Graph::Easy - Manual

The alignment of the label text. One of: center, left, right.
Defaults to:

• left for edge
• left for group
• center for anything else

graph { align: left; label: My Graph; }
node {align: left;}
 ( Nodes:
 [ Right\nAligned ] { align: right; } -- label\n text -->
 { align: left; }
 [ Left\naligned ] )

The basic shape of the arrow. Can be combined with each of arrowstyle. One of: triangle, box, dot, inv, line, diamond, cross, x.
Defaults to: triangle
Example graph:

[ A ] -- triangle --> [ B ]
 -- box --> { arrowshape: box; } [ C ]
 -- inv --> { arrowshape: inv; } [ D ]
 -- diamond --> { arrowshape: diamond; } [ E ]
 -- dot --> { arrowshape: dot; } [ F ]
 -- line --> { arrowshape: line; } [ G ] 
 -- plus --> { arrowshape: cross; } [ H ] 
 -- x --> { arrowshape: x; } [ I ] 

[ a ] -- triangle --> { arrowstyle: filled; } [ b ]
 -- box --> { arrowshape: box; arrowstyle: filled; } [ c ]
 -- inv --> { arrowshape: inv; arrowstyle: filled; } [ d ]
 -- diamond --> { arrowshape: diamond; arrowstyle: filled; } [ e ]
 -- dot --> { arrowshape: dot; arrowstyle: filled; } [ f ]
 -- line --> { arrowshape: line; arrowstyle: filled; } [ g ] 
 -- plus --> { arrowshape: cross; arrowstyle: filled; } [ h ] 
 -- x --> { arrowshape: x; arrowstyle: filled; } [ i ] 

The style of the arrow. Open arrows are vee-shaped and the bit inside the arrow has the color of the background. Closed arrows are triangle shaped, with a background-color fill. Filled arrows are closed, too, but use the fill color for the inside. An arrowstyle of none creates undirected edges just like "[A] -- [B]" would do. One of: none, open, closed, filled.
Defaults to: open
Example graph:

[ A ] -- open --> [ B ]
 -- closed --> { arrowstyle: closed; } [ C ]
 -- filled --> { arrowstyle: filled; } [ D ]
 -- filled --> { arrowstyle: filled; fill: lime; } [ E ]
 -- none --> { arrowstyle: none; } [ F ]

Controls whether the layouter can join this edge automatically with other edges leading to the same node. never means this edge will never joined with another edge automatically, always means always (if possible), even if the attributes on the edges do not match. equals means only edges with the same set of attributes will be automatically joined together. See also autosplit. One of: never, always, equals.
Defaults to: never
Example graph:

[ Bonn ], [ Aachen ]
 -- 1 --> { autojoin: equals; } [ Berlin ]

Will restrict the label text to N characters. N must be greater than 10. See the section about labels, titles, names and links for reference.
Defaults to:

• for graph
• inherit for anything else

graph { autolabel: 20; autotitle: name; }

[ Bonn ]
 -- Acme Travels Incorporated -->
  [ Frankfurt (Main) / Flughafen ]

If set to something else than 'none', will use the appropriate attribute to automatically generate the link, unless link is already set. See the section about labels, titles, names and links for reference. One of: label, title, name, none, inherit.
Defaults to:

• none for graph
• inherit for anything else

Controls whether the layouter replace multiple edges leading from one node to other nodes with one edge splitting up. never means this edge will never be part of such a split, always means always (if possible), even if the attributes on the edges do not match. equals means only edges with the same set of attributes will be automatically split up. See also autojoin. One of: never, always, equals.
Defaults to: never
Example graph:

[ Bonn ]
 -- 1 --> { autosplit: equals; } [ Berlin ], [ Aachen ]

If set to something else than 'none', will use the appropriate attribute to automatically generate the title, unless title is already set. See the section about labels, titles, names and links for reference. One of: label, name, none, link, inherit.
Defaults to:

• none for graph
• inherit for anything else

The background color, e.g. the color outside the shape. Do not confuse with fill. If set to inherit, the object will inherit the fill color (not the background color!) of the parent e.g. the enclosing group or graph. See the section about color names and values for reference.
Defaults to: inherit
Example graph:

