code: def to_wkt(options = {})
        writer = WktWriter.new
  
        # Older versions of the Geos library don't allow for options here.
        args = if WktWriter.instance_method(:write).arity < -1
          [ options ]
        else
          []
        end
  
        ret = ''.dup
  
        if options[:include_srid]
          srid = if options[:srid]
            options[:srid]
          else
            self.srid
          end
  
          ret << "SRID=#{srid};"
        end
  
        ret << writer.write(self, *args)
        ret
      end
docs: Spits the geometry out into WKT. You can specify the :include_srid
   option to create a PostGIS-style EWKT output.