Method: FSM::FSM#plot

Defined in:
lib/fsm-0.0.0/fsm.rb

#plot(dot_in = nil, dot_out = nil, fmt = 'jpg', &b) ⇒ Object 



171
172
173
174
175
176
177
178
179
180
181
182
183
184
 
# File 'lib/fsm-0.0.0/fsm.rb', line 171

def plot dot_in = nil, dot_out = nil, fmt = 'jpg', &b
  dot_in ||= 
    (tmp = Tempfile.new("#{ Process.pid }-#{ Time.now.to_i }-#{ rand }")).path 
  if tmp
    tmp.puts to_dot
    tmp.close
  else
    open(dot_in, 'w'){|f| f.puts to_dot}
  end
  dot_out = dot_in + '.' + fmt
  cmd = "#{ DOT_CMD } -T#{ fmt } #{ dot_in } -o #{ dot_out }"
  system cmd or raise "cmd <#{ cmd } failed with <#{ $?.exitstatus }>" 
  dot_out
end