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.
curve_multiple(graph, start = 0.5)
- The input graph.
- The curvature at the two extreme edges. All edges will have a
start, spaced equally.
curve_multiple calculates the optimal
edge.curved vector for
plotting a graph with multiple edges, so that all edges are visible.
- A numeric vector, its length is the number of edges in the graph.
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) set.seed(42) plot(g)