TransformedBitmap.Transform 屬性

定義

命名空間:

System.Windows.Media.Imaging

組件:

PresentationCore.dll

取得或設定 Transform，指定點陣圖的縮放或旋轉。

public:
 property System::Windows::Media::Transform ^ Transform { System::Windows::Media::Transform ^ get(); void set(System::Windows::Media::Transform ^ value); };

public System.Windows.Media.Transform Transform { get; set; }

member this.Transform : System.Windows.Media.Transform with get, set

Public Property Transform As Transform

屬性值

Transform

Transform，指定點陣圖的縮放或旋轉。 預設值是 Identity。

範例

下列範例示範如何將 套用 Transform 至點陣圖。

<Image Width="150" Margin="5" Grid.Column="0" Grid.Row="1">
  <Image.Source>
    <TransformedBitmap Source="/sampleImages/watermelon.jpg" >
      <TransformedBitmap.Transform>
        <RotateTransform Angle="90"/>
      </TransformedBitmap.Transform>
    </TransformedBitmap>
  </Image.Source>
</Image>

// Create Image element.
Image rotated90 = new Image();
rotated90.Width = 150;

// Create the TransformedBitmap to use as the Image source.
TransformedBitmap tb = new TransformedBitmap();

// Create the source to use as the tb source.
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.UriSource = new Uri(@"sampleImages/watermelon.jpg", UriKind.RelativeOrAbsolute);
bi.EndInit();

// Properties must be set between BeginInit and EndInit calls.
tb.BeginInit();
tb.Source = bi;
// Set image rotation.
RotateTransform transform = new RotateTransform(90);
tb.Transform = transform;
tb.EndInit();
// Set the Image source.
rotated90.Source = tb;

' Create Image element.
Dim rotated90 As New Image()
rotated90.Width = 150

' Create the TransformedBitmap to use as the Image source.
Dim tb As New TransformedBitmap()

' Create the source to use as the tb source.
Dim bi As New BitmapImage()
bi.BeginInit()
bi.UriSource = New Uri("sampleImages/watermelon.jpg", UriKind.RelativeOrAbsolute)
bi.EndInit()

' Properties must be set between BeginInit and EndInit calls.
tb.BeginInit()
tb.Source = bi
' Set image rotation.
Dim transform As New RotateTransform(90)
tb.Transform = transform
tb.EndInit()
' Set the Image source.
rotated90.Source = tb

備註

TransformedBitmap 僅支援正交轉換，例如 90 個遞增的旋轉轉換和縮放轉換。 不支援扭曲影像的轉換。

相依性屬性資訊

識別碼欄位	TransformProperty
設定為 的中繼資料屬性 true	無