Rectangle.Union(Rectangle, Rectangle) Yöntem

public:
 static System::Drawing::Rectangle Union(System::Drawing::Rectangle a, System::Drawing::Rectangle b);

public static System.Drawing.Rectangle Union (System.Drawing.Rectangle a, System.Drawing.Rectangle b);

static member Union : System.Drawing.Rectangle * System.Drawing.Rectangle -> System.Drawing.Rectangle

Public Shared Function Union (a As Rectangle, b As Rectangle) As Rectangle

Parametreler

Döndürülenler

İki RectangleRectangle yapının birleşimini sınırlayan bir yapı.

Örnekler

Aşağıdaki kod örneğinde yönteminin nasıl kullanılacağı gösterilmektedir Union . Bu örnek bir Windows Formu ile kullanılmak üzere tasarlanmıştır. Bu kodu bir forma yapıştırın ve formun ShowRectangleUnionPaint olayını işlerken yöntemini olarak geçirin ePaintEventArgs.

private:
   void ShowRectangleUnion( PaintEventArgs^ e )
   {
      // Declare two rectangles and draw them.
      Rectangle rectangle1 = Rectangle(30,40,50,100);
      Rectangle rectangle2 = Rectangle(50,60,100,60);
      e->Graphics->DrawRectangle( Pens::Sienna, rectangle1 );
      e->Graphics->DrawRectangle( Pens::BlueViolet, rectangle2 );

      // Declare a third rectangle as a union of the first two.
      Rectangle rectangle3 = Rectangle::Union( rectangle1, rectangle2 );

      // Fill in the third rectangle in a semi-transparent color.
      Color transparentColor = Color::FromArgb( 40, 135, 135, 255 );
      e->Graphics->FillRectangle( gcnew SolidBrush( transparentColor ), rectangle3 );
   }

private void ShowRectangleUnion(PaintEventArgs e)
{

    // Declare two rectangles and draw them.
    Rectangle rectangle1 = new Rectangle(30, 40, 50, 100);
    Rectangle rectangle2 = new Rectangle(50, 60, 100, 60);
    e.Graphics.DrawRectangle(Pens.Sienna, rectangle1);
    e.Graphics.DrawRectangle(Pens.BlueViolet, rectangle2);

    // Declare a third rectangle as a union of the first two.
    Rectangle rectangle3 = Rectangle.Union(rectangle1, rectangle2);

    // Fill in the third rectangle in a semi-transparent color.
    Color transparentColor = Color.FromArgb(40, 135, 135, 255);
    e.Graphics.FillRectangle(new SolidBrush(transparentColor), rectangle3);
}

Private Sub ShowRectangleUnion(ByVal e As PaintEventArgs)

    ' Declare two rectangles and draw them.
    Dim rectangle1 As New Rectangle(30, 40, 50, 100)
    Dim rectangle2 As New Rectangle(50, 60, 100, 60)
    e.Graphics.DrawRectangle(Pens.Sienna, rectangle1)
    e.Graphics.DrawRectangle(Pens.BlueViolet, rectangle2)

    ' Declare a third rectangle as a union of the first two.
    Dim rectangle3 As Rectangle = Rectangle.Union(rectangle1, _
        rectangle2)

    ' Fill in the third rectangle in a semi-transparent color.
    Dim transparentColor As Color = Color.FromArgb(40, 135, 135, 255)
    e.Graphics.FillRectangle(New SolidBrush(transparentColor), _
        rectangle3)
End Sub

Açıklamalar

İki dikdörtgenden biri boş olduğunda, yani tüm değerleri sıfır olduğunda, Union yöntem başlangıç noktası (0, 0) olan bir dikdörtgen ve boş olmayan dikdörtgenin yüksekliğini ve genişliğini döndürür. Örneğin, iki dikdörtgen varsa: A = (0, 0; 0, 0) ve B = (1, 1; 2, 2), A ve B'nin birleşimi (0, 0; 2, 2).

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