Tree Plotter

This is a simple Ruby algorithm that plots a tree based in a Hash.

Example:

tree = {
  label: 'Parent label',
  children: [
    { label: 'Child label 1', children: [] },
    { label: 'Child label 2', children: [] },
    { label: 'Child label 3', children: [] }
  ]
}

Plotter.plot_tree(tree)
# =>
# Parent label
# ├─ Child label 1
# ├─ Child label 2
# └─ Child label 3

It supports more levels of nesting and adds a connectiong line between siblings:

Parent label
├─ Child label 1
│  ├─ Granchild label 1
│  │  ├─ Grangranchild label 1
│  │  └─ Grangranchild label 2
│  ├─ Granchild label 2
│  └─ Granchild label 3
└─ Child label 2
   ├─ Granchild label 1
   │  ├─ Grangranchild label 1
   │  └─ Grangranchild label 2
   ├─ Granchild label 2
   └─ Granchild label 3

Running the tests

ruby plotter_test.rb

TODO:

• Add documentation
• Improve class / module names (Plotter is too generic)