What is the 'nodes' argument in hv.Graph.from_networkx?

HoloViews
2

I tried to put together a full example based on your description; here’s what I get:

import holoviews as hv
from holoviews import opts
import networkx as nx
hv.extension('bokeh')
opts.defaults(opts.Graph(width=400, height=400))

demo_nodes = [  ('n2549',     {'TYPE': ':SalesOrderLineItem',
                               'label': '1',
                               'line_id': 1,
                               'amount': 3718.5,
                               'quantity': 184.0,
                               'sales_order_internal_id': 1,
                               'features': 'none'}),
                ('n2548',   {'TYPE': ':SalesOrderLineItem',
                               'label': '1',
                               'line_id': 1,
                               'amount': 4000,
                               'quantity': 1,
                               'sales_order_internal_id': 2,
                               'features': 'none'}),
                ('n25497',  {'TYPE': ':RevenueLineItem',
                               'label': '1',
                               'line_id': 1,
                               'amount': 4000,
                               'quantity': 12,
                               'sales_order_internal_id': 2,
                               'features': 'none'})]

demo_edges = [('n25497','n2548')]

temp_g = nx.Graph()

temp_g.add_nodes_from(demo_data)
temp_g.add_edges_from(demo_edges)

g_plot = hv.Graph.from_networkx(temp_g, nx.layout.spring_layout)
g_plot.opts(node_color='TYPE', cmap='Category10', height=600, width=600)

image
image634×630 10.1 KB

… on your side, did the image render but with no node colors?

Here are 2 other related answers that deal with node property mappings:

“simple” mapping case for node properties to out-of-box visualization elements:
Change the node shape of a network graph

“trickier” case with a callback for the glyphs
Oval shapes for holoviews.Nodes