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Update wardley.py #7

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May 21, 2023
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Update wardley.py #7

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26 changes: 25 additions & 1 deletion ipywardley/wardley.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ def __init__(self, owm):
self.title = None
self.nodes = {}
self.edges = []
self.bluelines = []
self.evolutions = {}
self.annotations = []
self.annotation = {}
Expand Down Expand Up @@ -64,6 +65,14 @@ def __init__(self, owm):
elif "->" in cl:
n_from, n_to = cl.split('->')
self.edges.append([n_from.strip(), n_to.strip()])
elif "+<>" in cl:
edge_parts = cl.split('+<>')
if len(edge_parts) != 2:
self.warnings.append(f"Unexpected format for blueline definition: {cl}. Skipping this edge.")
continue
n_from, n_to = edge_parts
self.bluelines.append([n_from.strip(), n_to.strip()])
continue
elif cl.startswith('evolve '):
match = self._evolve_regex.search(cl)
if match != None:
Expand Down Expand Up @@ -208,7 +217,22 @@ def generate_wardley_plot(self, ax, wm):
lc = LineCollection(l, color=matplotlib.rcParams['axes.edgecolor'], lw=1)
#lc = LineCollection(l, color="k", lw=1, linestyle=['-'])
ax.add_collection(lc)


# Plot bluelines :
b = []
for blueline in wm.bluelines:
if blueline[0] in wm.nodes and blueline[1] in wm.nodes:
n_from = wm.nodes[blueline[0]]
n_to = wm.nodes[blueline[1]]
b.append([ (n_from['mat'],n_from['vis']), (n_to['mat'],n_to['vis']) ])
else:
for n in blueline:
if n not in wm.nodes:
show_warning("Could not find a component called '%s'!" % n)
if len(b) > 0:
lc = LineCollection(b, color='blue', lw=2)
ax.add_collection(lc)

# Add the nodes:
for node_title in wm.nodes:
n = wm.nodes[node_title]
Expand Down