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. More...
	~QgsVectorTileMVTDecoder ()
bool	decode (const QgsVectorTileRawData &rawTileData)
	Tries to decode raw tile data, returns true on success. More...
QgsVectorTileFeatures	layerFeatures (const QMap< QString, QgsFields > &perLayerFields, const QgsCoordinateTransform &ct, const QSet< QString > *layerSubset=nullptr) const
	Returns decoded features grouped by sub-layers. More...
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() More...
QStringList	layers () const
	Returns a list of sub-layer names in a tile. It can only be called after a successful decode() More...

Detailed Description

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

Since

QGIS 3.14

Definition at line 39 of file qgsvectortilemvtdecoder.h.

Constructor & Destructor Documentation

QgsVectorTileMVTDecoder()

QgsVectorTileMVTDecoder::QgsVectorTileMVTDecoder

(

const QgsVectorTileMatrixSet &

structure

)

Constructor for QgsVectorTileMVTDecoder, using the specified tile structure.

Definition at line 34 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 40 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 88 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 71 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 57 of file qgsvectortilemvtdecoder.cpp.

---

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

• /build/qgis-3.37.0+git20240325+fdefdf9c27f+17bookworm/src/core/vectortile/qgsvectortilemvtdecoder.h
• /build/qgis-3.37.0+git20240325+fdefdf9c27f+17bookworm/src/core/vectortile/qgsvectortilemvtdecoder.cpp