const QgsGraphDirector* RoadGraphPlugin::director() const
{
QList< QgsMapLayer* > mapLayers = QgsMapLayerRegistry::instance()->mapLayersByName( mSettings->mLayerName );
if ( mapLayers.isEmpty() )
return nullptr;
QgsVectorLayer *layer = dynamic_cast< QgsVectorLayer* >( mapLayers.at( 0 ) );
if ( !layer )
return nullptr;
if ( layer->wkbType() == QgsWkbTypes::LineString
|| layer->wkbType() == QgsWkbTypes::MultiLineString )
{
SpeedUnit speedUnit = SpeedUnit::byName( mSettings->mSpeedUnitName );
QgsLineVectorLayerDirector * director =
new QgsLineVectorLayerDirector( layer,
layer->fields().lookupField( mSettings->mDirection ),
mSettings->mFirstPointToLastPointDirectionVal,
mSettings->mLastPointToFirstPointDirectionVal,
mSettings->mBothDirectionVal,
mSettings->mDefaultDirection
);
director->addProperter( new QgsDistanceArcProperter() );
director->addProperter( new RgSpeedProperter( layer->fields().lookupField( mSettings->mSpeed ),
mSettings->mDefaultSpeed, speedUnit.multipler() ) );
return director;
}
return nullptr;
}
const QgsGraphDirector* RoadGraphPlugin::director() const
{
QgsVectorLayer *layer = nullptr;
QMap< QString, QgsMapLayer* > mapLayers = QgsMapLayerRegistry::instance()->mapLayers();
QMap< QString, QgsMapLayer* >::const_iterator it;
for ( it = mapLayers.begin(); it != mapLayers.end(); ++it )
{
if ( it.value()->name() != mSettings->mLayer )
continue;
layer = dynamic_cast< QgsVectorLayer* >( it.value() );
break;
}
if ( !layer )
return nullptr;
if ( layer->wkbType() == QGis::WKBLineString
|| layer->wkbType() == QGis::WKBMultiLineString )
{
QgsVectorDataProvider *provider = layer->dataProvider();
if ( !provider )
return nullptr;
SpeedUnit speedUnit = SpeedUnit::byName( mSettings->mSpeedUnitName );
QgsLineVectorLayerDirector * director =
new QgsLineVectorLayerDirector( layer,
provider->fieldNameIndex( mSettings->mDirection ),
mSettings->mFirstPointToLastPointDirectionVal,
mSettings->mLastPointToFirstPointDirectionVal,
mSettings->mBothDirectionVal,
mSettings->mDefaultDirection
);
director->addProperter( new QgsDistanceArcProperter() );
director->addProperter( new RgSpeedProperter( provider->fieldNameIndex( mSettings->mSpeed ),
mSettings->mDefaultSpeed, speedUnit.multipler() ) );
return director;
}
return nullptr;
}