) const
	Converts a JSON result returned from the Google Maps service to a geocoder result object.

QString	region () const
	Returns the optional region bias which will be used to prioritize results in a certain region.

QUrl	requestUrl (const QString &address, const QgsRectangle &bounds=QgsRectangle()) const
	Returns the URL generated for geocoding the specified address.

void	setApiKey (const QString &key)
	Sets the API key to use when accessing the Google Maps API.

void	setEndpoint (const QString &endpoint)
	Sets a specific API endpoint to use for requests.

void	setRegion (const QString &region)
	Sets the optional region bias which will be used to prioritize results in a certain region.

Qgis::WkbType	wkbType () const override
	Returns the WKB type of geometries returned by the geocoder.

Public Member Functions inherited from QgsGeocoderInterface
virtual	~QgsGeocoderInterface ()=default

virtual QList< QgsGeocoderResult >	geocodeFeature (const QgsFeature &feature, const QgsGeocoderContext &context, QgsFeedback *feedback=nullptr) const
	Geocodes a feature.

Additional Inherited Members
Public Types inherited from QgsGeocoderInterface
enum class	Flag { GeocodesStrings = 1 << 0 , GeocodesFeatures = 1 << 1 }
	Capability flags for the geocoder. More...

typedef QFlags< Flag >	Flags

Detailed Description

A geocoder which uses the Google Map geocoding API to retrieve results.

This geocoder utilizes the Google Maps "geocoding" API in order to geocode strings. The Google Maps service is not publicly available, and accordingly an API key must be first obtained from Google and specified when constructing this class.

Warning: The user is responsible for managing their Google Maps API key, and ensuring that the use of this geocoder does not exceed their usage limits! Excessive use of the Google Maps geocoder API can result in charges being applied to the API key holder.

Since: QGIS 3.18

Definition at line 40 of file qgsgooglemapsgeocoder.h.

Constructor & Destructor Documentation

◆ QgsGoogleMapsGeocoder()

QgsGoogleMapsGeocoder::QgsGoogleMapsGeocoder	(	const QString &	apiKey,
		const QString &	regionBias = `QString()`
	)

Constructor for QgsGoogleMapsGeocoder.

The apiKey argument must specify a valid Google Maps API key. All use of this geocoder will be associated with the specified key for Google's billing purposes!

Optionally, a regionBias can be specified to prioritize results in a certain region. The regionBias argument must be set to a two letter country code top-level domain value, e.g. "gb" for Great Britain.

Definition at line 36 of file qgsgooglemapsgeocoder.cpp.

Member Function Documentation

◆ apiKey()

QString QgsGoogleMapsGeocoder::apiKey ( ) const

Returns the API key which will be used when accessing the Google Maps API.

See also: setApiKey()

Definition at line 293 of file qgsgooglemapsgeocoder.cpp.

◆ appendedFields()

QgsFields QgsGoogleMapsGeocoder::appendedFields ( ) const

overridevirtual

Returns a set of newly created fields which will be appended to existing features during the geocode operation.

These fields will include any extra content returned by the geocoder, such as fields for accuracy of the match or correct attribute values.

Reimplemented from QgsGeocoderInterface.

Definition at line 50 of file qgsgooglemapsgeocoder.cpp.

◆ flags()

QgsGeocoderInterface::Flags QgsGoogleMapsGeocoder::flags ( ) const

overridevirtual

Returns the geocoder's capability flags.

Implements QgsGeocoderInterface.

Definition at line 45 of file qgsgooglemapsgeocoder.cpp.

◆ geocodeString()

QList< QgsGeocoderResult > QgsGoogleMapsGeocoder::geocodeString	(	const QString &	string,
		const QgsGeocoderContext &	context,
		QgsFeedback *	feedback = `nullptr`
	)		const

overridevirtual

Geocodes a string.

If implemented by the geocoder (i.e. flags() returns the QgsGeocoderInterface::Flag::GeocodesStrings flag), a list of matching results will be returned.

The optional feedback argument can be used to provider cancellation support.

Reimplemented from QgsGeocoderInterface.

Definition at line 73 of file qgsgooglemapsgeocoder.cpp.

◆ jsonToResult()

QgsGeocoderResult QgsGoogleMapsGeocoder::jsonToResult ( const QVariantMap & json ) const

Converts a JSON result returned from the Google Maps service to a geocoder result object.

Definition at line 224 of file qgsgooglemapsgeocoder.cpp.

◆ region()

QString QgsGoogleMapsGeocoder::region ( ) const

Returns the optional region bias which will be used to prioritize results in a certain region.

See also: setRegion()

Definition at line 303 of file qgsgooglemapsgeocoder.cpp.

◆ requestUrl()

QUrl QgsGoogleMapsGeocoder::requestUrl	(	const QString &	address,
		const QgsRectangle &	bounds = `QgsRectangle()`
	)		const

Returns the URL generated for geocoding the specified address.

Definition at line 160 of file qgsgooglemapsgeocoder.cpp.

◆ setApiKey()

void QgsGoogleMapsGeocoder::setApiKey ( const QString & key )

Sets the API key to use when accessing the Google Maps API.

All use of this geocoder will be associated with the specified key for Google's billing purposes!

See also: apiKey()

Definition at line 298 of file qgsgooglemapsgeocoder.cpp.

◆ setEndpoint()

void QgsGoogleMapsGeocoder::setEndpoint ( const QString & endpoint )

Sets a specific API endpoint to use for requests.

This is for internal testing purposes only.

Definition at line 288 of file qgsgooglemapsgeocoder.cpp.

◆ setRegion()

void QgsGoogleMapsGeocoder::setRegion ( const QString & region )

Sets the optional region bias which will be used to prioritize results in a certain region.

The region argument must be set to a two letter country code top-level domain value, e.g. "gb" for Great Britain.

See also: region()

Definition at line 308 of file qgsgooglemapsgeocoder.cpp.

◆ wkbType()

Qgis::WkbType QgsGoogleMapsGeocoder::wkbType ( ) const

overridevirtual

Returns the WKB type of geometries returned by the geocoder.

If this is not known in advance then QgsWkbTypes::Unknown should be returned (e.g. in the case that a geocoder may return different geometry types depending on the quality of the match).

Reimplemented from QgsGeocoderInterface.

Definition at line 68 of file qgsgooglemapsgeocoder.cpp.

The documentation for this class was generated from the following files:

/build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/geocoding/qgsgooglemapsgeocoder.h
/build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/geocoding/qgsgooglemapsgeocoder.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsGoogleMapsGeocoder()

Member Function Documentation

◆ apiKey()

◆ appendedFields()

◆ flags()

◆ geocodeString()

◆ jsonToResult()

◆ region()

◆ requestUrl()

◆ setApiKey()

◆ setEndpoint()

◆ setRegion()

◆ wkbType()