A Plane in Hessian Normal form to be used with 
    
ClippingPlaneCollection.
Compatible with mathematics functions in Plane
| Name | Type | Description | 
|---|---|---|
| normal | Cartesian3 | The plane's normal (normalized). | 
| distance | Number | The shortest distance from the origin to the plane.  The sign of distancedetermines which side of the plane the origin
is on.  Ifdistanceis positive, the origin is in the half-space
in the direction of the normal; if negative, the origin is in the half-space
opposite to the normal; if zero, the plane passes through the origin. | 
Members
    The shortest distance from the origin to the plane.  The sign of
distance determines which side of the plane the origin
is on.  If distance is positive, the origin is in the half-space
in the direction of the normal; if negative, the origin is in the half-space
opposite to the normal; if zero, the plane passes through the origin.
    The plane's normal.
Methods
static Cesium.ClippingPlane.clone(clippingPlane, result) → ClippingPlane
    Clones the ClippingPlane without setting its ownership.
    
| Name | Type | Description | 
|---|---|---|
| clippingPlane | ClippingPlane | The ClippingPlane to be cloned | 
| result | ClippingPlane | optional The object on which to store the cloned parameters. | 
Returns:
    a clone of the input ClippingPlane
    
static Cesium.ClippingPlane.fromPlane(plane, result) → ClippingPlane
    Create a ClippingPlane from a Plane object.
    
| Name | Type | Description | 
|---|---|---|
| plane | Plane | The plane containing parameters to copy | 
| result | ClippingPlane | optional The object on which to store the result | 
Returns:
    The ClippingPlane generated from the plane's parameters.
    
