useProjection

類別

@Math

導出大小

214 B

套件

@vueuse/math

範例

原始碼

從 [0, 10] 投影到 [10, 100]

輸入: 0

輸出: 10

用法

import { useProjection } from '@vueuse/math'

const input = ref(0)
const projected = useProjection(input, [0, 10], [0, 100])

input.value = 5 // projected.value === 50
input.value = 10 // projected.value === 100

類型宣告

typescript

/**
 * Reactive numeric projection from one domain to another.
 *
 * @see https://vueuse.dev.org.tw/useProjection
 */
export declare function useProjection(
  input: MaybeRefOrGetter<number>,
  fromDomain: MaybeRefOrGetter<readonly [number, number]>,
  toDomain: MaybeRefOrGetter<readonly [number, number]>,
  projector?: ProjectorFunction<number, number>,
): ComputedRef<number>