Class: Ray

Members

directionCartesian3

The direction of the radiation.

originCartesian3

The origin of the ray.

Default Value:

Cartesian3.ZERO

Methods

static clone(ray, result){Ray}

Assign a ray instance.

Name	Type	Description
ray	Ray	The ray to be copied.
result	Ray	optional The object for storing results is undefined if a new instance needs to be created.

Returns:

Type	Description
Ray	If not provided, the modified result parameters or a new Ray instance will be used. (If the rectangle is undefined, return undefined)

static getPoint(ray, t, result){Cartesian3}

Calculate the points along the ray given by r (t)=0+t * d, where 0 is the origin of the ray and d is the direction.

Name	Type	Description
ray	Ray	Ray.
t	Number	Scalar value.
result	Cartesian3	optional The object that stores the results.

Returns:

Type	Description
Cartesian3	The modified result parameters, or a new instance (if not provided).

Example

//Get the first intersection point of a ray and an ellipsoid.
var intersection = SuperMap3D.IntersectionTests.rayEllipsoid(ray, ellipsoid);
var point = SuperMap3D.Ray.getPoint(ray, intersection.start);

static transform(ray, matrix, result){Ray}

Perform matrix transformation on rays

Name	Type	Description
ray	Ray	ray
matrix	Matrix4	Matrix
result	Ray	Save modified rays

Returns:

Type	Description
Ray	Return the modified ray