def add_node(self, event):
if self.state == DRAW:
i = self.draw_circle(event.x, event.y, 20)
self.nodes[i] = new_node()
if not self.selected:
self.selected = i
self.redraw()
def load_file(self, f):
connections, nodes, coords = eval(open(f, "r").read())
self.connections, self.nodes = connections, {}
for k in nodes.keys():
x = (coords[k][0] + coords[k][2]) / 2
y = (coords[k][1] + coords[k][3]) / 2
i = self.draw_circle(x, y, 20)
self.nodes[i] = new_node()
self.nodes[i]['weight'] = nodes[k]['weight']
for k in connections.keys():
self.draw_line(k[0], k[1])
self.redraw()
