# File lib/geo_ruby/simple_features/envelope.rb, line 126
      def self.from_coordinates(points,srid=DEFAULT_SRID,with_z=false)
        e = Envelope.new(srid,with_z)
        e.lower_corner, e.upper_corner =  points.collect{|point_coords| Point.from_coordinates(point_coords,srid,with_z)}
        e
      end