I have drawn a binary search tree using pydot with these commands
graph = pydot.Dot(graph_type='graph')
visit(n5, BFS)
graph.write_png('example1_graph.png')
Where function view traverses the tree and calls a simple routine to draw the edges:
def draw(parent_name, child_name):
# color for lines = red
edge = pydot.Edge(parent_name, child_name, color="#ff0000")
graph.add_edge(edge)
But the lines connecting the nodes are simple straight lines. Is there a way to change the simple lines into directed arrows?