EllipseGeometry Class

July 28, 2014

Represents the geometry of a circle or ellipse.

Namespace:  System.Windows.Media
Assembly:  System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.

public sealed class EllipseGeometry : Geometry
<EllipseGeometry .../>

The EllipseGeometry type exposes the following members.

  NameDescription
Public methodEllipseGeometryInitializes a new instance of the EllipseGeometry class.
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  NameDescription
Public propertyBoundsGets a Rect that specifies the axis-aligned bounding box of the Geometry. (Inherited from Geometry.)
Public propertyCenterGets or sets the center point of the EllipseGeometry.
Public propertyDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertyRadiusXGets or sets the x-radius value of the EllipseGeometry.
Public propertyRadiusYGets or sets the y-radius value of the EllipseGeometry.
Public propertyTransformGets or sets the Transform object applied to a Geometry. (Inherited from Geometry.)
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  NameDescription
Public methodCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetAnimationBaseValueReturns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldStatic memberCenterPropertyIdentifies the Center dependency property.
Public fieldStatic memberRadiusXPropertyIdentifies the RadiusX dependency property.
Public fieldStatic memberRadiusYPropertyIdentifies the RadiusY dependency property.
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Geometries can be used individually or in combination to declare the data for a Path.

FillRule is technically a property inherited from the base Geometryclass, but setting it has no effect on an EllipseGeometry.

EllipseGeometry Compared to Ellipse

The Ellipse class has a Fill, Stroke, and other rendering properties that EllipseGeometry lacks.

The EllipseGeometry class simply defines the geometry of an ellipse, and cannot render itself. Because of its simplicity, it has a wider range of uses.

The following example shows how to create an ellipse using EllipseGeometry.


<Canvas>
  <Path Fill="Gold" Stroke="Black" StrokeThickness="1">
    <Path.Data>
      <EllipseGeometry Center="50,50" RadiusX="50" RadiusY="50" />
    </Path.Data>
  </Path>
</Canvas>


The following illustration shows the output from the example.

An EllipseGeometry drawn at (50,50)

Yellow Circle.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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