Fixed bug in radius search which was limiting it to the number of

dimensions instead of the number of points.

Author: translunar

src/ruby/lib/flann/index.rb

@@ -109,7 +109,7 @@ def nearest_neighbors testset, k, parameters = {}
 
     # Perform a radius search on a single query point
     def radius_search query, radius, max_k=nil, parameters = {}
-      max_k    ||= dataset.shape[1]
+      max_k    ||= dataset.shape[0]
       parameters = Parameters.new(Flann::Parameters::DEFAULT.merge(parameters))
 
       self.build! if index_ptr.nil?