How to access parameters calculated in produce_imp from display_text_impl

Comments

• Matthias

  July 2021 edited July 2021

  Hi,

  The idea is to do the computation in "coerce_parameters_impl" (actually that is a generic callback executed whenever some other parameter changes) and not in "produce_impl". "produce_impl" is called to generate layout and not to compute parameters.

  In "display_text_impl" you can access the parameter by a member with the parameter's name.

  So for example, if you define a readonly parameter called "tot_length" which you want to compute from "l" and "n", use a "coerce_parameters_impl" function like this:

      def coerce_parameters_impl
        set_tot_length = n * l
      end
  

  and a "display_text_impl" like this:

      def display_text_impl
        "PCell (tot_length=%.12g)" % tot_length
      end
  

  Matthias
• JinWallner

  July 2021

  Thanks.