3D Scatter demo with Plotrb

3d_scatter_example.rb

require 'plotrb'

values = []

for x in -5..5
  for z in -5..5
    values.push({x: x, y: (x*x+z*z)/5, z: z})
  end
end

data = pdata.name('data').values(values)

mark = rect_mark.from(data)

vis = visualization.width(500).height(500) do
  padding top: 10, left: 30, bottom: 30, right: 10
  data data
  marks mark
  enable :Plot3D
end

vis.output_server("3D_scatter")

README.md

3D Scatter demo with Plotrb

Plotrb render 3D scatter like above (rendered function: y=x*x+z*z).
You can rotate and zoom it with your mouse.
My work is based on hlvoorhees's scatter plot demo. (gist here)