class Gruff::Bullet

A bullet graph is a variation of a bar graph. en.wikipedia.org/wiki/Bullet_graph

Here’s how to set up a Gruff::Bullet.

g = Gruff::Bullet.new
g.title = 'Monthly Revenue'
g.data 75, 100, { target: 80, low: 50, high: 90 }
g.write('bullet.png')