read-batch: Batch read

In sigmajs: Interface to 'Sigma.js' Graph Visualization Library

Description

Read nodes and edges by batch with a delay.

Usage

sg_read_delay_nodes_p(proxy, data, ..., delay)

sg_read_delay_edges_p(proxy, data, ..., delay)

sg_read_delay_exec_p(proxy, refresh = TRUE)

Arguments

proxy	An object of class sigmajsProxy as returned by sigmajsProxy.
data	A data.frame of nodes or edges to add to the graph.
...	any column.
delay	Column name of containing batch identifier.
refresh	Whether to refresh the graph after each batch (delay) has been added to the graph. Note that this will also automatically restart any running force layout.

Details

Add nodes and edges with sg_read_delay_nodes_p and sg_read_delay_edges_p then execute (send to JavaScript end) with sg_read_delay_exec_p.

Value

The proxy object.

Examples

library(shiny)

ui <- fluidPage(
	actionButton("add", "add nodes & edges"),
	sigmajsOutput("sg")
)

server <- function(input, output, session){

	output$sg <- renderSigmajs({
		sigmajs()
	})

	observeEvent(input$add, {
		nodes <- sg_make_nodes(50)
		nodes$batch <- c(
			rep(1000, 25),
			rep(3000, 25)
		)

		edges <- data.frame(
			id = 1:80,
			source = c(
				sample(1:25, 40, replace = TRUE),
				sample(1:50, 40, replace = TRUE)
			),
			target = c(
				sample(1:25, 40, replace = TRUE),
				sample(1:50, 40, replace = TRUE)
			),
			batch = c(
				rep(1000, 40),
				rep(3000, 40)
			)
		) %>% 
		dplyr::mutate_all(as.character)

		sigmajsProxy("sg") %>% 
     sg_force_start_p() %>% 
			sg_read_delay_nodes_p(nodes, id, color, label, size, delay = batch) %>% 
			sg_read_delay_edges_p(edges, id, source, target, delay = batch) %>% 
			sg_read_delay_exec_p()  %>% 
			sg_force_stop_p()
	})

}

if(interactive()) shinyApp(ui, server)

sigmajs documentation built on July 8, 2020, 5:16 p.m.