QGIS API Documentation  3.4.15-Madeira (e83d02e274)
Signals | Public Member Functions | List of all members
QgsGml Class Reference

This class reads data from a WFS server or alternatively from a GML file. More...

#include <qgsgml.h>

Inheritance diagram for QgsGml:
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Signals

void dataProgressAndSteps (int progress, int totalSteps)
 Also emit signal with progress and totalSteps together (this is better for the status message) More...
 
void dataReadProgress (int progress)
 
void totalStepsUpdate (int totalSteps)
 

Public Member Functions

 QgsGml (const QString &typeName, const QString &geometryAttribute, const QgsFields &fields)
 
QgsCoordinateReferenceSystem crs () const
 Returns features spatial reference system. More...
 
QMap< QgsFeatureId, QgsFeature * > featuresMap () const
 Gets parsed features for given type name. More...
 
int getFeatures (const QString &uri, QgsWkbTypes::Type *wkbType, QgsRectangle *extent=nullptr, const QString &userName=QString(), const QString &password=QString(), const QString &authcfg=QString())
 Does the Http GET request to the wfs server Supports only UTF-8, UTF-16, ISO-8859-1, ISO-8859-1 XML encodings. More...
 
int getFeatures (const QByteArray &data, QgsWkbTypes::Type *wkbType, QgsRectangle *extent=nullptr)
 Read from GML data. More...
 
QMap< QgsFeatureId, QString > idsMap () const
 Gets feature ids map. More...
 

Detailed Description

This class reads data from a WFS server or alternatively from a GML file.

It uses the expat XML parser and an event based model to keep performance high. The parsing starts when the first data arrives, it does not wait until the request is finished

Definition at line 351 of file qgsgml.h.

Constructor & Destructor Documentation

QgsGml::QgsGml ( const QString &  typeName,
const QString &  geometryAttribute,
const QgsFields fields 
)

Definition at line 42 of file qgsgml.cpp.

Member Function Documentation

QgsCoordinateReferenceSystem QgsGml::crs ( ) const

Returns features spatial reference system.

Since
QGIS 2.1

Definition at line 257 of file qgsgml.cpp.

void QgsGml::dataProgressAndSteps ( int  progress,
int  totalSteps 
)
signal

Also emit signal with progress and totalSteps together (this is better for the status message)

void QgsGml::dataReadProgress ( int  progress)
signal
QMap<QgsFeatureId, QgsFeature * > QgsGml::featuresMap ( ) const
inline

Gets parsed features for given type name.

Definition at line 386 of file qgsgml.h.

int QgsGml::getFeatures ( const QString &  uri,
QgsWkbTypes::Type wkbType,
QgsRectangle extent = nullptr,
const QString &  userName = QString(),
const QString &  password = QString(),
const QString &  authcfg = QString() 
)

Does the Http GET request to the wfs server Supports only UTF-8, UTF-16, ISO-8859-1, ISO-8859-1 XML encodings.

Parameters
uriGML URL
wkbTypewkbType to retrieve
extentretrieved extents
userNameusername for authentication
passwordpassword for authentication
authcfgauthentication configuration id
Returns
0 in case of success
Note
available in Python as getFeaturesUri

Definition at line 57 of file qgsgml.cpp.

int QgsGml::getFeatures ( const QByteArray &  data,
QgsWkbTypes::Type wkbType,
QgsRectangle extent = nullptr 
)

Read from GML data.

Constructor uri param is ignored Supports only UTF-8, UTF-16, ISO-8859-1, ISO-8859-1 XML encodings.

Definition at line 173 of file qgsgml.cpp.

QMap<QgsFeatureId, QString > QgsGml::idsMap ( ) const
inline

Gets feature ids map.

Definition at line 389 of file qgsgml.h.

void QgsGml::totalStepsUpdate ( int  totalSteps)
signal

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