IMxDrawDatabase::ObjectIdToObject
实体id返回实体对象,具体详细如下:
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。
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);
}
}
|