Graph::Easy - Manual

Attributes

If you haven't done so, please read the Overview first.

This chapter describes all the possible attributes for graphs, groups, nodes and edges. It is generated automatically from the definitions in Graph::Easy::Attributes.

Graphs

Nodes

Edges

Groups


Class names

Each of the primary classes node, edge and group can have an arbitrary number of sub-classes.

Subclass names are restricted to [a-z] (lower ASCII letters A to Z) and the _ (underscore). Each subclass can have its own set of attributes.
Objects with their class-attributea set will use the attributes from the appropriate subclass. If an attribute was not defined there, they will inherit the attribute from their primary class. In the following example the left node will have green text, the right one will have red text. Both nodes will have a beige interieur:

node { color: green; fill: beige; }
node.cities { color: red; }

[ Green ] --> [ Red ] { class: cities; }
Example of classes

Labels, Titles and Names

The label is the text displayed for the node, edge etc. It can be different from the name of the object.

Edges do not have a name, but they can have a label. If you try to access the name of an edge, for instance via the autotitle: name; attribute, than the optional edge label will be used instead.

Apart from setting a label manually via the label: Foo; attribute, you can also set labels for entire classes, or use the autolabel: attribute. The latter has the advantage that it can shorten the label automaticall to sane values. See this graph for an example.

Links and URLs

Links are constructed from two parts, by concatenating the linkbase attribute and the link attribute:

node { linkbase: http://www.bloodgate.com/perl/; }

[ Graph ] { link: graph/; }
 --> [ Manual ] { link: graph/manual/; }
Graph Manual

linkbase is ignored unless you also have link or autolink. You can use autolink to automatically set the link attribute to the name, label, or titel of the object:

node { linkbase: http://www.bloodgate.com/perl/; autolink: name; }

[ graph ] --> [ graph/manual ]
graph graph/manual Example of links

Note that link has precedence over autolink, the latter will not override a link attribute on the object itself.
Also, linnkbase is only prepended for relativ links, e.g. ones that do not start with /[a-z]{3,4}://. In the following example the first node will not have the name autolinked, and the second node will ignore the linkbase:

node { linkbase: http://www.bloodgate.com/perl/; autolink: name; }

[ graph ] { link: index.html; } 
  --> [ graph/manual ] { link: http://bloodgate.com; }
graph graph/manual Example of lins

Of course you can also attach a link to an edge, group or graph label.

Color Names and Values

Here is a list of the color names recognized by Graph::Easy and their corrosponding color values. Note that this list is exactly the same as the one published by W3C. So do not blame me for silly things like darkseagreen being lighter than seagreen...

 

black:  navy:  darkblue: 
mediumblue:  blue:  darkgreen: 
green:  teal:  darkcyan: 
deepskyblue:  darkturquoise:  mediumspringgreen: 
lime:  springgreen:  aqua: 
midnightblue:  dodgerblue:  lightseagreen: 
forestgreen:  seagreen:  darkslategrey: 
limegreen:  mediumseagreen:  turquoise: 
royalblue:  steelblue:  darkslateblue: 
mediumturquoise:  indigo:  darkolivegreen: 
cadetblue:  cornflowerblue:  mediumaquamarine: 
dimgray:  slateblue:  olivedrab: 
slategray:  lightslategrey:  mediumslateblue: 
lawngreen:  chartreuse:  aquamarine: 
maroon:  purple:  olive: 
grey:  skyblue:  lightskyblue: 
blueviolet:  darkred:  darkmagenta: 
saddlebrown:  darkseagreen:  lightgreen: 
mediumpurple:  darkviolet:  palegreen: 
darkorchid:  yellowgreen:  sienna: 
brown:  darkgrey:  lightblue: 
greenyellow:  paleturquoise:  lightsteelblue: 
powderblue:  firebrick:  darkgoldenrod: 
mediumorchid:  rosybrown:  darkkhaki: 
silver:  mediumvioletred:  indianred: 
peru:  chocolate:  tan: 
lightgray:  thistle:  orchid: 
goldenrod:  palevioletred:  crimson: 
gainsboro:  plum:  burlywood: 
lightcyan:  lavender:  darksalmon: 
violet:  palegoldenrod:  lightcoral: 
khaki:  aliceblue:  honeydew: 
azure:  sandybrown:  wheat: 
beige:  whitesmoke:  mintcream: 
ghostwhite:  salmon:  antiquewhite: 
linen:  lightgoldenrodyellow:  oldlace: 
red:  magenta:  deeppink: 
orangered:  tomato:  hotpink: 
coral:  darkorange:  lightsalmon: 
orange:  lightpink:  pink: 
gold:  peachpuff:  navajowhite: 
moccasin:  bisque:  mistyrose: 
blanchedalmond:  papayawhip:  lavenderblush: 
seashell:  cornsilk:  lemonchiffon: 
floralwhite:  snow:  yellow: 
lightyellow:  ivory:  inherit: 
white: 

For all other colors you can use one of the following notations: