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698 lines
22 KiB
Plaintext
698 lines
22 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsvectorfilewriter.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsVectorFileWriter : QgsFeatureSink
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{
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%Docstring
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A convenience class for writing vector files to disk.
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There are two possibilities how to use this class:
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1. static call to QgsVectorFileWriter.writeAsVectorFormat(...) which saves the whole vector layer
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2. create an instance of the class and issue calls to addFeature(...)
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%End
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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enum OptionType
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{
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Set,
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String,
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Int,
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Hidden
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};
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class Option
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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Option( const QString &docString, QgsVectorFileWriter::OptionType type );
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QString docString;
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QgsVectorFileWriter::OptionType type;
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};
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class SetOption : QgsVectorFileWriter::Option
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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SetOption( const QString &docString, const QStringList &values, const QString &defaultValue, bool allowNone = false );
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QSet<QString> values;
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QString defaultValue;
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bool allowNone;
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};
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class StringOption: QgsVectorFileWriter::Option
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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StringOption( const QString &docString, const QString &defaultValue = QString() );
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QString defaultValue;
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};
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class IntOption: QgsVectorFileWriter::Option
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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IntOption( const QString &docString, int defaultValue );
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int defaultValue;
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};
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class BoolOption : QgsVectorFileWriter::SetOption
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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BoolOption( const QString &docString, bool defaultValue );
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};
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class HiddenOption : QgsVectorFileWriter::Option
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{
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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explicit HiddenOption( const QString &value );
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QString mValue;
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};
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struct MetaData
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{
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MetaData();
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%Docstring
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Constructor for MetaData
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%End
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MetaData( const QString &longName, const QString &trLongName, const QString &glob, const QString &ext, const QMap<QString, QgsVectorFileWriter::Option *> &driverOptions, const QMap<QString, QgsVectorFileWriter::Option *> &layerOptions, const QString &compulsoryEncoding = QString() );
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QString longName;
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QString trLongName;
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QString glob;
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QString ext;
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QMap<QString, QgsVectorFileWriter::Option *> driverOptions;
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QMap<QString, QgsVectorFileWriter::Option *> layerOptions;
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QString compulsoryEncoding;
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};
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enum WriterError
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{
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NoError,
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ErrDriverNotFound,
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ErrCreateDataSource,
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ErrCreateLayer,
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ErrAttributeTypeUnsupported,
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ErrAttributeCreationFailed,
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ErrProjection,
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ErrFeatureWriteFailed,
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ErrInvalidLayer,
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Canceled,
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};
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enum SymbologyExport
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{
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NoSymbology,
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FeatureSymbology,
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SymbolLayerSymbology
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};
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enum VectorFormatOption
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{
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SortRecommended,
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SkipNonSpatialFormats,
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};
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typedef QFlags<QgsVectorFileWriter::VectorFormatOption> VectorFormatOptions;
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class FieldValueConverter
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{
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%Docstring
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Interface to convert raw field values to their user-friendly value.
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.. versionadded:: 2.16
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%End
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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FieldValueConverter();
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%Docstring
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Constructor
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%End
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virtual ~FieldValueConverter();
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virtual QgsField fieldDefinition( const QgsField &field );
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%Docstring
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Returns a possibly modified field definition. Default implementation will return provided field unmodified.
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:param field: original field definition
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:return: possibly modified field definition
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%End
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virtual QVariant convert( int fieldIdxInLayer, const QVariant &value );
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%Docstring
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Convert the provided value, for field fieldIdxInLayer. Default implementation will return provided value unmodified.
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:param fieldIdxInLayer: field index
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:param value: original raw value
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:return: possibly modified value.
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%End
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virtual QgsVectorFileWriter::FieldValueConverter *clone() const /Factory/;
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%Docstring
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Creates a clone of the FieldValueConverter.
