CAD在网页绘一个直线，得到直线id,再调该得到直线对象，然写扩展数据

IMxDrawDatabase::ObjectIdToObject


实体id返回实体对象。


参数 说明

[in] LONGLONG lId

实体id


JS代码，中绘一个直线，得到直线id,再调该得到直线对象，然写扩展数据的例子。


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   function DoCommandEventFunc(iCmd)
{
        if (iCmd == 1)
        {
        var mxOcx = document.all.item("MxDrawXCtrl");
                mxOcx.focus();
        var point1 = mxOcx.GetPoint(null,"n 点取开始点:");
        if(point1 == null)
        {
            return;
        }
        var point2 = mxOcx.GetPoint(point1,"n 点取结束点:");
        if(point1 == null)
        {
            return;
        }
                // 直线的id
                var lineId = mxOcx.DrawLine(point1.x,point1.y,point2.x,point2.y);
 
                // 为新写的直线写一个字符串扩展数据
                var database = mxOcx.GetDatabase();
                var ent = database.ObjectIdToObject(lineId);
 
                 if(ent == null)
               {
                  return;
               }
            var exData = mxOcx.Call("Mx_NewResbuf","");
            exData.AddString("TestApp",1001);
                exData.AddString("用户的扩展数据内容。。。",1000);
            ent.SetXData(exData);
 
    }
}
              

posted on 2019-06-05 14:22  梦想CAD控件  阅读(167)  评论(0)    收藏  举报

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