Module: VisiLibity

Defined in:
lib/visilibity.rb

Defined Under Namespace

Classes: Angle, BoundingBox, Environment, Guards, LineSegment, Point, PolarPoint, Polygon, Polyline, Ray, VisibilityGraph, VisibilityPolygon

Class Method Summary collapse

Class Method Details

.Inspectors(*fake_ivars) ⇒ Object 



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# File 'lib/visilibity.rb', line 20

def self.Inspectors(*fake_ivars)
  Module.new do
    define_method :inspect do
      ivar_str = fake_ivars.map{|iv| "@#{iv}=#{send(iv).inspect}"}.join(" ")
      "#<%s:0x%x %s>" % [self.class.name, object_id, ivar_str]
    end
  end
end

.SwigEnumerable(size_method = :size) ⇒ Object

Enables enumeration over Swig collections implementing size_method and index().



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# File 'lib/visilibity.rb', line 8

def self.SwigEnumerable(size_method=:size)
  Module.new do
    include Enumerable
    # Must eval a string here because #each takes a block. Oh bother.
    class_eval <<-RUBY
      def each
        (0...#{size_method}).each{|i| yield self.index(i)}
      end
    RUBY
  end
end