detect_odd_nodes * desc This statement filters from its input the nodes that are contained in an odd number of segments and therefore obstruct the construction of areas or superways. * properties exec:yes ret_set:into control_flow:no * substatements * depending_on input = set:from:nodes,ways * changes output = union set:from set:into:nodes (set:from:nodes) * time <0.001 + 0.00001*set:from * space 0