QGIS API Documentation 3.27.0-Master (f261cc1f8b)
qgsgeometryfactory.h
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1/***************************************************************************
2 qgsgeometryfactory.h
3 -----------------------
4 begin : September 2014
5 copyright : (C) 2014 by Marco Hugentobler
6 email : marco at sourcepole dot ch
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 QGSGEOMETRYFACTORY_H
19#define QGSGEOMETRYFACTORY_H
20
21#define SIP_NO_FILE
22
23#include "qgis_core.h"
24#include "qgswkbtypes.h"
25#include <QString>
26#include <memory>
27
29class QgsLineString;
30class QgsConstWkbPtr;
31class QgsRectangle;
33class QgsMultiPoint;
35class QgsPolygon;
36class QgsMultiPolygon;
37
38//compatibility with old classes
39#include "qgspointxy.h"
40typedef QVector<QgsPointXY> QgsPolylineXY;
41typedef QVector<QgsPolylineXY> QgsPolygonXY;
42typedef QVector<QgsPointXY> QgsMultiPointXY;
43typedef QVector<QgsPolylineXY> QgsMultiPolylineXY;
44typedef QVector<QgsPolygonXY> QgsMultiPolygonXY;
45
53class CORE_EXPORT QgsGeometryFactory
54{
55 public:
56
61 static std::unique_ptr< QgsAbstractGeometry > geomFromWkb( QgsConstWkbPtr &wkb );
62
66 static std::unique_ptr< QgsAbstractGeometry > geomFromWkt( const QString &text );
67
69 static std::unique_ptr< QgsAbstractGeometry > fromPointXY( const QgsPointXY &point );
71 static std::unique_ptr<QgsMultiPoint> fromMultiPointXY( const QgsMultiPointXY &multipoint );
73 static std::unique_ptr< QgsAbstractGeometry > fromPolylineXY( const QgsPolylineXY &polyline );
75 static std::unique_ptr<QgsMultiLineString> fromMultiPolylineXY( const QgsMultiPolylineXY &multiline );
77 static std::unique_ptr<QgsPolygon> fromPolygonXY( const QgsPolygonXY &polygon );
79 static std::unique_ptr<QgsMultiPolygon> fromMultiPolygonXY( const QgsMultiPolygonXY &multipoly );
81 static std::unique_ptr< QgsAbstractGeometry > geomFromWkbType( QgsWkbTypes::Type t );
82
87 static std::unique_ptr< QgsGeometryCollection > createCollectionOfType( QgsWkbTypes::Type type );
88
89 private:
90 static std::unique_ptr< QgsLineString > linestringFromPolyline( const QgsPolylineXY &polyline );
91};
92
93#endif // QGSGEOMETRYFACTORY_H
Abstract base class for all geometries.
A const WKB pointer.
Definition: qgswkbptr.h:138
Geometry collection.
Contains geometry creation routines.
Line string geometry type, with support for z-dimension and m-values.
Definition: qgslinestring.h:45
Multi line string geometry collection.
Multi point geometry collection.
Definition: qgsmultipoint.h:30
Multi polygon geometry collection.
A class to represent a 2D point.
Definition: qgspointxy.h:59
Polygon geometry type.
Definition: qgspolygon.h:34
A rectangle specified with double values.
Definition: qgsrectangle.h:42
Type
The WKB type describes the number of dimensions a geometry has.
Definition: qgswkbtypes.h:70
QVector< QgsPolylineXY > QgsPolygonXY
Polygon: first item of the list is outer ring, inner rings (if any) start from second item.
Definition: qgsgeometry.h:76
QVector< QgsPolylineXY > QgsMultiPolylineXY
A collection of QgsPolylines that share a common collection of attributes.
Definition: qgsgeometry.h:86
QVector< QgsPointXY > QgsMultiPointXY
A collection of QgsPoints that share a common collection of attributes.
Definition: qgsgeometry.h:82
QVector< QgsPointXY > QgsPolylineXY
Polyline as represented as a vector of two-dimensional points.
Definition: qgsgeometry.h:63
QVector< QgsPolygonXY > QgsMultiPolygonXY
A collection of QgsPolygons that share a common collection of attributes.
Definition: qgsgeometry.h:93
QVector< QgsPolylineXY > QgsPolygonXY
QVector< QgsPolylineXY > QgsMultiPolylineXY
QVector< QgsPointXY > QgsMultiPointXY
QVector< QgsPointXY > QgsPolylineXY
QVector< QgsPolygonXY > QgsMultiPolygonXY