agopenTrue: A function to obtain a laidout 'Ragraph' object

In gridGraphviz: Drawing Graphs with 'grid'

A function to obtain a laidout Ragraph object

Description

This function is a wrapper for the Rgraphviz function agopen and will produce a laidout Ragraph object with layout more true to the result produced by graphviz.

Usage

agopenTrue(graph, name, nodes, edges, kind = NULL, layoutType = "dot", 
           attrs = list(), nodeAttrs = list(), edgeAttrs = list(),
           subGList = list(), edgeMode = edgemode(graph),
           recipEdges = c("combined", "distinct"))

Arguments

graph	An object of class graphNEL
nodes	A list of pNode objects
edges	A list of pEdge objects
name	The name of the graph
kind	The type of graph
layoutType	Defines the layout engine. Defaults to dot, and see graphvizCapabilities()$layoutTypes for possible values.
attrs	A list of graphviz attributes
nodeAttrs	A list of specific node attributes
edgeAttrs	A list of specific edge attributes
subGList	A list describing subgraphs for the graph parameter
edgeMode	Whether the graph is directed or undirected
recipEdges	How to handle reciprocated edges, defaults to combined

Details

As of Rgraphviz version 2.2.1 (2013-01-31) agopen:

• Produces graphs of the same size as the current device, or at a default size of 7x7 inches.

• Forces nodes to fixed default height and width.

• Does not pass through edge weight information.

This function returns an Ragraph object with graph and node sizes set by graphviz or by the user. It also ensures edge weight information is passed through.

Value

An object of class Ragraph

Author(s)

Ashley Noel Hinton

References

graphviz

See Also

agopen

Examples

gnel <- new("graphNEL",
            nodes=letters[1:3],
            edgeL=list(a=list(edges=c("b", "c")),
                       b=list(),
                       c=list()),
            edgemode="directed")
rag <- agopenTrue(gnel, "")
grid.graph(rag)

gridGraphviz documentation built on April 11, 2022, 1:06 a.m.