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%End
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};
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enum EditionCapability
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{
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//! Flag to indicate that a new layer can be added to the dataset
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CanAddNewLayer,
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//! Flag to indicate that new features can be added to an existing layer
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CanAppendToExistingLayer,
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//! Flag to indicate that new fields can be added to an existing layer. Imply CanAppendToExistingLayer
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CanAddNewFieldsToExistingLayer,
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//! Flag to indicate that an existing layer can be deleted
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CanDeleteLayer
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};
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typedef QFlags<QgsVectorFileWriter::EditionCapability> EditionCapabilities;
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enum ActionOnExistingFile
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{
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//! Create or overwrite file
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CreateOrOverwriteFile,
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//! Create or overwrite layer
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CreateOrOverwriteLayer,
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//! Append features to existing layer, but do not create new fields
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AppendToLayerNoNewFields,
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//! Append features to existing layer, and create new fields if needed
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AppendToLayerAddFields
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};
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static QgsVectorFileWriter::WriterError writeAsVectorFormat( QgsVectorLayer *layer,
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const QString &fileName,
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const QString &fileEncoding,
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const QgsCoordinateReferenceSystem &destCRS = QgsCoordinateReferenceSystem(),
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const QString &driverName = "GPKG",
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bool onlySelected = false,
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QString *errorMessage /Out/ = 0,
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const QStringList &datasourceOptions = QStringList(),
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const QStringList &layerOptions = QStringList(),
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bool skipAttributeCreation = false,
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QString *newFilename = 0,
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QgsVectorFileWriter::SymbologyExport symbologyExport = QgsVectorFileWriter::NoSymbology,
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double symbologyScale = 1.0,
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const QgsRectangle *filterExtent = 0,
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QgsWkbTypes::Type overrideGeometryType = QgsWkbTypes::Unknown,
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bool forceMulti = false,
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bool includeZ = false,
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const QgsAttributeList &attributes = QgsAttributeList(),
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QgsVectorFileWriter::FieldValueConverter *fieldValueConverter = 0
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) /Deprecated/;
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%Docstring
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Write contents of vector layer to an (OGR supported) vector format
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:param layer: layer to write
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:param fileName: file name to write to
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:param fileEncoding: encoding to use
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:param destCRS: CRS to reproject exported geometries to, or invalid CRS for no reprojection
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:param driverName: OGR driver to use
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:param onlySelected: write only selected features of layer
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:param errorMessage: will be set to the error message text, if an error occurs while writing the layer
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:param datasourceOptions: list of OGR data source creation options
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:param layerOptions: list of OGR layer creation options
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:param skipAttributeCreation: only write geometries
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:param newFilename: QString pointer which will contain the new file name created (in case it is different to fileName).
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:param symbologyExport: symbology to export
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:param symbologyScale: scale of symbology
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:param filterExtent: if not ``None``, only features intersecting the extent will be saved (added in QGIS 2.4)
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:param overrideGeometryType: set to a valid geometry type to override the default geometry type for the layer. This parameter
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allows for conversion of geometryless tables to null geometries, etc (added in QGIS 2.14)
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:param forceMulti: set to ``True`` to force creation of multi* geometries (added in QGIS 2.14)
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:param includeZ: set to ``True`` to include z dimension in output. This option is only valid if overrideGeometryType is set. (added in QGIS 2.14)
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:param attributes: attributes to export (empty means all unless skipAttributeCreation is set)
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:param fieldValueConverter: field value converter (added in QGIS 2.16)
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.. deprecated::
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Use writeAsVectorFormatV2() instead.
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%End
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static QgsVectorFileWriter::WriterError writeAsVectorFormat( QgsVectorLayer *layer,
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const QString &fileName,
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const QString &fileEncoding,
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const QgsCoordinateTransform &ct,
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const QString &driverName = "GPKG",
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bool onlySelected = false,
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QString *errorMessage /Out/ = 0,
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const QStringList &datasourceOptions = QStringList(),
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const QStringList &layerOptions = QStringList(),
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bool skipAttributeCreation = false,
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QString *newFilename = 0,
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QgsVectorFileWriter::SymbologyExport symbologyExport = QgsVectorFileWriter::NoSymbology,
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double symbologyScale = 1.0,
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const QgsRectangle *filterExtent = 0,
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QgsWkbTypes::Type overrideGeometryType = QgsWkbTypes::Unknown,
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bool forceMulti = false,
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bool includeZ = false,
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const QgsAttributeList &attributes = QgsAttributeList(),
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QgsVectorFileWriter::FieldValueConverter *fieldValueConverter = 0
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) /Deprecated/;
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%Docstring
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Writes a layer out to a vector file.
