Function lerpi

lerpi<Vec extends number[] = number[]>(
    v0: Vec,
    v1: Vec,
    t: number,
    i: number,
): number

get the lerp interpolation of the ith dimension of two array vector points v0 and v1, at time t.

Type Parameters

Vec extends number[] = number[]

Parameters

v0: Vec
v1: Vec
t: number
i: number

Returns number

Example

import { assertEquals } from "jsr:@std/assert"

assertEquals(lerpi([ 0, 40], [100, 80],  0.5, 0),  50)
assertEquals(lerpi([ 0, 40], [100, 80],  0.5, 1),  60)
assertEquals(lerpi([50, 40], [100, 80],  0.5, 0),  75)
assertEquals(lerpi([50, 40], [100, 80],  0.0, 0),  50)
assertEquals(lerpi([50, 40], [100, 80],  1.0, 0), 100)
assertEquals(lerpi([50, 40], [100, 80],  1.5, 0), 125)
assertEquals(lerpi([50, 40], [100, 80], -0.5, 0),  25)
assertEquals(lerpi([50, 40], [100, 80], -1.0, 0),   0)
assertEquals(lerpi([50, 40], [100, 80], -2.5, 0), -75)