// recompute 3D when a locale triangle hypo changes (see PAL7428).
// So we check if mesh is really present
//bool computeOk = (sm->GetComputeState() == COMPUTE_OK);
- bool computeOk = ( ds && ds->GetNodes()->more() );
+ bool computeOk = ( ds && ( ds->GetNodes()->more() || ds->GetElements()->more() ));
if (!computeOk)
{
const TopoDS_Shape & ss = sm->GetSubShape();