AnalysisRegionBase.Union 方法 (Int32, Int32, Int32, Int32)

项目
11/04/2008

将此 AnalysisRegionBase 的区域扩展为它与指定矩形合并所形成的区域。

命名空间： System.Windows.Ink.AnalysisCore
程序集： IACore（在 IACore.dll 中）

语法

声明
Public Sub Union ( _
    left As Integer, _
    top As Integer, _
    right As Integer, _
    bottom As Integer _
)
用法
Dim instance As AnalysisRegionBase
Dim left As Integer
Dim top As Integer
Dim right As Integer
Dim bottom As Integer

instance.Union(left, top, right, bottom)

public void Union(
    int left,
    int top,
    int right,
    int bottom
)

public:
void Union(
    int left, 
    int top, 
    int right, 
    int bottom
)

public void Union(
    int left,
    int top,
    int right,
    int bottom
)

public function Union(
    left : int, 
    top : int, 
    right : int, 
    bottom : int
)

参数

left
类型：System.Int32
要与之合并的矩形的左边界（以墨迹空间坐标表示）。

top
类型：System.Int32
要与之合并的矩形的上边界（以墨迹空间坐标表示）。

right
类型：System.Int32
要与之合并的矩形的右边界（以墨迹空间坐标表示）。

bottom
类型：System.Int32
要与之合并的矩形的下边界（以墨迹空间坐标表示）。

备注

所有参数都采用 HIMETRIC 单位。

如果任一个区域无限，则新区域也无限。

示例

该示例使用 Exclude、Intersect 和 Union 修改现有 AnalysisRegionBase（名为 theFirstAnalysisRegionBase）的区域。

' Extend an AnalysisRegionBase using the Union method and
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Union(theSecondAnalysisRegionBase)

' Extend an AnalysisRegionBase using the Union method and a rectangle.
theFirstAnalysisRegionBase.Union(0, 500, 3000, 3500)

' Restrict an AnalysisRegionBase using the Intersect method and
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Intersect(theSecondAnalysisRegionBase)

' Restrict an AnalysisRegionBase using the Intersect method and a rectangle.
theFirstAnalysisRegionBase.Intersect(1000, 1000, 5000, 5000)

' Restrict an AnalysisRegionBase using the Exclude method and
' an AnalysisRegionBase.
theFirstAnalysisRegionBase.Exclude(theSecondAnalysisRegionBase)

' Modify an AnalysisRegionBase using the Exclude method and a rectangle.
theFirstAnalysisRegionBase.Exclude(1500, 1500, 2500, 2500)

// Extend an AnalysisRegionBase using the Union method and
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Union(theSecondAnalysisRegionBase);

// Extend an AnalysisRegionBase using the Union method and a rectangle.
theFirstAnalysisRegionBase.Union(0, 500, 3000, 3500);

// Restrict an AnalysisRegionBase using the Intersect method and
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Intersect(theSecondAnalysisRegionBase);

// Restrict an AnalysisRegionBase using the Intersect method and a rectangle.
theFirstAnalysisRegionBase.Intersect(1000, 1000, 5000, 5000);

// Restrict an AnalysisRegionBase using the Exclude method and
// an AnalysisRegionBase.
theFirstAnalysisRegionBase.Exclude(theSecondAnalysisRegionBase);

// Modify an AnalysisRegionBase using the Exclude method and a rectangle.
theFirstAnalysisRegionBase.Exclude(1500, 1500, 2500, 2500);