TransformedBitmap.Transform Property

Definition

Namespace:

System.Windows.Media.Imaging

Assembly:

PresentationCore.dll

Gets or sets the Transform, which specifies the scale or rotation of the bitmap.

C#

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

Property Value

Transform

The Transform, which specifies the scale or rotation of the bitmap. The default value is Identity.

Examples

The following example shows how to apply a Transform to a bitmap.

XAML

<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>

C#

// 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;

Remarks

TransformedBitmap supports only orthogonal transforms such as rotation transforms of 90 increments and scale transforms. Transforms that skew the image are not supported.

Dependency Property Information

Item	Value
Identifier field	TransformProperty
Metadata properties set to true	None

Applies to