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:param layer: layer to write
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:param fileName: file name to write to
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:param fileEncoding: encoding to use
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:param ct: coordinate transform to reproject exported geometries with, or invalid transform
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for no transformation
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:param driverName: OGR driver to use
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:param onlySelected: write only selected features of layer
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:param errorMessage: will be set to the error message text, if an error occurs while writing the layer
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:param datasourceOptions: list of OGR data source creation options
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:param layerOptions: list of OGR layer creation options
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:param skipAttributeCreation: only write geometries
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:param newFilename: QString pointer which will contain the new file name created (in case it is different to fileName).
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:param symbologyExport: symbology to export
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:param symbologyScale: scale of symbology
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:param filterExtent: if not ``None``, only features intersecting the extent will be saved (added in QGIS 2.4)
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:param overrideGeometryType: set to a valid geometry type to override the default geometry type for the layer. This parameter
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allows for conversion of geometryless tables to null geometries, etc (added in QGIS 2.14)
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:param forceMulti: set to ``True`` to force creation of multi* geometries (added in QGIS 2.14)
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:param includeZ: set to ``True`` to include z dimension in output. This option is only valid if overrideGeometryType is set. (added in QGIS 2.14)
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:param attributes: attributes to export (empty means all unless skipAttributeCreation is set)
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:param fieldValueConverter: field value converter (added in QGIS 2.16)
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.. versionadded:: 2.2
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.. deprecated::
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Use writeAsVectorFormatV2() instead.
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%End
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class SaveVectorOptions
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{
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%Docstring
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Options to pass to writeAsVectorFormat()
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.. versionadded:: 3.0
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%End
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%TypeHeaderCode
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#include "qgsvectorfilewriter.h"
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%End
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public:
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SaveVectorOptions();
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%Docstring
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Constructor
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%End
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virtual ~SaveVectorOptions();
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QString driverName;
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QString layerName;
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QgsVectorFileWriter::ActionOnExistingFile actionOnExistingFile;
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QString fileEncoding;
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QgsCoordinateTransform ct;
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bool onlySelectedFeatures;
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QStringList datasourceOptions;
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QStringList layerOptions;
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bool skipAttributeCreation;
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QgsAttributeList attributes;
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QgsVectorFileWriter::SymbologyExport symbologyExport;
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double symbologyScale;
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QgsRectangle filterExtent;
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QgsWkbTypes::Type overrideGeometryType;
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bool forceMulti;
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bool includeZ;
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QgsVectorFileWriter::FieldValueConverter *fieldValueConverter;
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QgsFeedback *feedback;
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};
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static QgsVectorFileWriter::WriterError writeAsVectorFormat( QgsVectorLayer *layer,
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const QString &fileName,
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const QgsVectorFileWriter::SaveVectorOptions &options,
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QString *newFilename = 0,
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QString *errorMessage /Out/ = 0
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) /Deprecated/;
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%Docstring
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Writes a layer out to a vector file.
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:param layer: source layer to write
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:param fileName: file name to write to
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:param options: options.
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:param newFilename: QString pointer which will contain the new file name created (in case it is different to fileName).
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:param errorMessage: will be set to the error message text, if an error occurs while writing the layer
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.. versionadded:: 3.0
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.. deprecated::
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Use writeAsVectorFormatV2() instead.
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%End
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QgsVectorFileWriter( const QString &vectorFileName,
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const QString &fileEncoding,
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const QgsFields &fields,
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QgsWkbTypes::Type geometryType,
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const QgsCoordinateReferenceSystem &srs = QgsCoordinateReferenceSystem(),
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const QString &driverName = "GPKG",
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const QStringList &datasourceOptions = QStringList(),
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const QStringList &layerOptions = QStringList(),
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QString *newFilename = 0,
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QgsVectorFileWriter::SymbologyExport symbologyExport = QgsVectorFileWriter::NoSymbology,
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QgsFeatureSink::SinkFlags sinkFlags = 0
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) /Deprecated/;
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static QgsVectorFileWriter *create( const QString &fileName,
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const QgsFields &fields,
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QgsWkbTypes::Type geometryType,
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const QgsCoordinateReferenceSystem &srs,
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const QgsCoordinateTransformContext &transformContext,
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const QgsVectorFileWriter::SaveVectorOptions &options,
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QgsFeatureSink::SinkFlags sinkFlags = 0,
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QString *newFilename = 0,
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QString *newLayer = 0 );
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%Docstring
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Create a new vector file writer.
