private void DoSplitCurves() { MxDrawUtility mxUtility = new MxDrawUtility(); object getPt; MxDrawEntity ent = mxUtility.GetEntity(out getPt, "选择打断的曲线:"); if (ent == null) return; MxDrawCurve curve; if (ent is MxDrawCurve) { curve = (MxDrawCurve)ent; } else { MessageBox.Show("实体类型不对"); return; } MxDrawPoint getPt1 = (MxDrawPoint)(mxUtility.GetPoint(null, "点取打断位置:")); if (getPt1 == null) { MessageBox.Show("用户取消.."); return; } MxDrawResbuf param = new MxDrawResbuf(); param.AddPoint(getPt1, -10); object objId; if (curve.SplitCurves(param,out objId)) { MxDrawResbuf rbId = (MxDrawResbuf)objId; MessageBox.Show("打断成功，生成的曲线个数:" + rbId.Count); // 把以前的删除掉。 ent.Erase(); } else { MessageBox.Show("打断失败"); } } | 
