initial commit

.gitignore

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+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+
+# rspec failure tracking
+.rspec_status

.rspec

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+--format documentation
+--color
+--require spec_helper

.travis.yml

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+---
+sudo: false
+language: ruby
+cache: bundler
+rvm:
+  - 2.6.5
+before_install: gem install bundler -v 2.0.2

Gemfile

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+source "https://rubygems.org"
+
+# Specify your gem's dependencies in triangle.gemspec
+gemspec
+
+group :development, :test do
+  gem 'rake', '< 14.0'
+  gem 'rspec'
+end
+
+gem "delaunator", "~> 0.1.0"
+
+gem "gradient"

Gemfile.lock

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+PATH
+  remote: .
+  specs:
+    triangle_pattern (0.1.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    coderay (1.1.2)
+    color (1.8)
+    delaunator (0.1.0)
+    diff-lcs (1.3)
+    gradient (0.5.1)
+      color (~> 1.8)
+      nokogiri (~> 1.6)
+    method_source (0.9.2)
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.8)
+      mini_portile2 (~> 2.4.0)
+    pry (0.12.2)
+      coderay (~> 1.1.0)
+      method_source (~> 0.9.0)
+    rake (13.0.1)
+    rspec (3.9.0)
+      rspec-core (~> 3.9.0)
+      rspec-expectations (~> 3.9.0)
+      rspec-mocks (~> 3.9.0)
+    rspec-core (3.9.0)
+      rspec-support (~> 3.9.0)
+    rspec-expectations (3.9.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.9.0)
+    rspec-mocks (3.9.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.9.0)
+    rspec-support (3.9.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 2.0)
+  delaunator (~> 0.1.0)
+  gradient
+  pry
+  rake (< 14.0)
+  rspec
+  triangle_pattern!
+
+BUNDLED WITH
+   2.0.2

