Update nodes/edges/combos to a g6 graph via proxy

This function updates one or more nodes/edges/combos to an existing g6 graph instance using a proxy object. This allows updating the graph without completely re-rendering it.

Usage

g6_update_nodes(graph, ...)

g6_update_edges(graph, ...)

g6_update_combos(graph, ...)

Arguments

graph

A g6_proxy object created with g6_proxy.

...

Nodes or edges or combos. You can pass a list of nodes/edges/combos, a dataframe or leverage the g6_nodes(), g6_edges() or g6_combos() helpers or pass individual elements like g6_node(), g6_edge() or g6_combo(). Elements structure must be compliant with specifications listed at https://g6.antv.antgroup.com/manual/element/overview.

Value

The g6_proxy object (invisibly), allowing for method chaining.

Details

This function can only be used with a g6_proxy object within a Shiny application. It will not work with regular g6 objects outside of Shiny.

See https://g6.antv.antgroup.com/en/api/data#graphupdatenodedata, https://g6.antv.antgroup.com/en/api/data#graphupdateedgedata and https://g6.antv.antgroup.com/en/api/data#graphupdatecombodata for more details.

See also

g6_proxy, g6_remove_nodes

Examples

if (interactive()) {
  library(shiny)
  library(g6R)
  library(bslib)

  # Static data defined globally
  nodes <- data.frame(id = 1:3)
  edges <- data.frame(source = c(1, 2), target = c(2, 3))

  ui <- page_fluid(
    title = "Update Nodes Dynamically",
    g6_output("graph"),
    actionButton("update_node", "Update Node 1 Label")
  )

  server <- function(input, output, session) {
    output$graph <- render_g6({
      g6(nodes = nodes, edges = edges) |> g6_layout()
    })

    observeEvent(input$update_node, {
      # Update label for node 1
      g6_update_nodes(
        g6_proxy("graph"),
        g6_node(id = 1, style = list(labelText = "Node label updated"))
      )
    })
  }

  shinyApp(ui, server)
}