求一算法 数值区间映射

[sxqvb]

这是Arduino中的一个函数
map(value, fromLow, fromHigh, toLow, toHigh)
将value变数依照fromLow与fromHigh范围，对等转换至toLow与toHigh范围
用vb来实现

[sxqvb]

还是好人多k

[X-i-n]

(value-fromLow)*(toHigh-toLow)/(fromHigh-fromLow) +toLow

[脆皮大雪糕]

按比例映射么？这属于初中数学知识。

Option Explicit

Private Sub Command1_Click()
    Debug.Print map(1, 0, 100, 1000, 2000)
End Sub

Private Function map(value As Double, fromLow As Double, fromHigh As Double, toLow As Double, toHigh As Double) As Double
    map = (value - fromLow) / (fromHigh - fromLow) * (toHigh - toLow) + toLow
End Function