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:param fileName: file name to write to
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:param fields: fields to write
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:param geometryType: geometry type of output file
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:param srs: spatial reference system of output file
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:param transformContext: coordinate transform context
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:param options: save options
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:param sinkFlags: feature sink flags
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:param newFilename: potentially modified file name (output parameter)
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:param newLayer: potentially modified layer name (output parameter)
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.. versionadded:: 3.10.3
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%End
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static QgsVectorFileWriter::WriterError writeAsVectorFormatV2( QgsVectorLayer *layer,
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const QString &fileName,
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const QgsCoordinateTransformContext &transformContext,
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const QgsVectorFileWriter::SaveVectorOptions &options,
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QString *newFilename = 0,
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QString *newLayer = 0,
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QString *errorMessage /Out/ = 0 );
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%Docstring
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Writes a layer out to a vector file.
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:param layer: source layer to write
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:param fileName: file name to write to
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:param transformContext: coordinate transform context
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:param options: save options
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:param newFilename: potentially modified file name (output parameter)
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:param newLayer: potentially modified layer name (output parameter)
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:return: - Error message code, or QgsVectorFileWriter.NoError if the write operation was successful
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- errorMessage: will be set to the error message text, if an error occurs while writing the layer
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.. versionadded:: 3.10.3
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%End
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struct FilterFormatDetails
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{
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QString driverName;
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QString filterString;
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QStringList globs;
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};
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static QList< QgsVectorFileWriter::FilterFormatDetails > supportedFiltersAndFormats( VectorFormatOptions options = SortRecommended );
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%Docstring
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Returns a list or pairs, with format filter string as first element and OGR format key as second element.
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The ``options`` argument can be used to control the sorting and filtering of
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returned formats.
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.. seealso:: :py:func:`supportedFormatExtensions`
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%End
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static QStringList supportedFormatExtensions( VectorFormatOptions options = SortRecommended );
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%Docstring
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Returns a list of file extensions for supported formats, e.g "shp", "gpkg".
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The ``options`` argument can be used to control the sorting and filtering of
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returned formats.
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.. seealso:: :py:func:`supportedFiltersAndFormats`
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.. versionadded:: 3.0
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%End
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static bool supportsFeatureStyles( const QString &driverName );
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%Docstring
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Returns ``True`` if the specified ``driverName`` supports feature styles.
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The ``driverName`` argument must be a valid GDAL driver name.
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.. versionadded:: 3.0
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%End
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struct DriverDetails
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{
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QString longName;
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QString driverName;
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};
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static QList< QgsVectorFileWriter::DriverDetails > ogrDriverList( VectorFormatOptions options = SortRecommended );
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%Docstring
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Returns the driver list that can be used for dialogs. It contains all OGR drivers
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plus some additional internal QGIS driver names to distinguish between more
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supported formats of the same OGR driver.
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The returned list consists of structs containing the driver long name (e.g. user-friendly
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display name for the format) and internal driver short name.
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The ``options`` argument can be used to control the sorting and filtering of
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returned drivers.
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%End
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static QString driverForExtension( const QString &extension );
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%Docstring
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Returns the OGR driver name for a specified file ``extension``. E.g. the
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driver name for the ".shp" extension is "ESRI Shapefile".
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If no suitable drivers are found then an empty string is returned.
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.. versionadded:: 3.0
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%End
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static QString fileFilterString( VectorFormatOptions options = SortRecommended );
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%Docstring
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Returns filter string that can be used for dialogs.
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The ``options`` argument can be used to control the sorting and filtering of
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returned drivers.
