QGIS API Documentation  3.6.0-Noosa (5873452)
qgswkbtypes.cpp
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1 /***************************************************************************
2  qgswkbtypes.cpp
3  ---------------
4  begin : January 2015
5  copyright : (C) 2015 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 #include "qgswkbtypes.h"
19 
20 /***************************************************************************
21  * This class is considered CRITICAL and any change MUST be accompanied with
22  * full unit tests.
23  * See details in QEP #17
24  ****************************************************************************/
25 
26 const QMap<QgsWkbTypes::Type, QgsWkbTypes::wkbEntry> QgsWkbTypes::ENTRIES
27 {
28  //register the known wkb types
29  { Unknown, wkbEntry( QStringLiteral( "Unknown" ), false, Unknown, Unknown, Unknown, UnknownGeometry, false, false ) },
30  { NoGeometry, wkbEntry( QStringLiteral( "NoGeometry" ), false, NoGeometry, NoGeometry, NoGeometry, NullGeometry, false, false ) },
31  //point
32  { Point, wkbEntry( QStringLiteral( "Point" ), false, MultiPoint, Point, Point, PointGeometry, false, false ) },
33  { PointZ, wkbEntry( QStringLiteral( "PointZ" ), false, MultiPointZ, PointZ, Point, PointGeometry, true, false ) },
34  { PointM, wkbEntry( QStringLiteral( "PointM" ), false, MultiPointM, PointM, Point, PointGeometry, false, true ) },
35  { PointZM, wkbEntry( QStringLiteral( "PointZM" ), false, MultiPointZM, PointZM, Point, PointGeometry, true, true ) },
36  { Point25D, wkbEntry( QStringLiteral( "Point25D" ), false, MultiPoint25D, Point25D, Point, PointGeometry, true, false ) },
37  //linestring
38  { LineString, wkbEntry( QStringLiteral( "LineString" ), false, MultiLineString, LineString, LineString, LineGeometry, false, false ) },
39  { LineStringZ, wkbEntry( QStringLiteral( "LineStringZ" ), false, MultiLineStringZ, LineStringZ, LineString, LineGeometry, true, false ) },
40  { LineStringM, wkbEntry( QStringLiteral( "LineStringM" ), false, MultiLineStringM, LineStringM, LineString, LineGeometry, false, true ) },
41  { LineStringZM, wkbEntry( QStringLiteral( "LineStringZM" ), false, MultiLineStringZM, LineStringZM, LineString, LineGeometry, true, true ) },
42  { LineString25D, wkbEntry( QStringLiteral( "LineString25D" ), false, MultiLineString25D, LineString25D, LineString, LineGeometry, true, false ) },
43  //circularstring
44  { CircularString, wkbEntry( QStringLiteral( "CircularString" ), false, MultiCurve, CircularString, CircularString, LineGeometry, false, false ) },
45  { CircularStringZ, wkbEntry( QStringLiteral( "CircularStringZ" ), false, MultiCurveZ, CircularStringZ, CircularString, LineGeometry, true, false ) },
46  { CircularStringM, wkbEntry( QStringLiteral( "CircularStringM" ), false, MultiCurveM, CircularStringM, CircularString, LineGeometry, false, true ) },
47  { CircularStringZM, wkbEntry( QStringLiteral( "CircularStringZM" ), false, MultiCurveZM, CircularStringZM, CircularString, LineGeometry, true, true ) },
48  //compoundcurve
49  { CompoundCurve, wkbEntry( QStringLiteral( "CompoundCurve" ), false, MultiCurve, CompoundCurve, CompoundCurve, LineGeometry, false, false ) },
50  { CompoundCurveZ, wkbEntry( QStringLiteral( "CompoundCurveZ" ), false, MultiCurveZ, CompoundCurveZ, CompoundCurve, LineGeometry, true, false ) },
51  { CompoundCurveM, wkbEntry( QStringLiteral( "CompoundCurveM" ), false, MultiCurveM, CompoundCurveM, CompoundCurve, LineGeometry, false, true ) },
52  { CompoundCurveZM, wkbEntry( QStringLiteral( "CompoundCurveZM" ), false, MultiCurveZM, CompoundCurveZM, CompoundCurve, LineGeometry, true, true ) },
53  //polygon
54  { Polygon, wkbEntry( QStringLiteral( "Polygon" ), false, MultiPolygon, Polygon, Polygon, PolygonGeometry, false, false ) },
55  { PolygonZ, wkbEntry( QStringLiteral( "PolygonZ" ), false, MultiPolygonZ, PolygonZ, Polygon, PolygonGeometry, true, false ) },
56  { PolygonM, wkbEntry( QStringLiteral( "PolygonM" ), false, MultiPolygonM, PolygonM, Polygon, PolygonGeometry, false, true ) },
