Method: Geometry::Rotation#initialize

Defined in:
lib/geometry/rotation.rb

#initialize(options = {}) ⇒ Rotation

Returns a new instance of Rotation.

Parameters:

  • options (Hash) —

    a customizable set of options



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# File 'lib/geometry/rotation.rb', line 41

def initialize(*args)
    options, args = args.partition {|a| a.is_a? Hash}
    options = options.reduce({}, :merge)

    @dimensions = options[:dimensions] || nil

    axis_options = [options[:x], options[:y], options[:z]]
    all_axes_options = [options[:x], options[:y], options[:z]].select {|a| a}
    if all_axes_options.count != 0
  @x = options[:x] || nil
  @y = options[:y] || nil
  @z = options[:z] || nil

  raise ArgumentError, "All axis options must be Vectors" unless all_axes_options.all? {|a| a.is_a?(Vector) or a.is_a?(Array) }

  raise ArgumentError, "All provided axes must be the same size" unless all_axes_options.all? {|a| a.size == all_axes_options.first.size}

  @dimensions ||= all_axes_options.first.size

  raise ArgumentError, "Dimensionality mismatch" unless all_axes_options.first.size <= @dimensions
  if all_axes_options.first.size < @dimensions
      @x, @y, @z = [@x, @y, @z].map {|a| (a && (a.size != 0) && (a.size < @dimensions)) ? Array.new(@dimensions) {|i| a[i] || 0 } : a }
  end

  raise ArgumentError, "Too many axes specified (expected #{@dimensions - 1} but got #{all_axes_options.size}" unless all_axes_options.size == (@dimensions - 1)
    end
end