Method: Web#create_mind_map

Defined in:
app/models/web.rb

#create_mind_map(prog, missing, show_authors, show_leaves, selected_categories, mm_size) ⇒ Object

create a Mind Map graph and return the PNG and HTML map files generated



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# File 'app/models/web.rb', line 113

def create_mind_map(prog, missing, show_authors, show_leaves, selected_categories, mm_size)
  dotFile = File.expand_path("#{WikiService.storage_path}/graph.dot")
  mapFile = File.expand_path("#{WikiService.storage_path}/graph.map")
  pngFile = File.expand_path("#{WikiService.storage_path}/map.png")
  
  File.open(dotFile, "w") do |file|
  
    # Graph properties:
    output_graph_header_to file, mm_size
  
    # Links and node properties:
    nodes = filter_categories(pages.values, selected_categories)
    auths = authors # avoid repeated selects
    unless show_authors
      nodes.delete_if { |entry|
        auths.include? entry.name
      }
    end
    unless show_leaves
      nodes.delete_if { |page|
        (page.wiki_words - [missing].flatten).size == 0
      }
    end

    # Page Special nodes properties:
    file.puts %{"Home Page" [color=\"##{color}\",style=bold];} if nodes.map{ |p| p.name }.include? "HomePage"

    nodes.each do |page|
      file.puts %{"#{page.plain_name}" [URL=\"../show/#{page.name}\"];}
      page.references.each do |referer|
        unless page.name == referer.name or not nodes.include? referer
          unless !show_authors and auths.include? referer.name
            file.puts %{"#{referer.plain_name}" -> "#{page.plain_name}";}
          end
        end
      end
    end
  
    # find missing pages:
    if missing
      shown_missing = []
      nodes.each do |page|
        missing.each do |wanted|
          if page.content =~ /#{wanted}/
            file.puts %{"#{page.plain_name}" -> "#{WikiWords.separate wanted}";}
            shown_missing << wanted
          end
        end
      end
      shown_missing.each do |wanted|
        file.puts %{"#{WikiWords.separate wanted}" [URL="/#{@address}/show/#{wanted}", fontsize=10,style=filled,color=grey];}
      end
    end

    output_graph_footer_to file
  end

  call_graphviz(prog, dotFile, mapFile, pngFile)
  
  [pngFile, mapFile]
end