Class: GraphVizExport

Inherits:
Object
  • Object
show all
Defined in:
lib/lucidMachines/graphviz_export.rb

Instance Method Summary collapse

Constructor Details

#initialize(chart) ⇒ GraphVizExport

Returns a new instance of GraphVizExport.



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# File 'lib/lucidMachines/graphviz_export.rb', line 2

def initialize(chart)
  @chart = chart
  @g = GraphViz.new( :G, :type => :digraph )

  @node_map = {}
  @edge_map = {}
end

Instance Method Details

#build_graph(output_name) ⇒ Object 



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# File 'lib/lucidMachines/graphviz_export.rb', line 10

def build_graph(output_name)
  create_nodes
  create_edges
  @g.output( :png => output_name )
end

#create_edges ⇒ Object 



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# File 'lib/lucidMachines/graphviz_export.rb', line 31

def create_edges
  @chart.states.each do |b|
    
    src = @node_map[b]

    b.links_to.each do |link, b2|

      next unless b2.is_state?
      
      dst = @node_map[b2]
      next if b2.is_hidden?
      e = @g.add_edges(src, dst)

      # b.add_edge(e)
      @edge_map[b] = [] if @edge_map[b].nil?
      @edge_map[b] << e 
      
      # style
      e[:arrowhead] = get_arrow_style(link.destination_arrow)
      e[:arrowtail] = get_arrow_style(link.source_arrow)
      
      #    if link.source_arrow.eql? "None"
      
      unless link.text.nil?
        e[:label] = link.text
        e[:color] = "red" if link.text.eql? "No"
        e[:color] = "green" if link.text.eql? "Yes"
      end
    end
  end
end

#create_nodes ⇒ Object 



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# File 'lib/lucidMachines/graphviz_export.rb', line 16

def create_nodes
  @chart.states.each do |b|
    
    n = @g.add_node(b.id)
    @node_map[b] = n

    n[:label] =  b.text.to_s
    n[:color] = "purple" if b.is_initial?
    n[:shape] = "box" # look like lucid@chart

    n[:shape] = "diamond" if b.type.eql? "event"
    n[:shape] = "circle" if b.type.eql? "transition"
  end
end

#get_arrow_style(lucid_style) ⇒ Object 



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# File 'lib/lucidMachines/graphviz_export.rb', line 63

def get_arrow_style(lucid_style)
  return "none" if lucid_style.eql? "None"
  return "normal" if lucid_style.eql? "Arrow"
  return "empty" if lucid_style.eql? "Hollow Arrow"
  return "open" if lucid_style.eql? "Open Arrow"
  
  return "none"
end