GDL: Icons and Additional Bitmap Fonts

• Specified by

  fontname: "name and size"
  

• Supported font names

  courR    // courier
  courB    //    ''     bold
  courO    //    ''     oblique
  courBO   //    ''     bold oblique
  helvR    // helvetica
  helvB    //    ''     bold
  helvO    //    ''     oblique
  helvBO   //    ''     bold oblique
  timR     // times
  timB     //    ''     bold
  timI     //    ''     italic
  timBI    //    ''     bold italic
  ncenR    // new century schoolbook
  ncenB    //    ''     bold
  ncenI    //    ''     italic
  ncenBI   //    ''     bold italic
  symb     // symbol
  

• Supported font sizes

  8
  10
  12
  14
  24
  28
  

• The location of the icon file is specified by

  iconfile: "filename"
  

• Supported file formats

  .pbm
  .pgm
  .ppm
  

• Additional graph attributes when using icons

       icons: yes or no  // enables or disables displaying
  fast_icons: yes or no  // sets icons layout speed and quality
  iconcolors: integer    // sets color map size (1 through 256)
  

graph: { iconcolors: 256      node.bordercolor: 9
         edge.color:   8      edge.arrowstyle : line
         node.label: ""       edge.thickness  : 4

node: { title: "1"  fontname: "ncenBI12"
        label: "New Century\nSchoolbook\nBold Italic"   }
node: { title: "2"  iconfile: "icon.ppm"  scaling: 0.65 }
node: { title: "3"  iconfile: "icon.ppm"  scaling: 0.55 }
node: { title: "4"  iconfile: "icon.ppm"  scaling: 0.45 }

edge:     { source: "1"  target: "2" }
edge:     { source: "3"  target: "4" }
nearedge: { source: "2"  target: "3" }
nearedge: { source: "4"  target: "1" }

       }

• Icons are substituted for node backgrounds

  i.e. the node label will be drawn over the icon specified.
  To omit this, simply specify

  label: ""  // see the example above

• Icon files should be in the same directory

  as the .gdl graph specification itself. Otherwise, either set
  the environment variable $AISEEICONS accordingly, or
  specify the exact path to the icon file, e.g.

  iconfile: "/home/me/aisee/icons/blue_lizard.ppm"

• Custom specifications are supported

  node.iconfile: "black_maple_leaf.ppm"  // click here for an example
  node.fontname: "helvR08"               // click here for an example

• Icons will be distorted properly in fish-eye views