code: public ScenarioPortrayal createScenarioPortrayal() throws ShanksException {
          logger.fine("Creating Scenario Portrayal...");
          String dimensions = (String) this.getProperty(Scenario.SIMULATION_GUI);
          if (dimensions.equals(Scenario.SIMULATION_2D)) {
              logger.fine("Creating Scenario2DPortrayal");
              return this.createScenario2DPortrayal();
          } else if (dimensions.equals(Scenario.SIMULATION_3D)) {
              logger.fine("Creating Scenario3DPortrayal");
              return this.createScenario3DPortrayal();
          } else if (dimensions.equals(Scenario.NO_GUI)) {
              return null;
          }
          return null;
  
      }
docs: Create the scenario portrayal (2D o 3D).
  
  @return Scenario2DPortrayal or Scenario3DPortrayal object
  @throws DuplicatedPortrayalIDException
  @throws ScenarioNotFoundException