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networkx
Backfill labeled node with color
What do you mean by backfill? You can fill a node and you can set textcolor and background color on text
I mean background color. However that doesn't seem to be possible.
import networkx as nx
import matplotlib.pyplot as plt
import random
from grave import plot_network
graph = nx.barbell_graph(10, 14)
nx.set_node_attributes(graph, dict(graph.degree()), 'degree')
graph = nx.relabel_nodes(graph, {k: str(i) for i, k in enumerate(graph.node)})
def degree_colorer(node_attributes):
deg = node_attributes['degree']
shape = random.choice(['s', 'o', '^', 'v', '8'])
if deg > 5:
return {'color': 'r', 'size': 20*deg,
# 'shape': shape,
'label': 'hi'
}
return {'color': 'b', 'size': 20*deg,
# 'shape': shape,
'label': 'hi'
}
def pathological_edge_style(edge_attrs):
return {'color': random.choice(['r', (0, 1, 0, .5), 'xkcd:ocean'])}
fig, ax = plt.subplots()
plot_network(graph, ax=ax,
node_style=dict(node_size=20, color='r', edgecolor='r'),
# node_style=degree_colorer,
edge_style=pathological_edge_style,
node_label_style={'font_size': 20,
'font_color': 'r',
'backgroundcolor': 'b'
}
)
plt.show()
'''
We can calculate the execution order by walking the graph from a node and
summing it's edge labels (with zeros if there is none). This way all the nodes
on the first path will have a value of zero. Finally, since some nodes are
part of multiple trr
'''
Is the backgroundcolor key being passed in?
You are correct -- while that property (and others) are available in matplotlib, the GraVE code doesn't pass through many text attributes to the label artists.
Is there a reason we limit the attributes using key_map here?
Is there a nice way to have key_map mimic the matplotlib attributes directly?
FYI I also hacked the Text object created (to make all the nodes red) and still no joy.
Ahh -- in your example, the text is so large that it covers up the nodes. You have set the node_size to 20 but that doesn't seem to do anything. A little hunting shows t hat you need to set size=20 for nodes rather than node_size .
Looks like we have to make styles better at catching buggy input!
Anyway, if you use size=2000 you will see red disk nodes around your text labels.
As a follow up on this I was able to change the node size and see the color but the text background color seems to be white, is it possible to change this?
