new Spline()
Creates a curve parameterized and evaluated by time. This type describes an interface
and is not intended to be instantiated directly.
Members
points :Array.<Cartesian3>|Array.<Quaternion>
An array of control points.
Type:
- Array.<Cartesian3> | Array.<Quaternion>
- Default Value:
- undefined
- Source:
times :Array.<Number>
An array of times for the control points.
Type:
- Array.<Number>
- Default Value:
- undefined
- Source:
Methods
evaluate(time, resultopt) → {Cartesian3|Quaternion}
Evaluates the curve at a given time.
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
time |
Number | The time at which to evaluate the curve. | |
result |
Cartesian3 | Quaternion |
<optional> |
The object onto which to store the result. |
- Source:
Throws:
-
time must be in the range
[t0, tn]
, wheret0
is the first element in the arraytimes
andtn
is the last element in the arraytimes
. - Type
- DeveloperError
Returns:
The modified result parameter or a new instance of the point on the curve at the given time.
- Type
- Cartesian3 | Quaternion
findTimeInterval(time, startIndex) → {Number}
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. |
- Source:
Throws:
-
time must be in the range
[t0, tn]
, wheret0
is the first element in the arraytimes
andtn
is the last element in the arraytimes
. - Type
- DeveloperError
Returns:
The index for the element at the start of the interval.
- Type
- Number