cubic-hermite

cubic-hermite
=============
Cubic hermite spline for interpolating position/velocity pairs. Simplest quick and dirty way to get a smooth path between points

Install

npm install cubic-hermite

Example

``javascript
var hermite = require("cubic-hermite")

//Compute intial position and velocity
var initial_position = [0, 1]
, initial_velocity = [1, 0]
, final_positions = [1, 0]
, final_velocity = [0, 1]

//Plot curve
for(var t=0.0; t<1.0; t+=0.1) {
console.log(hermite(initial_position, initial_velocity, final_position, final_velocity, t))
}
`

API

$3

Computes an interpolated position between initial and final configurations at time t. Arguments can be either scalars or arrays

* p0 is the initial position
* v0 is the initial velocity
* p1 is the final position
* v1 is the final velocity
* t is the point on the curve to interpolate to in the range [0,1]
* result is a vector that gets the result of the interpolation (if not specified, a new vector is created)

Returns The interpolated point on the curve

$3

Returns the velocity along the curve at a point t

* p0 is the initial position
* v0 initial velocity
* p1 final position
* v1 final velocity
* t point on the curve to interpolate to, in the range [0,1]
* result stores the result of the interpolation. (if not specified, is reallocated)

Returns The interpolated velocity at the time t`

Credits

(c) 2013 Mikola Lysenko. MIT License