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36 lines
1.9 KiB
Markdown
36 lines
1.9 KiB
Markdown
---
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title: "How to: Create a Quadratic Bezier Curve"
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ms.date: "03/30/2017"
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helpviewer_keywords:
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- "Bezier curves [WPF], creating"
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- "quadratic Bezier curves [WPF], creating"
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- "graphics [WPF], quadratic Bezier curves"
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ms.assetid: cd8fca4a-504e-4fd8-92ea-2969065a6e02
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---
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# How to: Create a Quadratic Bezier Curve
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This example shows how to create a quadratic Bezier curve. To create a quadratic Bezier curve, use the <xref:System.Windows.Media.PathGeometry>, <xref:System.Windows.Media.PathFigure>, and <xref:System.Windows.Media.QuadraticBezierSegment> classes.
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## Example
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In the following examples, a quadratic Bezier curve is drawn from (10,100) to (300,100). The curve has a control point of (200,200).
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[xaml]
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In [!INCLUDE[TLA#tla_xaml](../../../includes/tlasharptla-xaml-md.md)], you can use attribute syntax to describe a path.
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[!code-xaml[GeometrySample#54](~/samples/snippets/csharp/VS_Snippets_Wpf/GeometrySample/CS/geometryattributesyntaxexample.xaml#54)]
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[xaml]
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(Note that this attribute syntax actually creates a <xref:System.Windows.Media.StreamGeometry>, a lighter-weight version of a <xref:System.Windows.Media.PathGeometry>. For more information, see the [Path Markup Syntax](path-markup-syntax.md) page.)
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In [!INCLUDE[TLA2#tla_xaml](../../../includes/tla2sharptla-xaml-md.md)], you may also draw a quadratic Bezier curve using object element syntax. The following is equivalent to the previous [!INCLUDE[TLA2#tla_xaml](../../../includes/tla2sharptla-xaml-md.md)] example.
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[!code-xaml[GeometrySample#34](~/samples/snippets/csharp/VS_Snippets_Wpf/GeometrySample/CS/pathgeometryexample.xaml#34)]
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This example is part of larger sample; for the complete sample, see the [Geometries Sample](https://github.com/Microsoft/WPF-Samples/tree/master/Graphics/Geometry).
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## See also
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- [Create an Elliptical Arc](how-to-create-an-elliptical-arc.md)
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- [Create a Cubic Bezier Curve](how-to-create-a-cubic-bezier-curve.md)
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