The Clip property accesses the layer's Clip object. The Clip object defines the clipping you can apply to any layer on the control. The Clipping support include intersection of any of rectangle, round rectangle, ellipse, pie, picture mask, polygon, and so on. The RotateClip property specifies whether the layer's clipping region is rotated once the layer is rotated.

Any of the following properties ( or combination of them ) can be used to do the clipping:

• Ellipse, clips the layer as a ellipse / circle
• Picture, clips the layer using a picture as a mask
• Pie, clips the layer as a arc / pie
• Polygon, clips the layer giving the points that define a polygon, triangle, rectangle, and so on
• Rectangle, clips the layer giving a rectangle
• RoundRectangle, clips the layer giving a round rectangle

The Type property specifies the type of the clipping the current layer supports. For instance LayerClipTypeEnum.exLayerClipPie | LayerClipTypeEnum.exLayerClipRectangle specifies that a pie and rectangle clippings are combined together. The Value property of the Clip indicates the value to be applied to the current clipping object to define a new shape based on the value. For instance, you may want to define a value from 0 to 100, for a circle, and for 50 to show a half of circle, for 25, a quarter of circle ( pie ), and so on.   

Having the following layer:

By clipping, we can get something like follows:

and if we display the entire gauge here's what we get: