Uses GithubStats to grab Github contributions scores and converts that into an SVG

Adds simple HTML snippets into Prawn-generated PDFs. All elements are layouted vertically using Prawn's formatting options. A major use case for this gem is to include WYSIWYG-generated HTML parts into server-generated PDF documents.

Universal S-expression parser with specific support for Common Lisp, Scheme, and RDF/SPARQL

A Ruby library for prying open files you can convert to a previewable format, such as video, image and audio files. It includes a number of parser modules that try to recover metadata useful for post-processing and layout while reading the absolute minimum amount of data possible.

Glimmer DSL for SWT (JRuby Desktop Development Cross-Platform Native GUI Framework) is a native-GUI cross-platform desktop development library written in JRuby, an OS-threaded faster JVM version of Ruby. It includes SWT 4.30 (released on December 1, 2023). Glimmer's main innovation is a declarati...

Ruby version of the calculations from various books like Celestial Calculations by J. L. Lawrence, Practical Astronomy with your Calculator or Spreadsheet by Peter Duffett-Smith and Jonathan Zwart, or Astronomical Algorithms by Jean Meeus

A Ruby implemenation of the well-known graph library called "networkx".

Red Colors provides a wide array of features for dealing with colors. This includes conversion between colorspaces, desaturation, and parsing colors.

giblish generates indexed and searchable documents from a tree of asciidoc files.

Mindee's fork of Origami, a pure Ruby library to parse, modify and generate PDF documents.

Perfect Shape is a collection of pure Ruby geometric algorithms that are mostly useful for GUI manipulation like checking viewport rectangle intersection or containment of a mouse click point in popular geometry shapes such as rectangle, square, arc (open, chord, and pie), ellipse, circle, polygo...

A thin wrapper above Prawn that makes it easier to build compentized PDFs

Ruby library for creating Swiss QR-Bills as PDF with Prawn

SolidRuby is a framework for programming OpenScad models in Ruby. \ Inspired by CrystalScad and SolidPython, based on CrystalScad and RubyScad

This gem is a Ruby implementation of the Schulze voting method (using Floyd–Warshall algorithm), a type of the Condorcet voting methods.

handle Polyline object on ActiveRecord

Administrador - The rails administration interface.

Common tools for the Belts game engine

Modular components to encapsulate data and markup in Prawn

It includes maths, datetime, and rspec access test libraries.