[ Crimson ] { shape: circle; background: crimson; }
 -- Aqua Marine --> { background: #7fffd4; }
 [ Misty Rose ]
  { background: white; fill: rgb(255,228,221); shape: ellipse; }

The border. Can be any combination of borderstyle, bordercolor and borderwidth.
Defaults to:

• dashed 1px #000000 for group
• none for group.anon
• solid 1px #000000 for node
• none for node.anon
• none for anything else

[ Normal ]
 --> [ Bold ]      { border: bold; }
 --> [ Broad ]     { border: broad; }
 --> [ Wide ]      { border: wide; }
 --> [ Bold-Dash ] { border: bold-dash; }

The color of the border. See the section about color names and values for reference.
Defaults to:

• #000000 for anything else

node { border: black bold; }
[ Black ]
 --> [ Red ]      { bordercolor: red; }
 --> [ Green ]    { bordercolor: green; }

The style of the border. The special styles "bold", "broad", "wide", "double-dash" and "bold-dash" will set and override the borderwidth. One of: none, solid, dotted, dashed, dot-dash, dot-dot-dash, double, wave, bold, bold-dash, broad, double-dash, wide.
Defaults to:

• dashed for group
• none for group.anon
• solid for node
• none for node.anon
• none for anything else

node { border: dotted; }
[ Dotted ]
 --> [ Dashed ]      { borderstyle: dashed; }
 --> [ broad ]    { borderstyle: broad; }

The width of the border. Certain border-styles will override the width.
Defaults to: 1
Example value: 2px

The subclass of the object. See the section about class names for reference.
Defaults to:
Example value: mynodeclass

The foreground/text/label color. See the section about color names and values for reference.
Defaults to: black
Example graph:

[ Lime ] { color: limegreen; }
 -- label --> { color: blue; labelcolor: red; }
 [ Dark Orange ] { color: rgb(255,50%,0.01); }

The colorscheme to use for all color values. See the section about color names and values for reference and a list of possible values.
Defaults to:

• w3c for graph
• inherit for anything else

graph { colorscheme: accent8; } [ 1 ] { fill: 1; }
 -> 
 [ 3 ] { fill: 3; }
 -> 
 [ 4 ] { fill: 4; }
 -> 
 [ 5 ] { fill: 5; }
 -> 
 [ 6 ] { fill: 6; }
 -> 
 [ 7 ] { fill: 7; }
 -> 
 [ 8 ] { fill: 8; }

A free-form text field containing a comment on this object. This will be embedded into output formats if possible, e.g. in HTML, SVG and Graphviz, but not ASCII or Boxart.
Defaults to:
Example graph:

graph { comment: German capitals; }
 [ Bonn ] --> [ Berlin ]

The ending port of this edge. See the section about joints for reference.
Defaults to:
Example graph:

[ Bonn ] -- NORTH --> { start: south; end: east; } [ Berlin ]

The fill color, e.g. the color inside the shape. For the graph, this is the background color for the label. For edges, the color inside the arrow shape. See also background. See the section about color names and values for reference.
Defaults to:

• inherit for edge
• inherit for graph
• #a0d0ff for group
• white for group.anon
• inherit for node.anon
• white for anything else

[ Crimson ]
  {
  shape: circle;
  background: yellow;
  fill: red;
  border: 3px solid blue;
  }
-- Aqua Marine -->
  {
  arrowstyle: filled;
  fill: red;
  }
[ Two ]

The general direction in which edges will leave nodes first. On edges, influeces where the target node is place. Please see the section about flow control for reference.
Defaults to:

• east for graph
• inherit for anything else

graph { flow: up; }
 [ Enschede ] { flow: left; } -> [ Bielefeld ] -> [ Wolfsburg ]

A prioritized list of lower-case, unquoted values, separated by a comma. Values are either font family names (like "times", "arial" etc) or generic family names (like "serif", "cursive", "monospace"), the first recognized value will be used. Always offer a generic name as the last possibility.
Defaults to:

• sans-serif for edge
• serif for anything else

graph { font: vinque, georgia, utopia, serif; label: Sample; }

 ( Nodes:
 [ Webdings ] { font: Dingbats, webdings; }
 -- FlatLine -->
 { font: flatline; }
  [ Normal ] )

The size of the label text, best expressed in em (1.0em, 0.5em etc) or percent (100%, 50% etc)
Defaults to:

