Como: Criar um arco de elipse
This example shows how to draw an elliptical arc. To create an elliptical arc, use the PathGeometry, PathFigure, and ArcSegment classes.
Exemplo
In the following examples, an elliptical arc is drawn from (10,100) to (200,100). The arc has a Size of 100 by 50 device-independent pixels, a RotationAngle of 45 degrees, an IsLargeArc setting of true, and a SweepDirection of Counterclockwise.
[xaml]
In Extensible Application Markup Language (XAML), you can use attribute syntax to describe a path.
<Path Stroke="Black" StrokeThickness="1"
Data="M 10,100 A 100,50 45 1 0 200,100" />
[xaml]
(Note that this attribute syntax actually creates a StreamGeometry, a lighter-weight version of a PathGeometry. For more information, see the Sintaxe de Marcação de Caminho page.)
In XAML, you can also draw an elliptical arc by explicitly using object tags. The following is equivalent to the preceding XAML markup.
<Path Stroke="Black" StrokeThickness="1">
<Path.Data>
<PathGeometry>
<PathGeometry.Figures>
<PathFigureCollection>
<PathFigure StartPoint="10,100">
<PathFigure.Segments>
<PathSegmentCollection>
<ArcSegment Size="100,50" RotationAngle="45" IsLargeArc="True" SweepDirection="CounterClockwise" Point="200,100" />
</PathSegmentCollection>
</PathFigure.Segments>
</PathFigure>
</PathFigureCollection>
</PathGeometry.Figures>
</PathGeometry>
</Path.Data>
</Path>
This example is part of a larger sample. Para obter o exemplo completo, consulte o A amostra de geometrias.