GradientBrush.SpreadMethod Proprietà

  • Riferimento

Definizione

Spazio dei nomi:
System.Windows.Media
Assembly:
PresentationCore.dll

Recupera o imposta il tipo di metodo spread che specifica come tracciare una sfumatura che inizia o finisce entro i limiti dell'oggetto da disegnare.

public:
 property System::Windows::Media::GradientSpreadMethod SpreadMethod { System::Windows::Media::GradientSpreadMethod get(); void set(System::Windows::Media::GradientSpreadMethod value); };
public System.Windows.Media.GradientSpreadMethod SpreadMethod { get; set; }
member this.SpreadMethod : System.Windows.Media.GradientSpreadMethod with get, set
Public Property SpreadMethod As GradientSpreadMethod

Valore della proprietà

GradientSpreadMethod

Tipo di metodo di distribuzione utilizzato per disegnare la sfumatura. Il valore predefinito è Pad.

Esempio

L'esempio seguente applica impostazioni diverse SpreadMethod a diversi LinearGradientBrush oggetti e RadialGradientBrush .

<Page 
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
  Title="Gradient Spread Methods">
  <StackPanel>

    <!-- The following three examples show the different gradient spread methods
         applied to linear gradient brushes. -->
    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Pad -->
        <LinearGradientBrush StartPoint="0.3,0.5" EndPoint="0.7,0.5" SpreadMethod="Pad">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </LinearGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Reflect -->
        <LinearGradientBrush StartPoint="0.3,0.5" EndPoint="0.7,0.5" SpreadMethod="Reflect">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </LinearGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Repeat -->
        <LinearGradientBrush StartPoint="0.3,0.5" EndPoint="0.7,0.5" SpreadMethod="Repeat">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </LinearGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

    <!-- The following three examples show the different gradient spread methods
         applied to radial gradient brushes. -->
    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Pad -->
        <RadialGradientBrush Center="0.5,0.5" RadiusX="0.3" RadiusY="0.3" SpreadMethod="Pad">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </RadialGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Reflect -->
        <RadialGradientBrush Center="0.5,0.5" RadiusX="0.3" RadiusY="0.3" SpreadMethod="Reflect">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </RadialGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

    <Rectangle Width="150" Height="75" Stroke="Black">
      <Rectangle.Fill>

        <!-- Repeat -->
        <RadialGradientBrush Center="0.5,0.5" RadiusX="0.3" RadiusY="0.3" SpreadMethod="Repeat">
          <GradientStop Color="White" Offset="0" />
          <GradientStop Color="#333333" Offset="1" />
        </RadialGradientBrush>
      </Rectangle.Fill>
    </Rectangle>

  </StackPanel>
</Page>

Commenti

La figura seguente mostra i metodi di diffusione disponibili e il relativo effetto su LinearGradientBrush e RadialGradientBrush. La linea rossa indica lo spazio sfumato. Un LinearGradientBrush oggetto definisce lo spazio sfumato con le relative StartPoint proprietà e EndPoint . Un RadialGradientBrush oggetto definisce lo spazio sfumato con le Centerrelative proprietà , RadiusXe RadiusY .

Impostazioni di GradientSpread diverse
Metodi di diffusione sfumatura

Informazioni proprietà di dipendenza
Campo Identificatore SpreadMethodProperty
Proprietà dei metadati impostate su true Nessuno

Si applica a

Vedi anche