// CHECK NUMERIC TRANSFORMER THRESHOLDS
for (Leaf l: plan.getTree().getRoot().getAllLeaves()) {
eu.planets_project.pp.plato.model.transform.Transformer t = l.getTransformer();
if (t != null && t instanceof NumericTransformer) {
NumericTransformer nt = (NumericTransformer) t;
if (!nt.checkOrder()) {
StringBuffer sb = new StringBuffer("NUMERICTRANSFORMER THRESHOLD ERROR ");
sb.append(l.getName())
.append("::NUMERICTRANSFORMER:: ");
sb.append(nt.getThreshold1()).append(" ")
.append(nt.getThreshold2()).append(" ")