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executable file 39 lines (28 sloc) 622 Bytes
#!/usr/bin/ruby -w
require "graph"
digraph do
# composite styles
leaf_node = white + filled
subgraph "cluster_0" do
label "process #1"
graph_attribs << filled << lightgray
node_attribs << leaf_node
edge "a0", "a1", "a2", "a3"
subgraph "cluster_1" do
label "process #2"
graph_attribs << blue
node_attribs << filled
edge "b0", "b1", "b2", "b3"
edge "start", "a0"
edge "start", "b0"
edge "a1", "b3"
edge "b2", "a3"
edge "a3", "a0"
edge "a3", "end"
edge "b3", "end"
mdiamond << node("start")
msquare << node("end")
save "cluster", "png"
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