Attributes are used to customise the layout and design of Dot graphs. Care must be taken to ensure that the attribute you use is valid, as not all attributes can be used everywhere.

Equivalent to Label . toLabelValue; the most common label Attribute.

An alias for toLabel for use with the OverloadedStrings extension.

Create a label outside of a node/edge. Currently only in the Graphviz development branch (2.29.*).

An alias for xLabel for use with the OverloadedStrings extension.

Force the positioning of xLabels, even when it will cause overlaps.

An alias for toLabelValue for use with the OverloadedStrings extension.

A convenience class to make it easier to create labels. It is highly recommended that you make any other types that you wish to create labels from an instance of this class, preferably via the String or Text instances.

The X11 colors that Graphviz uses. Note that these are slightly different from the "normal" X11 colors used (e.g. the inclusion of Crimson). Graphviz's list of colors also duplicated almost all Gray colors with Grey ones; parsing of an X11Color which is specified using "grey" will succeed, even for those that don't have the duplicate spelling (e.g. DarkSlateGray1).

Specify the background color of a graph or cluster. For clusters, if style filled is used, then fillColor will override it.

As with bgColor, but add a second color to create a gradient effect. Requires Graphviz >= 2.29.0.

Specify the fill color of a node, cluster or arrowhead. Requires style filled for nodes and clusters. For nodes and edges, if this isn't set then the color value is used instead; for clusters, bgColor is used.

As with fillColor, but add a second color to create a gradient effect. Requires Graphviz >= 2.29.0.

Specify the color of text.

Specify the color of the bounding box of a cluster.

The color attribute serves several purposes. As such care must be taken when using it, and it is preferable to use those alternatives that are available when they exist.

• The color of edges;
• The bounding color of nodes;
• The bounding color of clusters (i.e. equivalent to penColor);
• If the filled Style is set, then it defines the background color of nodes and clusters unless fillColor or bgColor respectively is set.

Specify the width of lines. Valid for clusters, nodes and edges.

Specify the angle at which gradient fills are drawn; for use with bgColors and fillColors. Requires Graphviz >= 2.29.0.

A particular style type to be used.

Also available for edges.

Also available for edges.

Also available for edges.

Also available for edges.

Also available for edges.

Also available for clusters.

Only available for nodes.

Only available for rectangularly-shaped nodes and clusters. Requires Graphviz >= 2.30.0.

Only available for elliptically-shaped nodes. Requires Graphviz >= 2.30.0.

Also available for clusters.

Only available for edges; creates a tapered edge between the two nodes. Requires Graphviz >= 2.29.0.

Available for nodes, clusters and edges. When using gradientAngle, indicates that a radial gradient should be used. Requires Graphviz >= 2.29.0.

The shape of a node.

Geometries of shapes are affected by the attributes Regular, Peripheries and Orientation.

How to draw the arrow at the node the edge is pointing to. For an undirected graph, requires either edgeEnds Forward or edgeEnds Both.

How to draw the arrow at the node the edge is coming from. Requires either edgeEnds Back or edgeEnds Both.

Specify where to place arrows on an edge.

Specify where to place arrow heads on an edge.

A particular way of drawing the end of an edge.

Specify an ordering of edges of a node: either the outgoing or the incoming edges of a node must appear left-to-right in the same order in which they are defined in the input.

When specified as both a global graph or sub-graph level attribute, then it takes precedence over an attribute specified for an individual node.

When using dot, this allows you to control relative placement of sub-graphs and clusters.