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%End
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static QString filterForDriver( const QString &driverName );
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%Docstring
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Creates a filter for an OGR driver key
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%End
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static QString convertCodecNameForEncodingOption( const QString &codecName );
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%Docstring
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Converts codec name to string passed to ENCODING layer creation option of OGR Shapefile
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%End
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QgsVectorFileWriter::WriterError hasError();
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%Docstring
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Checks whether there were any errors in constructor
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%End
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QString errorMessage();
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%Docstring
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Retrieves error message
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%End
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virtual bool addFeature( QgsFeature &feature, QgsFeatureSink::Flags flags = 0 );
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virtual bool addFeatures( QgsFeatureList &features, QgsFeatureSink::Flags flags = 0 );
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bool addFeatureWithStyle( QgsFeature &feature, QgsFeatureRenderer *renderer, QgsUnitTypes::DistanceUnit outputUnit = QgsUnitTypes::DistanceMeters );
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%Docstring
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Adds a ``feature`` to the currently opened data source, using the style from a specified ``renderer``.
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.. versionadded:: 3.0
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%End
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~QgsVectorFileWriter();
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static bool deleteShapeFile( const QString &fileName );
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%Docstring
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Delete a shapefile (and its accompanying shx / dbf / prj / qix / qpj / cpg / sbn / sbx / idm / ind)
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:param fileName: /path/to/file.shp
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:return: bool ``True`` if the file was deleted successfully
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%End
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QgsVectorFileWriter::SymbologyExport symbologyExport() const;
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void setSymbologyExport( QgsVectorFileWriter::SymbologyExport symExport );
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double symbologyScale() const;
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%Docstring
|
|
Returns the reference scale for output.
|
|
The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
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|
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.. seealso:: :py:func:`setSymbologyScale`
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.. versionadded:: 3.0
|
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%End
|
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void setSymbologyScale( double scale );
|
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%Docstring
|
|
Set reference ``scale`` for output.
|
|
The ``scale`` value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map.
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.. seealso:: :py:func:`symbologyScale`
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.. versionadded:: 3.0
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%End
|
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static bool driverMetadata( const QString &driverName, MetaData &driverMetadata );
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|
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static QStringList defaultDatasetOptions( const QString &driverName );
|
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%Docstring
|
|
Returns a list of the default dataset options for a specified driver.
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|
|
:param driverName: name of OGR driver
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.. seealso:: :py:func:`defaultLayerOptions`
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.. versionadded:: 3.0
|
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%End
|
|
|
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static QStringList defaultLayerOptions( const QString &driverName );
|
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%Docstring
|
|
Returns a list of the default layer options for a specified driver.
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:param driverName: name of OGR driver
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.. seealso:: :py:func:`defaultDatasetOptions`
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.. versionadded:: 3.0
|
|
%End
|
|
|
|
|
|
static QgsVectorFileWriter::EditionCapabilities editionCapabilities( const QString &datasetName );
|
|
%Docstring
|
|
Returns edition capabilities for an existing dataset name.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
static bool targetLayerExists( const QString &datasetName,
|
|
const QString &layerName );
|
|
%Docstring
|
|
Returns whether the target layer already exists.
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
static bool areThereNewFieldsToCreate( const QString &datasetName,
|
|
const QString &layerName,
|
|
QgsVectorLayer *layer,
|
|
const QgsAttributeList &attributes );
|
|
%Docstring
|
|
Returns whether there are among the attributes specified some that do not exist yet in the layer
|
|
|
|
.. versionadded:: 3.0
|
|
%End
|
|
|
|
protected:
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private:
|
|
QgsVectorFileWriter( const QgsVectorFileWriter &rh );
|
|
};
|
|
|
|
QFlags<QgsVectorFileWriter::EditionCapability> operator|(QgsVectorFileWriter::EditionCapability f1, QFlags<QgsVectorFileWriter::EditionCapability> f2);
|
|
|
|
QFlags<QgsVectorFileWriter::VectorFormatOption> operator|(QgsVectorFileWriter::VectorFormatOption f1, QFlags<QgsVectorFileWriter::VectorFormatOption> f2);
|
|
|
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|
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|
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/************************************************************************
|
|
* This file has been generated automatically from *
|
|
* *
|
|
* src/core/qgsvectorfilewriter.h *
|
|
* *
|
|
* Do not edit manually ! Edit header and run scripts/sipify.pl again *
|
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************************************************************************/
|