NXOpen创建基准面和实体的交线（合并交线）

　　　/// <summary>
        /// 创建基准面和实体的交线（合并交线）
        /// </summary>
        /// <param name="body"></param>
        /// <param name="dPlane"></param>
        /// <param name="iCurve"></param>
        public void CreateIntersectionCurveOfBodyAndDatumPlane(Body body, DatumPlane dPlane, out Curve iCurve)
        {
            try
            {
                NXOpen.Features.Feature nullFeatures_Feature = null;

                NXOpen.Features.SectionCurveBuilder sectionCurveBuilder1;
                sectionCurveBuilder1 = workPart.Features.CreateSectionCurveBuilder(nullFeatures_Feature);

                sectionCurveBuilder1.Associative = true;
                sectionCurveBuilder1.Tolerance = 0.0254;
                sectionCurveBuilder1.CurveFitJoinOptions.CurveJoinMethod = NXOpen.GeometricUtilities.CurveFitJoin.JoinMethod.Genernal;
               
                bool added1;
                added1 = sectionCurveBuilder1.ObjectsToSection.Add(body);

                bool added2;
                added2 = sectionCurveBuilder1.SectionPlanes.Add(dPlane);

                NXObject nXObject1;
                nXObject1 = sectionCurveBuilder1.Commit();

                iCurve = (Curve)((SectionCurve)nXObject1).GetEntities()[0];

                sectionCurveBuilder1.Destroy();

            }
            catch (Exception ex)
            {
                UI.GetUI().NXMessageBox.Show("Message", NXMessageBox.DialogType.Error, ex.Message);
                iCurve = null;
            }
        }