Generate background pattern in Ruby

We will see how to generate a SVG background with triangle patterns in ruby to have something that look likes this:

At first, install the TrianglePattern gem:

$ gem install triangle_pattern

Then we only need a very short script with some simple options:

• an array of color (a gradient preferably) that we can generate with a website like https://cssgradient.io/
• the width and height of the image
• cell_size: size of the mesh used to generate triangles
• variance: amount of randomness used when generating triangles
• seed: seed of the random generator

require 'triangle_pattern'

pattern = TrianglePattern.generate(
  colors: ['#020024', '#6c1678', '#ff6400'],
  width: 1920,
  height: 1080,
  cell_size: 45,
  variance: 0.80,
  seed: 1337
)

File.open('background.svg', 'w') { |f| f.write(pattern.to_svg) }