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src
core
vectortile
qgsvectortilemvtdecoder.h
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/***************************************************************************
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qgsvectortilemvtdecoder.h
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--------------------------------------
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Date : March 2020
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Copyright : (C) 2020 by Martin Dobias
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Email : wonder dot sk at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSVECTORTILEMVTDECODER_H
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#define QGSVECTORTILEMVTDECODER_H
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class
QgsFeature
;
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#include "
qgsvectortilematrixset.h
"
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#include "
qgsvectortilerenderer.h
"
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#include "vector_tile.pb.h"
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#include <QMap>
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#include <QStringList>
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#define SIP_NO_FILE
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class
QgsVectorTileRawData
;
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class
CORE_EXPORT
QgsVectorTileMVTDecoder
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{
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public
:
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QgsVectorTileMVTDecoder
(
const
QgsVectorTileMatrixSet
&structure );
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~QgsVectorTileMVTDecoder
();
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bool
decode
(
const
QgsVectorTileRawData
&rawTileData );
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QStringList
layers
()
const
;
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QStringList
layerFieldNames
(
const
QString &layerName )
const
;
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QgsVectorTileFeatures
layerFeatures
(
const
QMap<QString, QgsFields> &perLayerFields,
const
QgsCoordinateTransform
&ct,
const
QSet< QString > *layerSubset =
nullptr
)
const
;
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private
:
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QMap<QString, vector_tile::Tile> tiles;
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QgsTileXYZ
mTileID;
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QgsVectorTileMatrixSet
mStructure;
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QMap<QString, QMap<QString, int>> mLayerNameToIndex;
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};
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#endif
// QGSVECTORTILEMVTDECODER_H
QgsCoordinateTransform
Handles coordinate transforms between two coordinate systems.
Definition
qgscoordinatetransform.h:63
QgsFeature
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition
qgsfeature.h:60
QgsTileXYZ
Stores coordinates of a tile in a tile matrix set.
Definition
qgstiles.h:43
QgsVectorTileMVTDecoder::~QgsVectorTileMVTDecoder
~QgsVectorTileMVTDecoder()
QgsVectorTileMVTDecoder::layerFieldNames
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().
Definition
qgsvectortilemvtdecoder.cpp:104
QgsVectorTileMVTDecoder::layers
QStringList layers() const
Returns a list of sub-layer names in a tile. It can only be called after a successful decode().
Definition
qgsvectortilemvtdecoder.cpp:85
QgsVectorTileMVTDecoder::decode
bool decode(const QgsVectorTileRawData &rawTileData)
Tries to decode raw tile data, returns true on success.
Definition
qgsvectortilemvtdecoder.cpp:43
QgsVectorTileMVTDecoder::QgsVectorTileMVTDecoder
QgsVectorTileMVTDecoder(const QgsVectorTileMatrixSet &structure)
Constructor for QgsVectorTileMVTDecoder, using the specified tile structure.
Definition
qgsvectortilemvtdecoder.cpp:37
QgsVectorTileMVTDecoder::layerFeatures
QgsVectorTileFeatures layerFeatures(const QMap< QString, QgsFields > &perLayerFields, const QgsCoordinateTransform &ct, const QSet< QString > *layerSubset=nullptr) const
Returns decoded features grouped by sub-layers.
Definition
qgsvectortilemvtdecoder.cpp:126
QgsVectorTileMatrixSet
Encapsulates properties of a vector tile matrix set, including tile origins and scaling information.
Definition
qgsvectortilematrixset.h:31
QgsVectorTileRawData
Keeps track of raw tile data from one or more sources that need to be decoded.
Definition
qgsvectortileloader.h:40
qgsvectortilematrixset.h
qgsvectortilerenderer.h
QgsVectorTileFeatures
QMap< QString, QVector< QgsFeature > > QgsVectorTileFeatures
Features of a vector tile, grouped by sub-layer names (key of the map).
Definition
qgsvectortilerenderer.h:32
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