# File lib/geo_ruby/simple_features/point.rb, line 14
      def initialize(srid=DEFAULT_SRID,with_z=false,with_m=false)
        super(srid,with_z,with_m)
        @x=0.0
        @y=0.0
        @z=0.0 #default value : meaningful if with_z

        @m=0.0 #default value : meaningful if with_m

      end