A tutorial for gephistreamer

gephistreamer_tutorial.py

# coding: utf-8
# # Basic import
from gephistreamer import graph
from gephistreamer import streamer


# # Creating a streamer
# We use a websocket to connect the client to the server. 
# The websocket defaults are localhost:8080 and workspace1. The server should be running in a Workspace with the name, "helix". So, make sure you change the workspace name according to your needs. 
# Everything that is done here in Python can also be acheived through curl commands, but that is a bit slower. 
stream = streamer.Streamer(streamer.GephiWS(hostname="localhost", port=8080, workspace="helix"))


# # Create a node with some custom properties and add it to the graph
node0 = graph.Node("0",size=50)
node0.color_hex(255, 0, 0)
stream.add_node(node0)

node1 = graph.Node("1",size=50)
node1.color_hex(0, 255, 0)
stream.add_node(node1)


# # Add a directed edge between the two nodes
edge_01 = graph.Edge(node0, node1, directed=True)
stream.add_edge(edge_01)


# # Update properties
# If a node already exists, then we can update its properties:
node0 = graph.Node("1",size=50)
node0.color_hex(0, 0, 255)
stream.change_node(node0)


# However, if a node already exists, then we can't update properties by attempting to add it again with different properties:
node0 = graph.Node("1",size=50)
node0.color_hex(0, 255, 0)
stream.add_node(node0)


# If you have a list of nodes, you can add them all in one go:
node_list = [graph.Node(str(i),size=50) for i in range(3, 100)]
stream.add_node(*node_list)


# This works for other methods as well:
node_list = [graph.Node(str(i), red=0, green=1, blue=0, size=50) for i in range(3, 100)]
stream.change_node(*node_list)


node_list = [graph.Node(str(i), red=0, green=1, blue=0, size=50) for i in range(3, 100)]
stream.delete_node(*node_list)