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2019 Wolfgang Wohanka
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+[![Gem Version](https://badge.fury.io/rb/triangle_pattern.svg)](https://badge.fury.io/rb/triangle_pattern)
+
+<p align="center">
+ <img src="https://user-images.githubusercontent.com/19203626/75708200-4899d380-5cb8-11ea-9d3b-6dc83360c7bf.png" alt="TrianglePattern Logo"/>
+</p>
+
+With this gem you can generate placeholder images (e.g. Backgrounds, Profile Pics etc.) for your project. It uses the Delaunay triangulation to generate a mesh of triangles.
+
+| | |
+|:-------------------------:|:-------------------------:|
+|<img width="1604" alt="screen shot 2017-08-07 at 12 18 15 pm" src="https://user-images.githubusercontent.com/19203626/75802209-a7c11c00-5d7c-11ea-9b89-6ccc3a0c37a4.png">  |  <img width="1604" alt="screen shot 2017-08-07 at 12 18 15 pm" src="https://user-images.githubusercontent.com/19203626/75802265-bf98a000-5d7c-11ea-933f-750419ceb4c2.png">|<img width="1604" alt="screen shot 2017-08-07 at 12 18 15 pm" src="https://user-images.githubusercontent.com/19203626/75802434-f8387980-5d7c-11ea-872d-1aa4b679bb71.png"> |
+|<img width="1604" alt="screen shot 2017-08-07 at 12 18 15 pm" src="https://user-images.githubusercontent.com/19203626/75802471-09818600-5d7d-11ea-974d-2d19c8fd3979.png">  |  <img width="1604" alt="screen shot 2017-08-07 at 12 18 15 pm" src="https://user-images.githubusercontent.com/19203626/75802747-86146480-5d7d-11ea-96a7-0a616f6bb994.png"> |
+
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'triangle_pattern'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install triangle_pattern
+
+## Usage
+
+To create a pattern use:
+```ruby
+pattern = TrianglePattern.generate
+```
+
+with specific width and height:
+```ruby
+pattern = TrianglePattern.generate(width: 900, height: 500)
+```
+
+with a specific set of colors:
+```ruby
+pattern = TrianglePattern.generate(colors: ["#edf8fb", "#b2e2e2", "#66c2a4", "#2ca25f", "#006d2c"])
+```
+
+![image](https://user-images.githubusercontent.com/19203626/75806052-43558b00-5d83-11ea-8ae0-5f76d59127ed.png)
+
+get the pattern in svg:
+```ruby
+puts pattern.to_svg
+# => <svg xmlns="http://www.w3.org/2000/svg" ...
+```
+get the Base64 encoded string:
+```ruby
+puts pattern.to_base64
+# => PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC...
+```
+## Options
+
+You can pass several options to `TrianglePattern.generate`
+
+### width
+Integer, defaults to 900. Width in pixels of the pattern to generate.
+
+### height
+Integer, defaults to 500. Height in pixels of the pattern to generate.
+
+### cell_size
+Integer, defaults to 75. Size of the mesh used to generate triangles. Larger values will result in coarser patterns, smaller values will result in finer patterns.
+
+### variance
+Decimal value between 0 and 1, defaults to 0.75. Amount of randomness used when generating triangles.
+
+### seed
+Integer, defaults to 135. Is used to seed the random generator which generates the points for the mesh
+
+### colors
+
+Array, defaults to `["#ffffe5","#f7fcb9","#d9f0a3","#addd8e","#78c679","#41ab5d","#238443","#006837","#004529"]`. Defines the colors uses in the pattern. TrianglePattern interpolates between the given colors to generate a gradient.
+
+## Rake
+
+```ruby
+require 'triangle_pattern/triangle_task'
+
+TrianglePattern::TriangleTask.new(
+      name: 'generate',
+      description: '', data: {
+        'fixtures/BuGn.svg' => { colors: ["#edf8fb", "#b2e2e2", "#66c2a4", "#2ca25f", "#006d2c"], width: 400, height: 400, seed: 80 },
+        'fixtures/GnBu.svg' => { colors: ["#edf8fb", "#b3cde3", "#8c96c6", "#8856a7", "#810f7c"], width: 400, height: 400, seed: 90 },
+        'fixtures/OrRd.svg' => { colors: ["#fef0d9", "#fdcc8a", "#fc8d59", "#e34a33", "#b30000"], width: 400, height: 400, seed: 100 },
+        'fixtures/BrBG.svg' => { colors: ["#a6611a", "#dfc27d", "#f5f5f5", "#80cdc1", "#018571"], width: 400, height: 400, seed: 110 },
+      }
+    )
+  end
+```
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/triangle.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

Rakefile

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+require "bundler/gem_tasks"
+require "rspec/core/rake_task"
+
+module TempFixForRakeLastComment
+  def last_comment
+    last_description
+  end
+end
+Rake::Application.send :include, TempFixForRakeLastComment
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec
+
+unless ENV.key?('CI')
+  require 'triangle_pattern/triangle_task'
+
+  namespace :fixtures do
+    TrianglePattern::TriangleTask.new(
+      name: 'generate', description: '', data: {
+        'fixtures/BuGn.svg' => { colors: ["#edf8fb", "#b2e2e2", "#66c2a4", "#2ca25f", "#006d2c"], width: 400, height: 400, seed: 80 },
+        'fixtures/GnBu.svg' => { colors: ["#edf8fb", "#b3cde3", "#8c96c6", "#8856a7", "#810f7c"], width: 400, height: 400, seed: 90 },
+        'fixtures/OrRd.svg' => { colors: ["#fef0d9", "#fdcc8a", "#fc8d59", "#e34a33", "#b30000"], width: 400, height: 400, seed: 100 },
+        'fixtures/BrBG.svg' => { colors: ["#a6611a", "#dfc27d", "#f5f5f5", "#80cdc1", "#018571"], width: 400, height: 400, seed: 110 },
+      }
+    )
+  end
+end

bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "triangle_pattern"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+require "pry"
+Pry.start
+
+require "irb"
+IRB.start(__FILE__)

bin/setup

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+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here