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
' f# e. `& a$ d+ t2 G: \0 HNXObject nXObject2;
: G  {% r! }+ v2 f+ A0 N    nXObject2 = skeTChOffsetBuilder1.Commit();
   
7 Q, @7 a$ I; }    NXObject[] objects1;
    objects1 = sketchOffsetBuilder1.GetCommittedObjects();
3 z) X( n6 v  b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)");
3 ?9 q. g! R, d3 D4 Y    features1[0] = sketchFeature1;
+ y: s7 I& k# d5 I8 ~    Sketch sketch1 =(Sketch)workPart.Sketches.FindObject("SKETCH_00SKETCH_000");
    Line line1 = (Line)sketch1.FindObject("Curve Line4");
- X) r; L( F" ]+ G  H    Curve nullCurve = null;
% y& r  x& M+ j. T- _& a    CurveFeatureChainRule curveFeatureChainRule1;
    curveFeatureChainRule1 = workPart.ScRuleFactory.CreateRuleCurveFeatureChain(features1, line1, nullCurve, false, 0.00095);
+ x) b0 Y( h/ f' p) o1 L   
    section1.AllowSelfIntersection(true);
+ n, T% N1 C7 z: x: v% m. Z( v9 u   
    SelectionIntentRule[] rules1 = new SelectionIntentRule[1];
    rules1[0] = curveFeatureChainRule1;
    NXObject nullNXObject = null;
9 q7 E! H6 D3 j' }# X  Q    Point3d helpPoint1 = new Point3d(-18.8530653857088, 21.736029640554, 0.0);
    section1.AddToSection(rules1, line1, nullNXObject, nullNXObject, helpPoint1, NXOpen.Section.Mode.Create, false);
: r1 b& h9 j3 s' g# {我把NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
" y2 @0 }4 X8 k* ]+ N0 ]3 |  r改成了NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)nXObject2；
它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.features.sketchfeature;
/ S; W9 O" d+ l/ D+ b% r
再录一段没有草图的拉伸
' F# @' W* M2 i+ `' l/ j# W NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
2 O: Z4 Z! z% t$ K    NXOpen.Features.OffsetCurve offsetCurve1 = (NXOpen.Features.OffsetCurve)nXObject2;//在这写了nXObject2
" `8 O* G( Q. ~9 c2 Q5 O* ~    features1[0] = offsetCurve1;
0 v5 s/ ]" V$ }( r- v. v    workPart.Features.SuppressFeatures(features1);
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