QGIS API Documentation 3.29.0-Master (da8bb1db43)
qgsquickcoordinatetransformer.h
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1/***************************************************************************
2 qgsquickcoordinatetransformer.h
3 --------------------------------------
4 Date : 1.6.2017
5 Copyright : (C) 2017 by Matthias Kuhn
6 Email : matthias (at) opengis.ch
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSQUICKCOORDINATETRANSFORMER_H
17#define QGSQUICKCOORDINATETRANSFORMER_H
18
19#include <QObject>
20
21#include "qgspoint.h"
22
23#include "qgis_quick.h"
27#include "qgspoint.h"
28
40class QUICK_EXPORT QgsQuickCoordinateTransformer : public QObject
41{
42 Q_OBJECT
43
45 Q_PROPERTY( QgsPoint projectedPosition READ projectedPosition NOTIFY projectedPositionChanged )
46
47
48 Q_PROPERTY( QgsPoint sourcePosition READ sourcePosition WRITE setSourcePosition NOTIFY sourcePositionChanged )
49
50
51 Q_PROPERTY( QgsCoordinateReferenceSystem destinationCrs READ destinationCrs WRITE setDestinationCrs NOTIFY destinationCrsChanged )
52
53
54 Q_PROPERTY( QgsCoordinateReferenceSystem sourceCrs READ sourceCrs WRITE setSourceCrs NOTIFY sourceCrsChanged )
55
56
57 Q_PROPERTY( QgsCoordinateTransformContext transformContext READ transformContext WRITE setTransformContext NOTIFY transformContextChanged )
58
59 public:
61 explicit QgsQuickCoordinateTransformer( QObject *parent = nullptr );
62
64 QgsPoint projectedPosition() const;
65
67 QgsPoint sourcePosition() const;
68
70 void setSourcePosition( const QgsPoint &sourcePosition );
71
73 QgsCoordinateReferenceSystem destinationCrs() const;
74
76 void setDestinationCrs( const QgsCoordinateReferenceSystem &destinationCrs );
77
79 QgsCoordinateReferenceSystem sourceCrs() const;
80
82 void setSourceCrs( const QgsCoordinateReferenceSystem &sourceCrs );
83
85 void setTransformContext( const QgsCoordinateTransformContext &context );
86
88 QgsCoordinateTransformContext transformContext() const;
89
90 signals:
93
96
99
102
105
106 private:
107 void updatePosition();
108
109 QgsPoint mProjectedPosition;
110 QgsPoint mSourcePosition;
111 QgsCoordinateTransform mCoordinateTransform;
112};
113
114#endif // QGSQUICKCOORDINATETRANSFORMER_H
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.
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:49
Helper class for transform of coordinates (QgsPoint) to a different coordinate reference system.
void transformContextChanged()
Transformation context, can be set from QgsQuickMapSettings::transformContext()
void projectedPositionChanged()
Projected (destination) position (in destination CRS)
void sourcePositionChanged()
Source position (in source CRS)
void sourceCrsChanged()
Source CRS, default 4326.
void destinationCrsChanged()
Destination CRS.