57  { PolygonZM, wkbEntry( QStringLiteral( "PolygonZM" ), false, MultiPolygonZM, PolygonZM, Polygon, PolygonGeometry, true, true ) },
58  { Polygon25D, wkbEntry( QStringLiteral( "Polygon25D" ), false, MultiPolygon25D, Polygon25D, Polygon, PolygonGeometry, true, false ) },
59  //triangle
60  { Triangle, wkbEntry( QStringLiteral( "Triangle" ), false, Unknown, Triangle, Triangle, PolygonGeometry, false, false ) },
61  { TriangleZ, wkbEntry( QStringLiteral( "TriangleZ" ), false, Unknown, TriangleZ, Triangle, PolygonGeometry, true, false ) },
62  { TriangleM, wkbEntry( QStringLiteral( "TriangleM" ), false, Unknown, TriangleM, Triangle, PolygonGeometry, false, true ) },
63  { TriangleZM, wkbEntry( QStringLiteral( "TriangleZM" ), false, Unknown, TriangleZM, Triangle, PolygonGeometry, true, true ) },
64  //curvepolygon
65  { CurvePolygon, wkbEntry( QStringLiteral( "CurvePolygon" ), false, MultiSurface, CurvePolygon, CurvePolygon, PolygonGeometry, false, false ) },
66  { CurvePolygonZ, wkbEntry( QStringLiteral( "CurvePolygonZ" ), false, MultiSurfaceZ, CurvePolygonZ, CurvePolygon, PolygonGeometry, true, false ) },
67  { CurvePolygonM, wkbEntry( QStringLiteral( "CurvePolygonM" ), false, MultiSurfaceM, CurvePolygonM, CurvePolygon, PolygonGeometry, false, true ) },
68  { CurvePolygonZM, wkbEntry( QStringLiteral( "CurvePolygonZM" ), false, MultiSurfaceZM, CurvePolygonZM, CurvePolygon, PolygonGeometry, true, true ) },
69  //multipoint
70  { MultiPoint, wkbEntry( QStringLiteral( "MultiPoint" ), true, MultiPoint, Point, MultiPoint, PointGeometry, false, false ) },
71  { MultiPointZ, wkbEntry( QStringLiteral( "MultiPointZ" ), true, MultiPointZ, PointZ, MultiPoint, PointGeometry, true, false ) },
72  { MultiPointM, wkbEntry( QStringLiteral( "MultiPointM" ), true, MultiPointM, PointM, MultiPoint, PointGeometry, false, true ) },
73  { MultiPointZM, wkbEntry( QStringLiteral( "MultiPointZM" ), true, MultiPointZM, PointZM, MultiPoint, PointGeometry, true, true ) },
74  { MultiPoint25D, wkbEntry( QStringLiteral( "MultiPoint25D" ), true, MultiPoint25D, Point25D, MultiPoint, PointGeometry, true, false ) },
75  //multiline
76  { MultiLineString, wkbEntry( QStringLiteral( "MultiLineString" ), true, MultiLineString, LineString, MultiLineString, LineGeometry, false, false ) },
77  { MultiLineStringZ, wkbEntry( QStringLiteral( "MultiLineStringZ" ), true, MultiLineStringZ, LineStringZ, MultiLineString, LineGeometry, true, false ) },
78  { MultiLineStringM, wkbEntry( QStringLiteral( "MultiLineStringM" ), true, MultiLineStringM, LineStringM, MultiLineString, LineGeometry, false, true ) },
79  { MultiLineStringZM, wkbEntry( QStringLiteral( "MultiLineStringZM" ), true, MultiLineStringZM, LineStringZM, MultiLineString, LineGeometry, true, true ) },
80  { MultiLineString25D, wkbEntry( QStringLiteral( "MultiLineString25D" ), true, MultiLineString25D, LineString25D, MultiLineString, LineGeometry, true, false ) },
81  //multicurve
82  { MultiCurve, wkbEntry( QStringLiteral( "MultiCurve" ), true, MultiCurve, CompoundCurve, MultiCurve, LineGeometry, false, false ) },
83  { MultiCurveZ, wkbEntry( QStringLiteral( "MultiCurveZ" ), true, MultiCurveZ, CompoundCurveZ, MultiCurve, LineGeometry, true, false ) },
84  { MultiCurveM, wkbEntry( QStringLiteral( "MultiCurveM" ), true, MultiCurveM, CompoundCurveM, MultiCurve, LineGeometry, false, true ) },
85  { MultiCurveZM, wkbEntry( QStringLiteral( "MultiCurveZM" ), true, MultiCurveZM, CompoundCurveZM, MultiCurve, LineGeometry, true, true ) },
86  //multipolygon
87  { MultiPolygon, wkbEntry( QStringLiteral( "MultiPolygon" ), true, MultiPolygon, Polygon, MultiPolygon, PolygonGeometry, false, false ) },
88  { MultiPolygonZ, wkbEntry( QStringLiteral( "MultiPolygonZ" ), true, MultiPolygonZ, PolygonZ, MultiPolygon, PolygonGeometry, true, false ) },
89  { MultiPolygonM, wkbEntry( QStringLiteral( "MultiPolygonM" ), true, MultiPolygonM, PolygonM, MultiPolygon, PolygonGeometry, false, true ) },
