Constructor for BrowserViz

This constructor function:

  • creates the BrowserViz object

  • initializes the httpuv web server

  • prepares that web server to additionally handle websocket traffic

  • loads a "browserFile" - an html/javascript/css web page to communicate with in your web browser

  • opens websocket communication between your R session and your browser

  • installs an optional "httpQueryProcessingFunction" to handle http (non-websocket) requests.

BrowserViz(portRange = 10000:10100, title = "BrowserViz", browserFile,
  quiet = TRUE, httpQueryProcessingFunction = NULL)

Arguments

portRange

The constructor looks for a free websocket port in this range. 15000:15100 by default
title

Used for the web browser window, "igvR" by default
browserFile

The full path to the bundled html, js and libraries, and css which constitute the browser app
quiet

A logical variable controlling verbosity during execution
httpQueryProcessingFunction

a function, default NULL, provides subclasses with the opportunity to execute code on the http server created here.

Value

An object of the BrowserViZ class