QGIS API Documentation 3.33.0-Master (bf22a165b3)
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qgsremappingproxyfeaturesink.h
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1/***************************************************************************
2 qgsremappingproxyfeaturesink.h
3 ----------------------
4 begin : April 2020
5 copyright : (C) 2020 by Nyall Dawson
6 email : nyall dot dawson at gmail dot com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
17
18#ifndef QGSREMAPPINGPROXYFEATURESINK_H
19#define QGSREMAPPINGPROXYFEATURESINK_H
20
21#include "qgis_core.h"
22#include "qgis.h"
23#include "qgsfeaturesink.h"
24#include "qgsproperty.h"
26
39{
40 public:
41
52 QMap< QString, QgsProperty > fieldMap() const { return mFieldMap; }
53
64 void setFieldMap( const QMap< QString, QgsProperty > &map ) { mFieldMap = map; }
65
75 void addMappedField( const QString &destinationField, const QgsProperty &property ) { mFieldMap.insert( destinationField, property ); }
76
82 QgsCoordinateReferenceSystem sourceCrs() const { return mSourceCrs; }
83
89 void setSourceCrs( const QgsCoordinateReferenceSystem &source ) { mSourceCrs = source; }
90
96 QgsCoordinateReferenceSystem destinationCrs() const { return mDestinationCrs; }
97
103 void setDestinationCrs( const QgsCoordinateReferenceSystem &destination ) { mDestinationCrs = destination; }
104
110 Qgis::WkbType destinationWkbType() const { return mDestinationWkbType; }
111
117 void setDestinationWkbType( Qgis::WkbType type ) { mDestinationWkbType = type; }
118
124 QgsFields destinationFields() const { return mDestinationFields; }
125
131 void setDestinationFields( const QgsFields &fields ) { mDestinationFields = fields; }
132
138 QVariant toVariant() const;
139
145 bool loadVariant( const QVariantMap &map );
146
147 // TODO c++20 - replace with = default
148 bool operator==( const QgsRemappingSinkDefinition &other ) const;
149 bool operator!=( const QgsRemappingSinkDefinition &other ) const;
150
151 private:
152
153 QMap< QString, QgsProperty > mFieldMap;
154
156 QgsCoordinateReferenceSystem mDestinationCrs;
157
158 Qgis::WkbType mDestinationWkbType = Qgis::WkbType::Unknown;
159
160 QgsFields mDestinationFields;
161
162};
163
165
166
167
168
181{
182 public:
183
184#ifndef SIP_RUN
185
194 QgsRemappingProxyFeatureSink( const QgsRemappingSinkDefinition &mappingDefinition, QgsFeatureSink *sink, bool ownsSink = false );
195#else
196
202#endif
203
205
209 void setExpressionContext( const QgsExpressionContext &context ) const;
210
214 void setTransformContext( const QgsCoordinateTransformContext &context );
215
219 QgsFeatureList remapFeature( const QgsFeature &feature ) const;
220
221 bool addFeature( QgsFeature &feature, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override;
222 bool addFeatures( QgsFeatureList &features, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override;
223 bool addFeatures( QgsFeatureIterator &iterator, QgsFeatureSink::Flags flags = QgsFeatureSink::Flags() ) override;
224 QString lastError() const override;
225
229 QgsFeatureSink *destinationSink() { return mSink; }
230
231 private:
232
233 QgsRemappingSinkDefinition mDefinition;
234 QgsCoordinateTransform mTransform;
235 QgsFeatureSink *mSink = nullptr;
236 mutable QgsExpressionContext mContext;
237 bool mOwnsSink = false;
238};
239
240#endif // QGSREMAPPINGPROXYFEATURESINK_H
241
242
243
244
WkbType
The WKB type describes the number of dimensions a geometry has.
Definition qgis.h:155
@ Unknown
Unknown.
This class represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Class for doing transforms between two map coordinate systems.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Wrapper for iterator of features from vector data provider or vector layer.
An interface for objects which accept features via addFeature(s) methods.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:56
Container of fields for a vector layer.
Definition qgsfields.h:45
A store for object properties.
A QgsFeatureSink which proxies incoming features to a destination feature sink, after applying transf...
QgsFeatureSink * destinationSink()
Returns the destination QgsFeatureSink which the proxy will forward features to.
Defines the parameters used to remap features when creating a QgsRemappingProxyFeatureSink.
void setDestinationCrs(const QgsCoordinateReferenceSystem &destination)
Sets the destination crs used for reprojecting incoming features to the sink's destination CRS.
void setFieldMap(const QMap< QString, QgsProperty > &map)
Sets the field mapping, which defines how to map the values from incoming features to destination fie...
void setDestinationWkbType(Qgis::WkbType type)
Sets the WKB geometry type for the destination.
QMap< QString, QgsProperty > fieldMap() const
Returns the field mapping, which defines how to map the values from incoming features to destination ...
QgsCoordinateReferenceSystem sourceCrs() const
Returns the source CRS used for reprojecting incoming features to the sink's destination CRS.
void setDestinationFields(const QgsFields &fields)
Sets the fields for the destination sink.
QgsCoordinateReferenceSystem destinationCrs() const
Returns the destination CRS used for reprojecting incoming features to the sink's destination CRS.
void setSourceCrs(const QgsCoordinateReferenceSystem &source)
Sets the source crs used for reprojecting incoming features to the sink's destination CRS.
QgsFields destinationFields() const
Returns the fields for the destination sink.
void addMappedField(const QString &destinationField, const QgsProperty &property)
Adds a mapping for a destination field.
Qgis::WkbType destinationWkbType() const
Returns the WKB geometry type for the destination.
Q_DECLARE_METATYPE(QgsDatabaseQueryLogEntry)
QList< QgsFeature > QgsFeatureList
Definition qgsfeature.h:920
bool operator==(const QgsFeatureIterator &fi1, const QgsFeatureIterator &fi2)
bool operator!=(const QgsFeatureIterator &fi1, const QgsFeatureIterator &fi2)