在网页中怎么绘制带宽度的样条线？

• 回答：

   mxOcx.Cal("Mx_ShowWeight");
      var param = mxOcx.NewResbuf();
      mxOcx.SendStringToExecuteFun("_DrawSpline", param);
      var retparam = mxOcx.GetEntitysLastCmd();
      if (retparam == null)
          return;
  
      if (retparam.Count == 0)
          return;
      var spline = retparam.AtObject(0);
      if (spline == null) {
          return;
      }
      spline.Lineweight = 40;