bool QgsGeometryCollection::fromCollectionWkt( const QString &wkt, const QVector<QgsAbstractGeometry *> &subtypes, const QString &defaultChildWkbType )
{
clear();
QPair<QgsWkbTypes::Type, QString> parts = QgsGeometryUtils::wktReadBlock( wkt );
if ( QgsWkbTypes::flatType( parts.first ) != QgsWkbTypes::flatType( wkbType() ) )
{
qDeleteAll( subtypes );
return false;
}
mWkbType = parts.first;
QString defChildWkbType = QStringLiteral( "%1%2%3 " ).arg( defaultChildWkbType, is3D() ? QStringLiteral( "Z" ) : QString(), isMeasure() ? QStringLiteral( "M" ) : QString() );
const QStringList blocks = QgsGeometryUtils::wktGetChildBlocks( parts.second, defChildWkbType );
for ( const QString &childWkt : blocks )
{
QPair<QgsWkbTypes::Type, QString> childParts = QgsGeometryUtils::wktReadBlock( childWkt );
bool success = false;
for ( const QgsAbstractGeometry *geom : subtypes )
{
if ( QgsWkbTypes::flatType( childParts.first ) == QgsWkbTypes::flatType( geom->wkbType() ) )
{
mGeometries.append( geom->clone() );
if ( mGeometries.back()->fromWkt( childWkt ) )
{
success = true;
break;
}
}
}
if ( !success )
{
clear();
qDeleteAll( subtypes );
return false;
}
}
qDeleteAll( subtypes );
//scan through geometries and check if dimensionality of geometries is different to collection.
//if so, update the type dimensionality of the collection to match
bool hasZ = false;
bool hasM = false;
for ( QgsAbstractGeometry *geom : qgis::as_const( mGeometries ) )
{
hasZ = hasZ || geom->is3D();
hasM = hasM || geom->isMeasure();
if ( hasZ && hasM )
break;
}
if ( hasZ )
addZValue( 0 );
if ( hasM )
addMValue( 0 );
return true;
}
bool QgsTriangle::fromWkt( const QString &wkt )
{
clear();
QPair<QgsWkbTypes::Type, QString> parts = QgsGeometryUtils::wktReadBlock( wkt );
if ( QgsWkbTypes::geometryType( parts.first ) != QgsWkbTypes::PolygonGeometry )
return false;
mWkbType = parts.first;
QString defaultChildWkbType = QStringLiteral( "LineString%1%2" ).arg( is3D() ? QStringLiteral( "Z" ) : QString(), isMeasure() ? QStringLiteral( "M" ) : QString() );
const QStringList blocks = QgsGeometryUtils::wktGetChildBlocks( parts.second, defaultChildWkbType );
for ( const QString &childWkt : blocks )
{
QPair<QgsWkbTypes::Type, QString> childParts = QgsGeometryUtils::wktReadBlock( childWkt );
QgsWkbTypes::Type flatCurveType = QgsWkbTypes::flatType( childParts.first );
if ( flatCurveType == QgsWkbTypes::LineString )
mInteriorRings.append( new QgsLineString() );
else
{
clear();
return false;
}
if ( !mInteriorRings.back()->fromWkt( childWkt ) )
{
clear();
return false;
}
}
if ( mInteriorRings.isEmpty() )
{
clear();
return false;
}
mExteriorRing.reset( mInteriorRings.takeFirst() );
//scan through rings and check if dimensionality of rings is different to CurvePolygon.
//if so, update the type dimensionality of the CurvePolygon to match
bool hasZ = false;
bool hasM = false;
if ( mExteriorRing )
{
hasZ = hasZ || mExteriorRing->is3D();
hasM = hasM || mExteriorRing->isMeasure();
}
if ( hasZ )
addZValue( 0 );
if ( hasM )
addMValue( 0 );
return true;
}
bool QgsCompoundCurve::fromWkt( const QString &wkt )
{
clear();
QPair<QgsWkbTypes::Type, QString> parts = QgsGeometryUtils::wktReadBlock( wkt );
if ( QgsWkbTypes::flatType( parts.first ) != QgsWkbTypes::CompoundCurve )
return false;
mWkbType = parts.first;
QString defaultChildWkbType = QStringLiteral( "LineString%1%2" ).arg( is3D() ? QStringLiteral( "Z" ) : QString(), isMeasure() ? QStringLiteral( "M" ) : QString() );
const QStringList blocks = QgsGeometryUtils::wktGetChildBlocks( parts.second, defaultChildWkbType );
for ( const QString &childWkt : blocks )
{
QPair<QgsWkbTypes::Type, QString> childParts = QgsGeometryUtils::wktReadBlock( childWkt );
if ( QgsWkbTypes::flatType( childParts.first ) == QgsWkbTypes::LineString )
mCurves.append( new QgsLineString() );
else if ( QgsWkbTypes::flatType( childParts.first ) == QgsWkbTypes::CircularString )
mCurves.append( new QgsCircularString() );
else
{
clear();
return false;
}
if ( !mCurves.back()->fromWkt( childWkt ) )
{
clear();
return false;
}
}
//scan through curves and check if dimensionality of curves is different to compound curve.
//if so, update the type dimensionality of the compound curve to match
bool hasZ = false;
bool hasM = false;
for ( const QgsCurve *curve : qgis::as_const( mCurves ) )
{
hasZ = hasZ || curve->is3D();
hasM = hasM || curve->isMeasure();
if ( hasZ && hasM )
break;
}
if ( hasZ )
addZValue( 0 );
if ( hasM )
addMValue( 0 );
return true;
}
