node_invoked_callback=node_invoked,
edge_invoked_callback=edge_invoked,
node_removed_callback=node_removed,
edge_removed_callback=edge_removed)
# Create A new Graph using Dot layout engine
qgv.new(Dot(Graph("Main_Graph"), show_subgraphs=show_subgraphs))
# Define sone graph
n1 = qgv.addNode(qgv.engine.graph, "Node1", label="N1")
n2 = qgv.addNode(qgv.engine.graph, "Node2", label="N2")
n3 = qgv.addNode(qgv.engine.graph, "Node3", label="N3")
n4 = qgv.addNode(qgv.engine.graph, "Node4", label="N4")
n5 = qgv.addNode(qgv.engine.graph, "Node5", label="N5")
n6 = qgv.addNode(qgv.engine.graph, "Node6", label="N6")
sub = qgv.addSubgraph(qgv.engine.graph,
"subgraph",
qgv.engine.graph.graph_type,
label="Subgraph")
n7 = qgv.addNode(sub, "Node7", label="N7")
n8 = qgv.addNode(sub, "Node8", label="N8")
qgv.addEdge(n1, n2, {})
qgv.addEdge(n3, n2, {})
qgv.addEdge(n2, n4, {"width": 2})
qgv.addEdge(n4, n5, {"width": 4})
qgv.addEdge(n4, n6, {"width": 5, "color": "red"})
qgv.addEdge(n3, n6, {"width": 2})
# Build the graph (the layout engine organizes where the nodes and connections are)
qgv.build()
# Save it to a file to be loaded by Graphviz if needed
qgv.save("test.gv")
fillcolor="white")
n5 = qgv.addNode(qgv.engine.graph,
"Node5",
label="N5",
shape="polygon",
fillcolor="red",
color="white")
n6 = qgv.addNode(qgv.engine.graph,
"Node6",
label="N6",
shape="triangle",
fillcolor="blue:white:red")
sub = qgv.addSubgraph(qgv.engine.graph,
"sub graph",
qgv.engine.graph.graph_type,
label="Subgraph",
fillcolor="blue:white:red")
n7 = qgv.addNode(sub, "Node7", label="N7")
n8 = qgv.addNode(sub, "Node8", label="N8")
# Adding nodes with an image as its shape
icon_path = os.path.dirname(
os.path.abspath(__file__)) + r"\icon\dbicon.png"
n9 = qgv.addNode(qgv.engine.graph, "Node9", label="N9", shape=icon_path)
qgv.addEdge(n1, n2, {})
qgv.addEdge(n3, n2, {})
qgv.addEdge(n2, n4, {"width": 2})
qgv.addEdge(n4, n5, {"width": 4})
qgv.addEdge(n4, n6, {"width": 5, "color": "red"})