Method: Geometry::Rotation#matrix

Defined in:
lib/aurora-geometry/rotation.rb

#matrix ⇒ Matrix (readonly)

Returns the transformation Matrix representing the Geometry::Rotation.

Returns:

Raises:

  • (ArgumentError) 


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# File 'lib/aurora-geometry/rotation.rb', line 80

def matrix
    return nil unless [@x, @y, @z].compact.size >= 2

    # Force all axes to be Vectors
    x,y,z = [@x, @y, @z].map {|a| a.is_a?(Array) ? Vector[*a] : a}

    # Force all axes to exist
    if x and y
	z = x ** y
    elsif x and z
	y = x ** z
    elsif y and z
	x = y ** z
    end

    rows = []
    [x, y, z].each_with_index {|a, i| rows.push(a.to_a) if i < @dimensions }

    raise ArgumentError, "Number of axes must match the dimensions of each axis" unless @dimensions == rows.size

    Matrix[*rows]
end