// the presentation should be recomputed if the previous AIS depend on the result
// [it should be hiddend] or the new AIS depend on it [it should be visualized]
Handle(PartSet_OperationPrs) anOperationPrs = getPresentation();
// the presentation should be recomputed if the previous AIS depend on the result
// [it should be hiddend] or the new AIS depend on it [it should be visualized]
Handle(PartSet_OperationPrs) anOperationPrs = getPresentation();