Contents

require "unicode_plot"
require "stringio"
require "io/console"

N = 1000
M = 50

def generate_random_data(n)
  Array.new(n) { rand(-10.0..10.0) }
end

def monitor_keypress
  loop do
    key = STDIN.getch
    if key.downcase == "q"
      @stop_streaming = true
      break
    end
  end
end

out = StringIO.new
def out.tty?
  true
end

Thread.new { monitor_keypress }

loop do
  out.truncate(0)

  plot =
    UnicodePlot.lineplot(
      generate_random_data(40),
      name: "Series 0",
      width: 120,
      height: 30
    )
  UnicodePlot.lineplot!(
    plot,
    generate_random_data(40),
    name: "Series 1",
    color: :red
  )
  plot.render(out)

  lines = out.string.lines
  lines.each { |line| $stdout.print "\r#{line}" }
  $stdout.print "\e[0J"
  $stdout.flush
  break if @stop_streaming

  n = lines.count
  $stdout.print "\e[#{n}F"
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rfbeam-0.5.8	streamer2.rb
rfbeam-0.5.1	streamer2.rb