Perfect Shape 0.0.1

Geometric Algorithms

PerfectShape is a collection of pure Ruby geometric algorithms that are mostly useful for GUI (Graphical User Interface) manipulation like checking containment of a point in popular geometric shapes such as rectangle, square, arc, circle, polygon, polyline, and paths containing lines, bezier curves, and quadratic curves.

Additionally, PerfectShape::Math contains some purely mathematical algorithms.

To ensure high accuracy, this library does all its mathematical operations with BigDecimal numbers.

Setup

Run:

gem install perfect-shape -v 0.0.1

Or include in Bundler Gemfile:

gem 'perfect-shape', '~> 0.0.1'

And, run:

bundle

API

`PerfectShape::Math`

::degrees_to_radians(angle)
::radians_to_degrees(angle)
::ieee_remainder(x, y) (alias: ieee754_remainder)

`PerfectShape::Line`

::relative_ccw(x1, y1, x2, y2, px, py): Returns an indicator of where the specified point px,py lies with respect to the line segment from x1,y1 to x2,y2

`PerfectShape::Arc`

::new(type: :open, x: 0, y: 0, width: 1, height: 1, start: 0, extent: 360): constructs an arc of type :open (default), :chord, or :pie
#x: top-left x of arc
#y: top-left y of arc
#width: width of arc
#height: height of arc
#start: start angle in degrees
#extent: extent angle in degrees
#contain?(x_or_point, y=0): checks if point is in arc

TODO

TODO.md

Change Log

CHANGELOG.md

Contributing to perfect-shape

Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
Fork the project.
Start a feature/bugfix branch.
Commit and push until you are happy with your contribution.
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.

Copyright

MIT