Interactive graph viewer powered by sigma.js

Creates an htmlwidget that renders a GEXF graph using sigma.js v3 and graphology. Node positions, colours, and sizes are read from the viz:* attributes embedded in the GEXF document. Nodes are drawn with a thin border ring whose colour is controlled by borderColor.

Usage

sigmajs(
  gexf = system.file("gexf-graphs/lesmiserables.gexf", package = "rgexf"),
  width = NULL,
  height = NULL,
  borderColor = NULL,
  borderSize = 0.15
)

sigmajsOutput(outputId, width = "100%", height = "400px")

renderSigmajs(expr, env = parent.frame(), quoted = FALSE)

Arguments

gexf: Either a gexf object, or a path to a .gexf file. Defaults to the bundled Les Misérables example.
width, height: Widget dimensions in pixels. Defaults to NULL, in which case the widget spans the full available width and is 450px tall.
borderColor: A CSS colour string for the node border ring. Defaults to NULL (no border — sigma.js's default plain filled circle). Set to a colour such as "#ffffff" to add a ring.
borderSize: Border ring thickness as a fraction of the node radius (0–1). Only used when borderColor is set. Defaults to 0.15 (15 %).
outputId: Shiny output ID.
expr: An expression that returns a sigmajs widget.
env: The environment in which to evaluate expr.
quoted: Logical scalar. Is expr a quoted expression?

Value

An htmlwidget object.

Examples

if (interactive()) {
  path <- system.file("gexf-graphs/lesmiserables.gexf", package = "rgexf")
  sigmajs(path)

  # White border ring
  sigmajs(path, borderColor = "#ffffff", borderSize = 0.15)
}