• 1em for graph
• 1em for node
• 0.8em for anything else

graph { fontsize: 200%; label: Sample; }

 ( Nodes:
 [ Big ] { fontsize: 1.5em; color: white; fill: darkred; }
  -- Small -->
 { fontsize: 0.2em; }
  [ Normal ] )

The formatting language of the label. The default, none means nothing special will be done. When set to pod, formatting codes like B<bold> will change the formatting of the label. See the section about label text formatting for reference. One of: none, pod.
Defaults to: none
Example graph:

graph {
  format: pod;
  label: I am B<bold> and I<italic>;
  }
node { format: pod; }
edge { format: pod; }

[ U<B<bold and underlined>> ]
--> { label: "S<Fähre>"; }
 [ O<Konstanz> ]

A unique identifier for this object, consisting only of letters, digits, or underscores.
Defaults to:
Example graph:

[ Bonn ] --> { id: 123; } [ Berlin ]

The text displayed as label. If not set, equals the name (for nodes) or no label (for edges, groups and the graph itself).
Defaults to:
Example value: My label

The text color for the label. If unspecified, will fall back to color. See the section about color names and values for reference.
Defaults to: black
Example graph:

[ Bonn ] -- ICE --> { labelcolor: blue; }
 [ Berlin ]

The link part, appended onto linkbase. See the section about links for reference.
Defaults to:
Example graph:

node {
  autolink: name;
  textstyle: none;
  fontsize: 1.1em;
  }
graph {
  linkbase: http://de.wikipedia.org/wiki/;
  }
edge {
  textstyle: overline;
  }

[] --> [ Friedrichshafen ]
 -- Schiff --> { autolink: label; color: orange; title: Vrooom!; }
[ Immenstaad ] { color: green; } --> [ Hagnau ]

The base URL prepended to all generated links. See the section about links for reference.
Defaults to:

• /wiki/index.php/ for graph
• inherit for anything else

The minimum length of the edge, in cells. Defaults to 1. The minimum length is automatically increased for edges with joints.
Defaults to: 1
Example graph:

[ Bonn ] -- longer --> { minlen: 3; } [ Berlin ]
[ Bonn ] --> [ Potsdam ] { origin: Bonn; offset: 2,2; }

The starting port of this edge. See the section about joints for reference.
Defaults to:
Example graph:

[ Bonn ] -- NORTH --> { start: north; end: north; } [ Berlin ]

The line style of the edge. When set on the general edge class, this attribute changes only the style of all solid edges to the specified one. One of: solid, dotted, dashed, dot-dash, dot-dot-dash, bold, bold-dash, double-dash, double, wave, broad, wide, invisible.
Defaults to: solid
Example graph:

[ A ] -- solid --> [ B ]
 .. dotted ..> [ C ]
 -  dashed - > [ D ]
 -- bold --> { style: bold; } [ E ]
 -- broad --> { style: broad; } [ F ]
 -- wide --> { style: wide; } [ G ]

The style of the label text. Either 'none', or any combination (separated with spaces) of 'underline', 'overline', 'bold', 'italic', 'line-through'. 'none' disables underlines on links.
Defaults to:
Example graph:

graph {
  fontsize: 150%;
  label: Verbindung;
  textstyle: bold italic;
  }
node {
  textstyle: underline bold;
  fill: #ffd080;
  }
edge {
  textstyle: italic bold overline;
  }

[ Meersburg ] { fontsize: 2em; }
 -- Fähre --> { fontsize: 1.2em; color: red; }
 [ Konstanz ]

The default none makes the label text appear exactly as it was written, with manual line breaks applied. When set to a positive number, the label text will be wrapped after this number of characters. When set to auto, the label text will be wrapped to make the node size as small as possible, depending on output format this may even be dynamic. When not none, manual line breaks and alignments on them are ignored.
Defaults to:

• none for graph
• inherit for anything else

node { textwrap: auto; }
 ( Nodes:
 [ Frankfurt (Oder) liegt an der
   ostdeutschen Grenze und an der Oder ] -->
 [ Städte innerhalb der
   Ost-Westfahlen Region mit sehr langen Namen] )

The text displayed as mouse-over for nodes/edges, or as the title for the graph. If empty, no title will be generated unless autotitle is set.
Defaults to:
Example value: My title