EllipseGeometry Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Represents the geometry of a circle or ellipse.

Inheritance Hierarchy

System..::.Object
System.Windows..::.DependencyObject
System.Windows.Media..::.Geometry
System.Windows.Media..::.EllipseGeometry

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

Syntax

Public NotInheritable Class EllipseGeometry _
    Inherits Geometry
public sealed class EllipseGeometry : Geometry
<EllipseGeometry .../>

The EllipseGeometry type exposes the following members.

Constructors

Name Description
EllipseGeometry Initializes a new instance of the EllipseGeometry class.

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Properties

Name Description
Bounds Gets a Rect that specifies the axis-aligned bounding box of the Geometry. (Inherited from Geometry.)
Center Gets or sets the center point of the EllipseGeometry.
Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
RadiusX Gets or sets the x-radius value of the EllipseGeometry.
RadiusY Gets or sets the y-radius value of the EllipseGeometry.
Transform Gets or sets the Transform object applied to a Geometry. (Inherited from Geometry.)

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Methods

Name Description
CheckAccess Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject.)
Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
GetAnimationBaseValue Returns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
GetType Gets the Type of the current instance. (Inherited from Object.)
GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
ToString Returns a string that represents the current object. (Inherited from Object.)

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Fields

Name Description
CenterProperty Identifies the Center dependency property.
RadiusXProperty Identifies the RadiusX dependency property.
RadiusYProperty Identifies the RadiusY dependency property.

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Remarks

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.

Examples

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)

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Platforms

Windows Phone

Thread Safety

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

See Also

Reference

System.Windows.Media Namespace

Path

Clip