public class AddRatesFromShapesTransformer implements ModelTransformer {
@Override
public Model transform(Model in) {
ShapeParameters sp = new ModelInfo(in.getLines()).getShapeParameters();
RateCalculator rc = new RateCalculator(sp);
Model out = new Model();
for(Statement line : in.getLines())
if (line instanceof Rule)
out.addStatement(addRate(rc, (Rule)line));