草图偏置曲线返回的OBJECT无法用日志拉升

smalfly11

这是录的日志里草图偏置曲线里的
NXObject nXObject2;
    nXObject2 = skeTChOffsetBuilder1.Commit();
   
$ Y+ m8 t8 U4 ~) X    NXObject[] objects1;
    objects1 = sketchOffsetBuilder1.GetCommittedObjects();
我返回了nXObject2;
并录制了一个草图拉伸的日志 里面这么写的
NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
    NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
    features1[0] = sketchFeature1;
    Sketch sketch1 =(Sketch)workPart.Sketches.FindObject("SKETCH_00SKETCH_000");
    Line line1 = (Line)sketch1.FindObject("Curve Line4");
( H% A" `5 e( A    Curve nullCurve = null;
7 t. z' z( q0 P# ^; U    CurveFeatureChainRule curveFeatureChainRule1;
+ ^  W& M6 `6 K( \- m  T    curveFeatureChainRule1 = workPart.ScRuleFactory.CreateRuleCurveFeatureChain(features1, line1, nullCurve, false, 0.00095);
  ?: d9 R  A8 f9 U9 b3 ^   
    section1.AllowSelfIntersection(true);
   
. Q: a0 Q: ~3 J4 g2 n/ ~    SelectionIntentRule[] rules1 = new SelectionIntentRule[1];
    rules1[0] = curveFeatureChainRule1;
; f$ y: w0 b, A! R6 |6 @    NXObject nullNXObject = null;
# w7 c9 ?( o( k  u4 H7 t& f; R    Point3d helpPoint1 = new Point3d(-18.8530653857088, 21.736029640554, 0.0);
    section1.AddToSection(rules1, line1, nullNXObject, nullNXObject, helpPoint1, NXOpen.Section.Mode.Create, false);
% ?7 e# T1 X! p. T: q+ x我把NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
' }! H) f0 u( }7 y% I/ J改成了NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)nXObject2；
/ h% Q/ e1 S2 b+ e5 B3 Y% D( g. p/ c0 F它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.features.sketchfeature;

再录一段没有草图的拉伸
  o& \' q( r4 k8 x/ b; ~ NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
* J# u& c- \, l1 C    NXOpen.Features.OffsetCurve offsetCurve1 = (NXOpen.Features.OffsetCurve)nXObject2;//在这写了nXObject2
    features1[0] = offsetCurve1;
    workPart.Features.SuppressFeatures(features1);
3 }) ?) H) W1 D$ a& i, E5 a它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.Features.OffsetCurve;

求高手告诉我下怎么转换