QgsVectorTileMVTDecoder Class Reference

This class is responsible for decoding raw tile data written with Mapbox Vector Tiles encoding. More...

#include <qgsvectortilemvtdecoder.h>

Public Member Functions
	QgsVectorTileMVTDecoder (const QgsVectorTileMatrixSet &structure)
	Constructor for QgsVectorTileMVTDecoder, using the specified tile structure.
	~QgsVectorTileMVTDecoder ()
bool	decode (const QgsVectorTileRawData &rawTileData)
	Tries to decode raw tile data, returns true on success.
QgsVectorTileFeatures	layerFeatures (const QMap< QString, QgsFields > &perLayerFields, const QgsCoordinateTransform &ct, const QSet< QString > *layerSubset=nullptr) const
	Returns decoded features grouped by sub-layers.
QStringList	layerFieldNames (const QString &layerName) const
	Returns a list of all field names in a tile. It can only be called after a successful decode()
QStringList	layers () const
	Returns a list of sub-layer names in a tile. It can only be called after a successful decode()

Detailed Description

This class is responsible for decoding raw tile data written with Mapbox Vector Tiles encoding.

Since

QGIS 3.14

Definition at line 40 of file qgsvectortilemvtdecoder.h.

Constructor & Destructor Documentation

QgsVectorTileMVTDecoder()

QgsVectorTileMVTDecoder::QgsVectorTileMVTDecoder

(

const QgsVectorTileMatrixSet &

structure

)

Constructor for QgsVectorTileMVTDecoder, using the specified tile structure.

Definition at line 35 of file qgsvectortilemvtdecoder.cpp.

~QgsVectorTileMVTDecoder()

QgsVectorTileMVTDecoder::~QgsVectorTileMVTDecoder ( )

default

Member Function Documentation

decode()

bool QgsVectorTileMVTDecoder::decode

(

const QgsVectorTileRawData &

rawTileData

)

Tries to decode raw tile data, returns true on success.

Definition at line 41 of file qgsvectortilemvtdecoder.cpp.

layerFeatures()

QgsVectorTileFeatures QgsVectorTileMVTDecoder::layerFeatures	(	const QMap< QString, QgsFields > &	perLayerFields,
		const QgsCoordinateTransform &	ct,
		const QSet< QString > *	layerSubset = nullptr
	)		const

Returns decoded features grouped by sub-layers.

It can only be called after a successful decode()

If layerSubset is specified then only features from the specified layers will be returned.

Definition at line 111 of file qgsvectortilemvtdecoder.cpp.

layerFieldNames()

QStringList QgsVectorTileMVTDecoder::layerFieldNames

(

const QString &

layerName

)

const

Returns a list of all field names in a tile. It can only be called after a successful decode()

Definition at line 89 of file qgsvectortilemvtdecoder.cpp.

layers()

QStringList QgsVectorTileMVTDecoder::layers

(

)

const

Returns a list of sub-layer names in a tile. It can only be called after a successful decode()

Definition at line 70 of file qgsvectortilemvtdecoder.cpp.

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

• /build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/vectortile/qgsvectortilemvtdecoder.h
• /build/qgis-3.41.0+git20241214+cea29feecf2+99sid/src/core/vectortile/qgsvectortilemvtdecoder.cpp