語言

LinearGradientBrush.RotateTransform 方法

定義

將局部幾何變換旋轉至指定範圍。 此方法在轉換前先行旋轉。

多載

名稱 Description
RotateTransform(Single)

將局部幾何變換旋轉至指定範圍。 此方法在轉換前先行旋轉。

RotateTransform(Single, MatrixOrder)

以指定順序旋轉局部幾何變換,旋轉指定大小。

RotateTransform(Single)

來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs

將局部幾何變換旋轉至指定範圍。 此方法在轉換前先行旋轉。

public:
 void RotateTransform(float angle);
public void RotateTransform(float angle);
member this.RotateTransform : single -> unit
Public Sub RotateTransform (angle As Single)

參數

angle
Single

旋轉角度。

範例

如需範例,請參閱 RotateTransform。

適用於

RotateTransform(Single, MatrixOrder)

來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs
來源:
LinearGradientBrush.cs

以指定順序旋轉局部幾何變換,旋轉指定大小。

public:
 void RotateTransform(float angle, System::Drawing::Drawing2D::MatrixOrder order);
public void RotateTransform(float angle, System.Drawing.Drawing2D.MatrixOrder order);
member this.RotateTransform : single * System.Drawing.Drawing2D.MatrixOrder -> unit
Public Sub RotateTransform (angle As Single, order As MatrixOrder)

參數

angle
Single

旋轉角度。

order
MatrixOrder

一個 MatrixOrder 指定要加或加旋轉矩陣的 A。

範例

以下程式碼範例是為 Windows Forms 設計,並需要 PaintEventArgse,一個 OnPaint 事件物件。 程式碼

注意下橢圓的梯度與上橢圓的 x 軸呈 45 度角。 同時也注意,該方法的呼叫 TranslateTransform 用來將梯度填充的左邊與下橢圓的左邊對齊。

private:
   void RotateTransformExample( PaintEventArgs^ e )
   {
      // Create a LinearGradientBrush.
      Rectangle myRect = Rectangle(20,20,200,100);
      LinearGradientBrush^ myLGBrush = gcnew LinearGradientBrush( myRect,Color::Blue,Color::Red,0.0f,true );

      // Draw an ellipse to the screen using the LinearGradientBrush.
      e->Graphics->FillEllipse( myLGBrush, myRect );

      // Rotate the LinearGradientBrush.
      myLGBrush->RotateTransform( 45.0f, MatrixOrder::Prepend );

      // Rejustify the brush to start at the left edge of the ellipse.
      myLGBrush->TranslateTransform(  -100.0f, 0.0f );

      // Draw a second ellipse to the screen using
      // the transformed brush.
      e->Graphics->FillEllipse( myLGBrush, 20, 150, 200, 100 );
   }
 private void RotateTransformExample(PaintEventArgs e)
 {
              
     // Create a LinearGradientBrush.
     Rectangle myRect = new Rectangle(20, 20, 200, 100);
     LinearGradientBrush myLGBrush = new LinearGradientBrush(
         myRect, Color.Blue, Color.Red,  0.0f, true);
              
     // Draw an ellipse to the screen using the LinearGradientBrush.
     e.Graphics.FillEllipse(myLGBrush, myRect);
              
     // Rotate the LinearGradientBrush.
     myLGBrush.RotateTransform(45.0f, MatrixOrder.Prepend);

     // Rejustify the brush to start at the left edge of the ellipse.
     myLGBrush.TranslateTransform(-100.0f, 0.0f);
              
     // Draw a second ellipse to the screen using
     // the transformed brush.
     e.Graphics.FillEllipse(myLGBrush, 20, 150, 200, 100);
 }
Public Sub RotateTransformExample(ByVal e As PaintEventArgs)

    ' Create a LinearGradientBrush.
    Dim myRect As New Rectangle(20, 20, 200, 100)
    Dim myLGBrush As New LinearGradientBrush(myRect, Color.Blue, _
    Color.Red, 0.0F, True)

    ' Draw an ellipse to the screen using the LinearGradientBrush.
    e.Graphics.FillEllipse(myLGBrush, myRect)

    ' Rotate the LinearGradientBrush.
    myLGBrush.RotateTransform(45.0F, MatrixOrder.Prepend)

    ' Rejustify the brush to start at the left edge of the ellipse.
    myLGBrush.TranslateTransform(-100.0F, 0.0F)

    ' Draw a second ellipse to the screen using the transformed brush.
    e.Graphics.FillEllipse(myLGBrush, 20, 150, 200, 100)
End Sub

適用於