code: @Override
      public void setScale(IReactionSet reactionSet) {
          double bondLength = AverageBondLengthCalculator.calculateAverageBondLength(reactionSet);
          double scale = this.calculateScaleForBondLength(bondLength);
  
          // store the scale so that other components can access it
          this.rendererModel.getParameter(Scale.class).setValue(scale);
      }
docs: Set the scale for an IReactionSet. It calculates the average bond length
  of the model and calculates the multiplication factor to transform this
  to the bond length that is set in the RendererModel.
  
  @param reactionSet