curve_multiple

From igraph v1.2.3 by Gabor Csardi

Optimal edge curvature when plotting graphs

If graphs have multiple edges, then drawing them as straight lines does not show them when plotting the graphs; they will be on top of each other. One solution is to bend the edges, with diffenent curvature, so that all of them are visible.

Keywords: graphs

Usage

curve_multiple(graph, start = 0.5)

Arguments

graph: The input graph.
start: The curvature at the two extreme edges. All edges will have a curvature between -start and start, spaced equally.

Details

curve_multiple calculates the optimal edge.curved vector for plotting a graph with multiple edges, so that all edges are visible.

Value

A numeric vector, its length is the number of edges in the graph.

Examples

# NOT RUN {
g <- graph( c(0,1,1,0,1,2,1,3,1,3,1,3,
              2,3,2,3,2,3,2,3,0,1)+1 )

curve_multiple(g)

# }
# NOT RUN {
set.seed(42)
plot(g)
# }
# NOT RUN {
# }

Documentation reproduced from package igraph, version 1.2.3, License: GPL (>= 2)

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