Rect.Union 方法

public:
 void Union(System::Windows::Point point);

public void Union(System.Windows.Point point);

member this.Union : System.Windows.Point -> unit

Public Sub Union (point As Point)

参数

示例

下面的示例演示如何使用 Union(Point) 该方法完全扩展当前矩形以包含给定 Point的矩形。

private Rect unionExample1()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // The Union method expands the current rectangle exactly enough to contain 
    // the specified point. myRectangle expands to a location of 0,0 and a size
    // of 210,55.
    myRectangle.Union(new Point(0,0));

    // Returns 0,0,210,55
    return myRectangle;
}

另请参阅

• Contains(Point)

public:
 void Union(System::Windows::Rect rect);

public void Union(System.Windows.Rect rect);

member this.Union : System.Windows.Rect -> unit

Public Sub Union (rect As Rect)

参数

示例

下面的示例演示如何使用 Union(Rect) 该方法完全扩展当前矩形，以包含指定的矩形。

private Rect unionExample2()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Create second rectangle.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(0, 0);
    myRectangle2.Size = new Size(200, 50);

    // The Union method expands the current rectangle exactly enough to contain 
    // the specified rectangle. myRectangle expands to a location of 0,0 and a size
    // of 210,55.
    myRectangle.Union(myRectangle2);

    // Returns 0,0,210,55
    return myRectangle;
}

另请参阅

• Contains(Rect)

public:
 static System::Windows::Rect Union(System::Windows::Rect rect, System::Windows::Point point);

public static System.Windows.Rect Union(System.Windows.Rect rect, System.Windows.Point point);

static member Union : System.Windows.Rect * System.Windows.Point -> System.Windows.Rect

Public Shared Function Union (rect As Rect, point As Point) As Rect

参数

返回

一个大小恰好足以包含指定矩形和指定点的矩形。

示例

下面的示例演示如何使用 Union(Rect, Point) 该方法创建一个大小刚好足以包含给定矩形和给定 Point矩形的矩形。

private Rect unionExample3()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Create second rectangle.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(0, 0);
    myRectangle2.Size = new Size(200, 50);

    // The Union method expands the current rectangle exactly enough to contain 
    // the specified rectangle and the specified Point. In this example, returnRect 
    // expands to a location of 0,0 and a size of 250,60.
    Rect returnRect = Rect.Union(myRectangle2, new Point(250,60));

    // Returns 0,0,250,60
    return returnRect;
}

另请参阅

• Contains(Point)

public:
 static System::Windows::Rect Union(System::Windows::Rect rect1, System::Windows::Rect rect2);

public static System.Windows.Rect Union(System.Windows.Rect rect1, System.Windows.Rect rect2);

static member Union : System.Windows.Rect * System.Windows.Rect -> System.Windows.Rect

Public Shared Function Union (rect1 As Rect, rect2 As Rect) As Rect

参数

返回

生成的矩形。

示例

下面的示例演示如何使用 Union(Rect, Rect) 该方法创建一个大小刚好足以包含两个给定矩形的矩形。

private Rect unionExample4()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Create second rectangle.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(0, 0);
    myRectangle2.Size = new Size(200, 50);

    // Create a third rectangle.
    Rect myRectangle3 = new Rect();
    myRectangle3.Location = new Point(210, 60);
    myRectangle3.Size = new Size(50, 50);

    // The Union method expands the current rectangle exactly enough to contain 
    // the two specified rectangles. In this example, returnRect expands to 
    // a location of 0,0 and a size of 260,110.
    Rect returnRect = Rect.Union(myRectangle2, myRectangle3);

    // Returns 0,0,260,110
    return returnRect;
}

另请参阅

• Contains(Rect)