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Cómo: Redondear las esquinas de un RectangleGeometry

Para redondear las esquinas de un RectangleGeometry, establezca sus propiedades RadiusX y RadiusY en un valor mayor que cero. Cuanto mayores sean los valores, más redondas serán las esquinas del rectángulo.

Ejemplo

En el ejemplo siguiente se muestran varios objetos RectangleGeometry con diferentes configuraciones RadiusX y RadiusY. Los objetos RectangleGeometry se muestran mediante elementos Path.

<Page
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  x:Class="GeoOvwSample.RectangleGeometryRoundedCornerExample">

  <Page.Resources>
  
    <!-- Create a grid background to highlight the
         coordinate system. -->
    <DrawingBrush x:Key="GridDrawingBrushResource" 
      Viewport="0,0,10,10" 
      ViewportUnits="Absolute" TileMode="Tile">
      <DrawingBrush.Drawing>
        <DrawingGroup>
          <DrawingGroup.Children>
            <GeometryDrawing Brush="White">
              <GeometryDrawing.Geometry>
                <RectangleGeometry Rect="0,0,1,1" />
              </GeometryDrawing.Geometry>
            </GeometryDrawing>
            <GeometryDrawing Geometry="M0,0 L1,0 1,0.1, 0,0.1Z" Brush="#CCCCFF" />
            <GeometryDrawing Geometry="M0,0 L0,1 0.1,1, 0.1,0Z" Brush="#CCCCFF" />
          </DrawingGroup.Children>
        </DrawingGroup>
      </DrawingBrush.Drawing>
    </DrawingBrush>

    <!-- Create a graph paper style border to frame the rectangles. -->
    <Style x:Key="GraphPaperBorderStyle" TargetType="{x:Type Border}">
      <Setter Property="HorizontalAlignment" Value="Left" />
      <Setter Property="Background" 
        Value="{StaticResource GridDrawingBrushResource}" />
      <Setter Property="BorderBrush" Value="Black" />
      <Setter Property="BorderThickness" Value="1" />
      <Setter Property="Margin" Value="10" />
      <Setter Property="Width" Value="190" />
      <Setter Property="Height" Value="90" />
    </Style>
  </Page.Resources>

  <StackPanel Name="MainStackPanel">

    <Border Style="{StaticResource GraphPaperBorderStyle}">
      <Path Stroke="Black" 
        StrokeThickness="1"
        Fill="#99CCCCFF">
        <Path.Data>

          <!-- Create a rectangle without rounded corners.  -->
          <RectangleGeometry
            Rect="20,20,150,50"  />
        </Path.Data>
      </Path>
    </Border>

    <Border Style="{StaticResource GraphPaperBorderStyle}">
      <Path Stroke="Black" 
        StrokeThickness="1"
        Fill="#99CCCCFF">
        <Path.Data>

          <!-- Create a rectangle with rounded corners
             by giving the RectangleGeometry a RadiusX
             and a RadiusY of 10.  -->
          <RectangleGeometry
            Rect="20,20,150,50" RadiusX="10" RadiusY="10" />
        </Path.Data>
      </Path>
    </Border>

    <Border Style="{StaticResource GraphPaperBorderStyle}" >
      <Path Stroke="Black" 
        StrokeThickness="1"
        Fill="#99CCCCFF">
        <Path.Data>

          <!-- Set RadiusX and RadiusY to their maximum values 
             (half the rectangle's width and 
              half the rectangle's height).  -->
          <RectangleGeometry
            Rect="20,20,150,50" RadiusX="75" RadiusY="25"  />
        </Path.Data>
      </Path>
    </Border>

  </StackPanel>
</Page>

Rectángulos con diferentes valores de RadiusX y RadiusY
Rectángulos con esquinas redondeadas

Vea también