Rectangle.Union(Rectangle, Rectangle) Metode

Definisi

Ruang nama:

System.Drawing

Rakitan:

System.Drawing.Primitives.dll

Sumber:

Rectangle.cs

Rectangle Mendapatkan struktur yang berisi persatuan dua Rectangle struktur.

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

Parameter

a

Rectangle

Persegi panjang untuk serikat.

b

Rectangle

Persegi panjang untuk serikat.

Mengembalikan

Rectangle

Struktur Rectangle yang mengikat persatuan dari dua Rectangle struktur.

Contoh

Contoh kode berikut menunjukkan cara menggunakan Union metode . Contoh ini dirancang untuk digunakan dengan Formulir Windows. Tempelkan kode ini ke dalam formulir dan panggil ShowRectangleUnion metode saat menangani peristiwa formulir Paint , meneruskan e sebagai PaintEventArgs.

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

Keterangan

Ketika salah satu dari dua persegi panjang kosong, yang berarti semua nilainya adalah nol, Union metode mengembalikan persegi panjang dengan titik awal (0, 0), dan tinggi dan lebar persegi panjang yang tidak kosong. Misalnya, jika Anda memiliki dua persegi panjang: A = (0, 0; 0, 0) dan B = (1, 1; 2, 2), maka penyatuan A dan B adalah (0, 0; 2, 2).