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
4 {2 z9 F* S$ f3 C2 B( ^3 TNXObject nXObject2;
7 Y( f+ P& e( J) Z6 e    nXObject2 = skeTChOffsetBuilder1.Commit();
   
) C9 B2 u: v8 \3 Z1 p2 y    NXObject[] objects1;
' I, \3 M5 L: Q8 i    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];
: j, _4 _  C* j9 ~9 {, J9 W6 g    NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
( q2 i: Z& F( E1 i" a    features1[0] = sketchFeature1;
4 Q% g5 ?* |1 z2 M# d  d: y! ~; l    Sketch sketch1 =(Sketch)workPart.Sketches.FindObject("SKETCH_00SKETCH_000");
4 o3 ^# E" h/ f# W+ Z3 R    Line line1 = (Line)sketch1.FindObject("Curve Line4");
    Curve nullCurve = null;
    CurveFeatureChainRule curveFeatureChainRule1;
, \+ e; ?- E* f5 E    curveFeatureChainRule1 = workPart.ScRuleFactory.CreateRuleCurveFeatureChain(features1, line1, nullCurve, false, 0.00095);
   
) j9 I0 T  g& b8 Z4 m* E( Z* L    section1.AllowSelfIntersection(true);
! L; E; ~$ v: n. L6 l   
/ X2 M0 H8 s( y; I" A. O    SelectionIntentRule[] rules1 = new SelectionIntentRule[1];
    rules1[0] = curveFeatureChainRule1;
8 A+ c$ Q6 j& `1 y    NXObject nullNXObject = null;
    Point3d helpPoint1 = new Point3d(-18.8530653857088, 21.736029640554, 0.0);
    section1.AddToSection(rules1, line1, nullNXObject, nullNXObject, helpPoint1, NXOpen.Section.Mode.Create, false);
, g, Z' l: {/ i我把NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
* ~8 D, d' f1 j# G5 \8 {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;
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再录一段没有草图的拉伸
NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
. n1 L4 H" D: h% ~$ n% z# ~    NXOpen.Features.OffsetCurve offsetCurve1 = (NXOpen.Features.OffsetCurve)nXObject2;//在这写了nXObject2
    features1[0] = offsetCurve1;
& f' f  u$ K7 y+ J( e1 Z    workPart.Features.SuppressFeatures(features1);
' h1 L# o% y( h1 H+ z它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.Features.OffsetCurve;
1 z9 ]/ c% f2 ]) _! {4 _5 `: A
求高手告诉我下怎么转换