1 /***************************************************************************
2 qgsmultilinestring.cpp
3 -------------------------------------------------------------------
4 Date : 28 Oct 2014
5 Copyright : (C) 2014 by Marco Hugentobler
6 email : marco.hugentobler at sourcepole dot com
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 #include "qgsmultilinestring.h"
17 #include "qgsapplication.h"
18 #include "qgscurve.h"
19 #include "qgscircularstring.h"
20 #include "qgscompoundcurve.h"
21 #include "qgsgeometryutils.h"
22 #include "qgslinestring.h"
23 #include "qgsmulticurve.h"
24
25 #include <nlohmann/json.hpp>
26 #include <QJsonObject>
27
QgsMultiLineString()28 QgsMultiLineString::QgsMultiLineString()
29 {
30 mWkbType = QgsWkbTypes::MultiLineString;
31 }
32
lineStringN(int index)33 QgsLineString *QgsMultiLineString::lineStringN( int index )
34 {
35 return qgsgeometry_cast< QgsLineString * >( geometryN( index ) );
36 }
37
lineStringN(int index) const38 const QgsLineString *QgsMultiLineString::lineStringN( int index ) const
39 {
40 return qgsgeometry_cast< const QgsLineString * >( geometryN( index ) );
41 }
42
geometryType() const43 QString QgsMultiLineString::geometryType() const
44 {
45 return QStringLiteral( "MultiLineString" );
46 }
47
createEmptyWithSameType() const48 QgsMultiLineString *QgsMultiLineString::createEmptyWithSameType() const
49 {
50 auto result = std::make_unique< QgsMultiLineString >();
51 result->mWkbType = mWkbType;
52 return result.release();
53 }
54
clone() const55 QgsMultiLineString *QgsMultiLineString::clone() const
56 {
57 return new QgsMultiLineString( *this );
58 }
59
clear()60 void QgsMultiLineString::clear()
61 {
62 QgsMultiCurve::clear();
63 mWkbType = QgsWkbTypes::MultiLineString;
64 }
65
fromWkt(const QString & wkt)66 bool QgsMultiLineString::fromWkt( const QString &wkt )
67 {
68 return fromCollectionWkt( wkt, QVector<QgsAbstractGeometry *>() << new QgsLineString, QStringLiteral( "LineString" ) );
69 }
70
asGml2(QDomDocument & doc,int precision,const QString & ns,const AxisOrder axisOrder) const71 QDomElement QgsMultiLineString::asGml2( QDomDocument &doc, int precision, const QString &ns, const AxisOrder axisOrder ) const
72 {
73 QDomElement elemMultiLineString = doc.createElementNS( ns, QStringLiteral( "MultiLineString" ) );
74
75 if ( isEmpty() )
76 return elemMultiLineString;
77
78 for ( const QgsAbstractGeometry *geom : mGeometries )
79 {
80 if ( const QgsLineString *lineString = qgsgeometry_cast<const QgsLineString *>( geom ) )
81 {
82 QDomElement elemLineStringMember = doc.createElementNS( ns, QStringLiteral( "lineStringMember" ) );
83 elemLineStringMember.appendChild( lineString->asGml2( doc, precision, ns, axisOrder ) );
84 elemMultiLineString.appendChild( elemLineStringMember );
85 }
86 }
87
88 return elemMultiLineString;
89 }
90
asGml3(QDomDocument & doc,int precision,const QString & ns,const QgsAbstractGeometry::AxisOrder axisOrder) const91 QDomElement QgsMultiLineString::asGml3( QDomDocument &doc, int precision, const QString &ns, const QgsAbstractGeometry::AxisOrder axisOrder ) const
92 {
93 QDomElement elemMultiCurve = doc.createElementNS( ns, QStringLiteral( "MultiCurve" ) );
94
95 if ( isEmpty() )
96 return elemMultiCurve;
97
98 for ( const QgsAbstractGeometry *geom : mGeometries )
99 {
100 if ( const QgsLineString *lineString = qgsgeometry_cast<const QgsLineString *>( geom ) )
101 {
102 QDomElement elemCurveMember = doc.createElementNS( ns, QStringLiteral( "curveMember" ) );
103 elemCurveMember.appendChild( lineString->asGml3( doc, precision, ns, axisOrder ) );
104 elemMultiCurve.appendChild( elemCurveMember );
105 }
106 }
107
108 return elemMultiCurve;
109 }
110
asJsonObject(int precision) const111 json QgsMultiLineString::asJsonObject( int precision ) const
112 {
113 json coordinates( json::array( ) );
114 for ( const QgsAbstractGeometry *geom : mGeometries )
115 {
116 if ( qgsgeometry_cast<const QgsCurve *>( geom ) )
117 {
118 const QgsLineString *lineString = static_cast<const QgsLineString *>( geom );
119 QgsPointSequence pts;
120 lineString->points( pts );
121 coordinates.push_back( QgsGeometryUtils::pointsToJson( pts, precision ) );
122 }
123 }
124 return
125 {
126 { "type", "MultiLineString" },
127 { "coordinates", coordinates }
128 };
129 }
130
addGeometry(QgsAbstractGeometry * g)131 bool QgsMultiLineString::addGeometry( QgsAbstractGeometry *g )
132 {
133 if ( !dynamic_cast<QgsLineString *>( g ) )
134 {
135 delete g;
136 return false;
137 }
138
139 if ( mGeometries.empty() )
140 {
141 setZMTypeFromSubGeometry( g, QgsWkbTypes::MultiLineString );
142 }
143 if ( is3D() && !g->is3D() )
144 g->addZValue();
145 else if ( !is3D() && g->is3D() )
146 g->dropZValue();
147 if ( isMeasure() && !g->isMeasure() )
148 g->addMValue();
149 else if ( !isMeasure() && g->isMeasure() )
150 g->dropMValue();
151 return QgsGeometryCollection::addGeometry( g ); // clazy:exclude=skipped-base-method
152 }
153
insertGeometry(QgsAbstractGeometry * g,int index)154 bool QgsMultiLineString::insertGeometry( QgsAbstractGeometry *g, int index )
155 {
156 if ( !g || QgsWkbTypes::flatType( g->wkbType() ) != QgsWkbTypes::LineString )
157 {
158 delete g;
159 return false;
160 }
161
162 return QgsMultiCurve::insertGeometry( g, index ); // clazy:exclude=skipped-base-method
163 }
164
toCurveType() const165 QgsMultiCurve *QgsMultiLineString::toCurveType() const
166 {
167 QgsMultiCurve *multiCurve = new QgsMultiCurve();
168 multiCurve->reserve( mGeometries.size() );
169 for ( int i = 0; i < mGeometries.size(); ++i )
170 {
171 multiCurve->addGeometry( mGeometries.at( i )->toCurveType() );
172 }
173 return multiCurve;
174 }
175
wktOmitChildType() const176 bool QgsMultiLineString::wktOmitChildType() const
177 {
178 return true;
179 }
180
181