std::unique_ptr< QgsMultiPolygon > QgsGeometryFactory::fromMultiPolygonXY( const QgsMultiPolygonXY &multipoly ) { std::unique_ptr< QgsMultiPolygon > mp = qgis::make_unique< QgsMultiPolygon >(); for ( int i = 0; i < multipoly.size(); ++i ) { mp->addGeometry( fromPolygonXY( multipoly.at( i ) ).release() ); } return mp; }
void QgsMapToolOffsetCurve::prepareGeometry( const QgsPointLocator::Match &match, QgsFeature &snappedFeature ) { QgsVectorLayer *vl = match.layer(); if ( !vl ) { return; } mOriginalGeometry = QgsGeometry(); mManipulatedGeometry = QgsGeometry(); mModifiedPart = -1; mModifiedRing = -1; //assign feature part by vertex number (snap to vertex) or by before vertex number (snap to segment) QgsGeometry geom = snappedFeature.geometry(); if ( geom.isNull() ) { return; } mOriginalGeometry = geom; QgsWkbTypes::Type geomType = geom.wkbType(); if ( QgsWkbTypes::geometryType( geomType ) == QgsWkbTypes::LineGeometry ) { if ( !match.hasEdge() ) { return; } if ( !geom.isMultipart() ) { mManipulatedGeometry = geom; } else { int vertex = match.vertexIndex(); QgsVertexId vertexId; geom.vertexIdFromVertexNr( vertex, vertexId ); mModifiedPart = vertexId.part; QgsMultiPolylineXY multiLine = geom.asMultiPolyline(); mManipulatedGeometry = QgsGeometry::fromPolylineXY( multiLine.at( mModifiedPart ) ); } } else if ( QgsWkbTypes::geometryType( geomType ) == QgsWkbTypes::PolygonGeometry ) { if ( !match.hasEdge() && match.hasArea() ) { if ( !geom.isMultipart() ) { mManipulatedGeometry = geom; } else { // get the correct part QgsMultiPolygonXY mpolygon = geom.asMultiPolygon(); for ( int part = 0; part < mpolygon.count(); part++ ) // go through the polygons { const QgsPolygonXY &polygon = mpolygon[part]; QgsGeometry partGeo = QgsGeometry::fromPolygonXY( polygon ); const QgsPointXY layerCoords = match.point(); if ( partGeo.contains( &layerCoords ) ) { mModifiedPart = part; mManipulatedGeometry = partGeo; } } } } else if ( match.hasEdge() ) { int vertex = match.vertexIndex(); QgsVertexId vertexId; geom.vertexIdFromVertexNr( vertex, vertexId ); QgsDebugMsg( QStringLiteral( "%1" ).arg( vertexId.ring ) ); if ( !geom.isMultipart() ) { QgsPolygonXY poly = geom.asPolygon(); // if has rings if ( poly.count() > 0 ) { mModifiedRing = vertexId.ring; mManipulatedGeometry = QgsGeometry::fromPolygonXY( QgsPolygonXY() << poly.at( mModifiedRing ) ); } else { mManipulatedGeometry = QgsGeometry::fromPolygonXY( poly ); } } else { mModifiedPart = vertexId.part; // get part, get ring QgsMultiPolygonXY multiPoly = geom.asMultiPolygon(); // if has rings if ( multiPoly.at( mModifiedPart ).count() > 0 ) { mModifiedRing = vertexId.ring; mManipulatedGeometry = QgsGeometry::fromPolygonXY( QgsPolygonXY() << multiPoly.at( mModifiedPart ).at( mModifiedRing ) ); } else { mManipulatedGeometry = QgsGeometry::fromPolygonXY( multiPoly.at( mModifiedPart ) ); } } } } }
int QgsVectorLayerEditUtils::addTopologicalPoints( const QgsGeometry &geom ) { if ( !mLayer->isSpatial() ) return 1; if ( geom.isNull() ) { return 1; } int returnVal = 0; QgsWkbTypes::Type wkbType = geom.wkbType(); switch ( QgsWkbTypes::geometryType( wkbType ) ) { //line case QgsWkbTypes::LineGeometry: { if ( !QgsWkbTypes::isMultiType( wkbType ) ) { QgsPolylineXY line = geom.asPolyline(); QgsPolylineXY::const_iterator line_it = line.constBegin(); for ( ; line_it != line.constEnd(); ++line_it ) { if ( addTopologicalPoints( *line_it ) != 0 ) { returnVal = 2; } } } else { QgsMultiPolylineXY multiLine = geom.asMultiPolyline(); QgsPolylineXY currentPolyline; for ( int i = 0; i < multiLine.size(); ++i ) { QgsPolylineXY::const_iterator line_it = currentPolyline.constBegin(); for ( ; line_it != currentPolyline.constEnd(); ++line_it ) { if ( addTopologicalPoints( *line_it ) != 0 ) { returnVal = 2; } } } } break; } case QgsWkbTypes::PolygonGeometry: { if ( !QgsWkbTypes::isMultiType( wkbType ) ) { QgsPolygonXY polygon = geom.asPolygon(); QgsPolylineXY currentRing; for ( int i = 0; i < polygon.size(); ++i ) { currentRing = polygon.at( i ); QgsPolylineXY::const_iterator line_it = currentRing.constBegin(); for ( ; line_it != currentRing.constEnd(); ++line_it ) { if ( addTopologicalPoints( *line_it ) != 0 ) { returnVal = 2; } } } } else { QgsMultiPolygonXY multiPolygon = geom.asMultiPolygon(); QgsPolygonXY currentPolygon; QgsPolylineXY currentRing; for ( int i = 0; i < multiPolygon.size(); ++i ) { currentPolygon = multiPolygon.at( i ); for ( int j = 0; j < currentPolygon.size(); ++j ) { currentRing = currentPolygon.at( j ); QgsPolylineXY::const_iterator line_it = currentRing.constBegin(); for ( ; line_it != currentRing.constEnd(); ++line_it ) { if ( addTopologicalPoints( *line_it ) != 0 ) { returnVal = 2; } } } } } break; } case QgsWkbTypes::PointGeometry: case QgsWkbTypes::UnknownGeometry: case QgsWkbTypes::NullGeometry: break; } return returnVal; }