hdemon/blf

An implementation of Bottom-Left method for 2-Dimensional Strip Packing Problem.

BLF

詰め込み問題のBLF法の実装

This is an implementation of Bottom-Left method for 2-Dimensional Strip Packing Problem.

Installation

Add this line to your application's Gemfile:

gem 'blf'

And then execute:

$ bundle

Or install it yourself as:

$ gem install blf

Usage

require "blf"

# create the world.
world = BLF.create_world width: 500, height: 500

# add a block with coordinates.
world.add_block_with_location x: 60, y: 0, width: 50, height: 50

(1..50).each do |n|
  w = Random.new(Random.new_seed).rand * 100 + 10
  h = Random.new(Random.new_seed).rand * 100 + 10
  # add a block without coordinates. this becomes a target of allocation.
  world.add_block width: w, height: h
end

# do allocation to all the blocks without coordinates.
world.allocate_all

world.draw

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request