evaluate-1st-derivative
function evaluate1stDerivative(ps: number[][], t: number): number[]
Defined in local-properties-at-t/evaluate-1st-derivative/double/evaluate-1st-derivative.ts:16
Returns the [x,y] value of the once differentiated (with respect to t)
bezier curve's power basis when evaluated at t.
- uses double precision calculations internally
Parameters:
| Name | Type | Description |
|---|---|---|
ps | number[][] | a linear, quadratic or cubic bezier, e.g. [[0,0],[1,1],[2,1],[2,0]] |
t | number | the t parameter |