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
( l3 {7 l# M1 iNXObject nXObject2;
; t, \* l  w, E$ y3 w    nXObject2 = skeTChOffsetBuilder1.Commit();
# Y3 K% u2 o! o  J   
    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
6 O' e+ c& a7 \" W0 F/ R6 uNXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
  x( V* s" q1 E9 H6 B6 s    NXOpen.Features.SketchFeature sketchFeature1 = (NXOpen.Features.SketchFeature)workPart.Features.FindObject("SKETCH(16)");
" d: Y- B2 v( F% m) s    features1[0] = sketchFeature1;
, H* Y5 P. T4 O    Sketch sketch1 =(Sketch)workPart.Sketches.FindObject("SKETCH_00SKETCH_000");
) b/ w& I' T: i6 ?    Line line1 = (Line)sketch1.FindObject("Curve Line4");
: i" O7 l7 Q6 B    Curve nullCurve = null;
5 l5 b$ m. [! v3 h6 x    CurveFeatureChainRule curveFeatureChainRule1;
& f* T4 A3 g; Z8 u6 R# l  j    curveFeatureChainRule1 = workPart.ScRuleFactory.CreateRuleCurveFeatureChain(features1, line1, nullCurve, false, 0.00095);
: Y- q3 h" H( N8 B4 q   
) M' ^( u7 Z2 C6 K$ g" G    section1.AllowSelfIntersection(true);
   
4 A- _& x% y* l. Q' B* Y; X. o    SelectionIntentRule[] rules1 = new SelectionIntentRule[1];
    rules1[0] = curveFeatureChainRule1;
    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);
( p/ V( P- U4 t& M; I% A3 e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；
( ^$ ~. |4 w4 V9 d' g$ I8 o! d+ n; W1 x它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.features.sketchfeature;

& i; ?: K0 V# d再录一段没有草图的拉伸
! M, e. y2 m8 H( Z8 S0 R- p1 [8 Z8 s' Y NXOpen.Features.Feature[] features1 = new NXOpen.Features.Feature[1];
    NXOpen.Features.OffsetCurve offsetCurve1 = (NXOpen.Features.OffsetCurve)nXObject2;//在这写了nXObject2
% y+ r( O; I% Z$ e0 W6 L  g    features1[0] = offsetCurve1;
    workPart.Features.SuppressFeatures(features1);
它报错说无法将 NXOpen.sketchoffset强制转换成NXOpen.Features.OffsetCurve;

4 x# d' q  g4 o6 O求高手告诉我下怎么转换