new TrajectoryHelper(windDataProvider, arrowLengthProportionopt)
TrajectoryHelper handles trajectories
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
windDataProvider |
WindDataProvider | The wind data file. | |
arrowLengthProportion |
number |
<optional> |
scale wind length data, default 10 |
- Source:
Methods
getTimeData(arrow, time) → {Object}
Returns the head/tail positions of an arrow on the trajectory and its length
Parameters:
| Name | Type | Description |
|---|---|---|
arrow |
Arrow | The arrow to calculate |
time |
int | Timestep to calculate for |
- Source:
Returns:
Object with points in "head" and "tail" and "length"
- Type
- Object
integrate(s, stepSize, trajectoryLength) → {Object}
Integration using Runge-Kutta (RK2)
Parameters:
| Name | Type | Description |
|---|---|---|
s |
Object | Point to integrate |
stepSize |
Number | Step size |
trajectoryLength |
Number | Length of the trajectory that is integrated. |
- Source:
Returns:
Endpoint of integration
- Type
- Object