Spline

Spline

new

Creates a curve parameterized and evaluated by time. This type describes an interface and is not intended to be instantiated directly.

See:
Source:

Members

:Array

An array of control points.
Default Value:
  • undefined

:Array

An array of times for the control points.
Default Value:
  • undefined

Methods

Evaluates the curve at a given time.

Parameters:
Name Type Argument Description
time Number The time at which to evaluate the curve.
result Cartesian3 | Quaternion <optional>
The object onto which to store the result.
Throws:
  • DeveloperError : time is required.
  • DeveloperError : time must be in the range [t0, tn], where t0 is the first element in the array times and tn is the last element in the array times.
Returns:
Cartesian3 | Quaternion The modified result parameter or a new instance of the point on the curve at the given time.

Finds an index i in times such that the parameter time is in the interval [times[i], times[i + 1]].

Parameters:
Name Type Description
time Number The time.
startIndex Number The index from which to start the search.
Throws:
  • DeveloperError : time is required.
  • DeveloperError : time must be in the range [t0, tn], where t0 is the first element in the array times and tn is the last element in the array times.
Returns:
Number The index for the element at the start of the interval.