IMxDrawEntity::GetBoundingBox 方法

返回实体的最小矩形框外包

IDL

[helpstring("method GetBoundingBox")]
HRESULT GetBoundingBox([out] IMxDrawPoint** minPoint, [out] IMxDrawPoint** maxPoint);

参数

参数	说明
[out] IMxDrawPoint** minPoint	外包框的左下角点
[out] IMxDrawPoint** maxPoint	外包框的右上角点

备注

例如: VB.net代码

        Dim mxUtility As MxDrawXLib.MxDrawUtility
        mxUtility = New MxDrawXLib.MxDrawUtility


        Dim ent As MxDrawXLib.MxDrawEntity
        ent = mxUtility.GetEntity(Nothing, Chr(13) + Chr(10) + "选择对象:")

        If (ent Is Nothing) Then
            Exit Sub
        End If

        Dim minPt As MxDrawXLib.MxDrawPoint
        Dim maxPt As MxDrawXLib.MxDrawPoint
        ent.GetBoundingBox(minPt, maxPt)

        If (minPt Is Nothing) Then
            Exit Sub
        End If


        // 求出选择对象的中心点
        Dim dX, dY As Double

        dX = minPt.x + (maxPt.x - minPt.x) / 2.0
        dY = minPt.y + (maxPt.y - minPt.y) / 2.0

参见其它

IMxDrawEntity 方法

请参见

IMxDrawEntity 接口, IMxDrawEntity 成员, IMxDrawEntity 方法

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