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
) Q$ X* p  n3 L' ]0 X7 RNXObject nXObject2;
    nXObject2 = skeTChOffsetBuilder1.Commit();
$ H6 f- T% |* P1 y   
, s- y6 }. _% f0 Q" m    NXObject[] objects1;
& k* C$ x0 G/ G3 m8 b    objects1 = sketchOffsetBuilder1.GetCommittedObjects();
6 \$ K: [1 n; Y! ~$ ?我返回了nXObject2;
6 z% G+ g6 w' S并录制了一个草图拉伸的日志 里面这么写的
6 x: t7 k: L% v' ~; p0 q4 l8 INXOpen.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");
" W& U0 T4 v5 i: F    Curve nullCurve = null;
  h  e+ @" b1 I/ P) v4 H    CurveFeatureChainRule curveFeatureChainRule1;
    curveFeatureChainRule1 = workPart.ScRuleFactory.CreateRuleCurveFeatureChain(features1, line1, nullCurve, false, 0.00095);
   
    section1.AllowSelfIntersection(true);
   
9 D4 `4 x- K4 v$ Q# g6 i% w/ n    SelectionIntentRule[] rules1 = new SelectionIntentRule[1];
6 U4 V4 G3 L: G  L. m    rules1[0] = curveFeatureChainRule1;
% r# ?6 \8 n2 z# k+ l    NXObject nullNXObject = null;
; l, k* ]0 m% i( a/ o/ [5 j    Point3d helpPoint1 = new Point3d(-18.8530653857088, 21.736029640554, 0.0);
! o, k7 x0 q( s/ h+ F    section1.AddToSection(rules1, line1, nullNXObject, nullNXObject, helpPoint1, NXOpen.Section.Mode.Create, false);
我把NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
改成了NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)nXObject2；
6 O( A: l6 m- a* u( T: R6 H; W它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.features.sketchfeature;
: E4 B- F! q% e5 R1 v
1 |) A. B, T0 o7 }2 A9 ~7 |再录一段没有草图的拉伸
NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
    NXOpen.Features.OffsetCurve offsetCurve1 = (NXOpen.Features.OffsetCurve)nXObject2;//在这写了nXObject2
    features1[0] = offsetCurve1;
    workPart.Features.SuppressFeatures(features1);
它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.Features.OffsetCurve;

+ t+ h' y' w* p- G3 s求高手告诉我下怎么转换