# No errors. Works fine, output is correct.

require 'rubyvis'

dat = pv.range(0, 10, 0.1).map {|x|
  o = {:x=> x, :y=> Math.sin(x) + 2+rand()}
  STDERR.puts o.inspect
  o
}
STDERR.puts "size of dat: #{dat.size}"
STDERR.puts "first x = #{dat.first[:x]}"
STDERR.puts "first y = #{dat.first[:y]}"


#dat.each do |d|
#  STDERR.puts [d.x,d.y].join("\t")
#end

#p data
w = 400
h = 200
x = pv.Scale.linear(dat, lambda {|d| d[:x]}).range(0, w)
y = pv.Scale.linear(dat, lambda {|d| d[:y]}).range(0, h)

STDERR.puts "after scale"

#/* The root panel. */
vis = pv.Panel.new()
  .width(w)
  .height(h)
  .bottom(20)
  .left(20)
  .right(10)
  .top(5)

STDERR.puts "a"
vis.add(pv.Line).
  data(dat).
  line_width(5).
  left(lambda {|d| x.scale(d[:x])}).
  bottom(lambda {|d| y.scale(d[:y])}).
  anchor("bottom").add(pv.Line).
    stroke_style('red').
    line_width(1)

STDERR.puts "b"

vis