Session* theSession = Session::GetSession();

    Part* workPart(theSession->Parts()->Work());

    UI* theUI = UI::GetUI();

    CAM::CylinderMillingBuilder* cylinderMillingBuilder1;

    cylinderMillingBuilder1 = workPart->CAMSetup()->CAMOperationCollection()->CreateCylinderMillingBuilder(dynamic_cast<CAM::CylinderMilling*>(theUI->SelectionManager()->GetSelectedTaggedObject(0)));

    CAM::HoleMachiningCutParameters* holeMachiningCutParameters1;

    holeMachiningCutParameters1 = cylinderMillingBuilder1->CuttingParameters();

    CAM::FBM::FeatureGeometry* featureGeometry1;

    featureGeometry1 = cylinderMillingBuilder1->GetFeatureGeometry();

    CAM::FBM::MachiningFeatureGeometry* machiningFeatureGeometry1(dynamic_cast<CAM::FBM::MachiningFeatureGeometry*>(featureGeometry1));

    CAM::GeometrySetList* geometrySetList1;

    geometrySetList1 = machiningFeatureGeometry1->GeometryList();

    for (int i = 0; i < geometrySetList1->Length(); i++)

    {

        CAM::FBM::FeatureSet* featureSet;

        featureSet = machiningFeatureGeometry1->GetFeatureSet(i);

        CAM::FBM::Feature* feature;

        feature = featureSet->GetFeature();

        feature->OverrideAttributeValue("START_DIAMETER", feature->GetAttributeDoubleValue("DIAMETER_1"));

        //p(feature->GetAttributeDoubleValue("DIAMETER_1"));//直径

        p(feature->GetAttributeDoubleValue("START_DIAMETER"));//起始直径

    }

    NXObject* nXObject1;

    nXObject1 = cylinderMillingBuilder1->Commit();

    cylinderMillingBuilder1->Destroy();