Polish

Overlap/extract_component.py

@@ -34,13 +34,12 @@ else:
     # assert input_suffix in {".gt", ".graphml"}
     g = graph_tool.load_graph(sys.argv[1])
 
-g.set_directed(False)
-
 for v in g.vertices():
     if g.vp.name[v] == int(sys.argv[2]): break
 else:
     sys.exit("Node not found")
 
+g.set_directed(False)
 label = topology.label_out_component(g, v)
 g.set_vertex_filter(label)
 g.purge_vertices()

Trajectories/draw_segments.py

 #!/usr/bin/env python3
 
 """This script reads a graph of segments in graph-tool or graphml
-format and creates the corresponding Graphviz file. If the graph has
-cost values then the edges are labeled with them. If the option -t is
-given then the label of each node tells which trajectory the segment
-belongs to.
+format and creates the corresponding Graphviz file. The node label is
+the segment identifying number followed by the date index in
+parentheses. If the graph has cost values then the edges are labeled
+with them. If the option -t is given then the label of each node also
+tells which trajectory the segment belongs to.
 
 """
 

Trajectories/segments.py

@@ -43,7 +43,8 @@ t0 = t1
 
 # e_overestim is not used in this script but it is useful to save it
 # to the output graph of this script for further processing of the
-# output graph by other scripts:
+# output graph by other scripts. We assume that e_overestim.txt is in
+# the same directory as the input edgelist:
 
 g.graph_properties["e_overestim"] = g.new_graph_property("int")
 dir_edgelist = path.dirname(sys.argv[1])