+ for( final PhylogenyNode n : nodes_to_delete ) {
+ to_be_stripped.deleteSubtree( n, true );
+ }
+ to_be_stripped.clearHashIdToNodeMap();
+ to_be_stripped.externalNodesHaveChanged();
+ return nodes_to_delete;
+ }
+
+ /**
+ * Arranges the order of childern for each node of this Phylogeny in such a
+ * way that either the branch with more children is on top (right) or on
+ * bottom (left), dependent on the value of boolean order.
+ *
+ * @param order
+ * decides in which direction to order
+ * @param pri
+ */
+ public static void orderAppearance( final PhylogenyNode n,
+ final boolean order,
+ final boolean order_ext_alphabetically,
+ final DESCENDANT_SORT_PRIORITY pri ) {
+ if ( n.isExternal() ) {
+ return;
+ }
+ else {
+ PhylogenyNode temp = null;
+ if ( ( n.getNumberOfDescendants() == 2 )
+ && ( n.getChildNode1().getNumberOfExternalNodes() != n.getChildNode2().getNumberOfExternalNodes() )
+ && ( ( n.getChildNode1().getNumberOfExternalNodes() < n.getChildNode2().getNumberOfExternalNodes() ) == order ) ) {
+ temp = n.getChildNode1();
+ n.setChild1( n.getChildNode2() );
+ n.setChild2( temp );
+ }
+ else if ( order_ext_alphabetically ) {
+ boolean all_ext = true;
+ for( final PhylogenyNode i : n.getDescendants() ) {
+ if ( !i.isExternal() ) {
+ all_ext = false;
+ break;
+ }
+ }
+ if ( all_ext ) {
+ PhylogenyMethods.sortNodeDescendents( n, pri );
+ }
+ }
+ for( int i = 0; i < n.getNumberOfDescendants(); ++i ) {
+ orderAppearance( n.getChildNode( i ), order, order_ext_alphabetically, pri );
+ }