90  { MultiPolygonZM, wkbEntry( QStringLiteral( "MultiPolygonZM" ), true, MultiPolygonZM, PolygonZM, MultiPolygon, PolygonGeometry, true, true ) },
91  { MultiPolygon25D, wkbEntry( QStringLiteral( "MultiPolygon25D" ), true, MultiPolygon25D, Polygon25D, MultiPolygon, PolygonGeometry, true, false ) },
92  //multisurface
93  { MultiSurface, wkbEntry( QStringLiteral( "MultiSurface" ), true, MultiSurface, CurvePolygon, MultiSurface, PolygonGeometry, false, false ) },
94  { MultiSurfaceZ, wkbEntry( QStringLiteral( "MultiSurfaceZ" ), true, MultiSurfaceZ, CurvePolygonZ, MultiSurface, PolygonGeometry, true, false ) },
95  { MultiSurfaceM, wkbEntry( QStringLiteral( "MultiSurfaceM" ), true, MultiSurfaceM, CurvePolygonM, MultiSurface, PolygonGeometry, false, true ) },
96  { MultiSurfaceZM, wkbEntry( QStringLiteral( "MultiSurfaceZM" ), true, MultiSurfaceZM, CurvePolygonZM, MultiSurface, PolygonGeometry, true, true ) },
97  //geometrycollection
98  { GeometryCollection, wkbEntry( QStringLiteral( "GeometryCollection" ), true, GeometryCollection, Unknown, GeometryCollection, UnknownGeometry, false, false ) },
99  { GeometryCollectionZ, wkbEntry( QStringLiteral( "GeometryCollectionZ" ), true, GeometryCollectionZ, Unknown, GeometryCollection, UnknownGeometry, true, false ) },
100  { GeometryCollectionM, wkbEntry( QStringLiteral( "GeometryCollectionM" ), true, GeometryCollectionM, Unknown, GeometryCollection, UnknownGeometry, false, true ) },
101  { GeometryCollectionZM, wkbEntry( QStringLiteral( "GeometryCollectionZM" ), true, GeometryCollectionZM, Unknown, GeometryCollection, UnknownGeometry, true, true ) },
102 };
103 
104 QgsWkbTypes::Type QgsWkbTypes::parseType( const QString &wktStr )
105 {
106  QString typestr = wktStr.left( wktStr.indexOf( '(' ) ).simplified().remove( ' ' );
107 
108  QMap<QgsWkbTypes::Type, QgsWkbTypes::wkbEntry>::const_iterator it = ENTRIES.constBegin();
109  for ( ; it != ENTRIES.constEnd(); ++it )
110  {
111  if ( it.value().mName.compare( typestr, Qt::CaseInsensitive ) == 0 )
112  {
113  return it.key();
114  }
115  }
116  return Unknown;
117 }
118 
119 QString QgsWkbTypes::displayString( Type type )
120 {
121  QMap< Type, wkbEntry >::const_iterator it = ENTRIES.constFind( type );
122  if ( it == ENTRIES.constEnd() )
123  {
124  return QString();
125  }
126  return it->mName;
127 }
128 
129 QString QgsWkbTypes::geometryDisplayString( QgsWkbTypes::GeometryType type )
130 {
131 
132  switch ( type )
133  {
134  case PointGeometry:
135  return QStringLiteral( "Point" );
136  case LineGeometry:
137  return QStringLiteral( "Line" );
138  case PolygonGeometry:
139  return QStringLiteral( "Polygon" );
140  case UnknownGeometry:
141  return QStringLiteral( "Unknown geometry" );
142  case NullGeometry:
143  return QStringLiteral( "No geometry" );
144  default:
145  return QStringLiteral( "Invalid type" );
146  }
147 
148 
149 }
150 
151 /***************************************************************************
152  * This class is considered CRITICAL and any change MUST be accompanied with
153  * full unit tests.
154  * See details in QEP #17
155  ****************************************************************************/
QgsWkbTypes::parseType
static Type parseType(const QString &wktStr)
Attempts to extract the WKB type from a WKT string.
Definition: qgswkbtypes.cpp:104
QgsWkbTypes::Type
Type
The WKB type describes the number of dimensions a geometry has.
Definition: qgswkbtypes.h:68
QgsWkbTypes::geometryDisplayString
static QString geometryDisplayString(GeometryType type)
Returns a display string for a geometry type.
Definition: qgswkbtypes.cpp:129
QgsWkbTypes::GeometryType
GeometryType
The geometry types are used to group QgsWkbTypes::Type in a coarse way.
Definition: qgswkbtypes.h:138
QgsWkbTypes::displayString
static QString displayString(Type type)
Returns a display string type for a WKB type, e.g., the geometry name used in WKT geometry representa...
Definition: qgswkbtypes.cpp:119
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