node-red/packages/node_modules/@node-red/nodes/locales/zh-CN/function/16-range.html

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<script type="text/x-red" data-help-name="range">
    <p>将数值映射为另一个区间的数值</p>
    <h3>输入</h3>
    <dl class="message-properties">
        <dt>payload<span class="property-type">数值</span></dt>
        <dd>有效荷载<i>一定</i>得是一个数值. 否则则会映射失败。</dd>
    </dl>
    <h3>输出</h3>
    <dl class="message-properties">
        <dt>payload<span class="property-type">数值</span></dt>
        <dd>被映射到新区间的数值。</dd>
    </dl>
    <h3>详细</h3>
    <p>该节点将线性缩放所接收到的数值。在默认情况下，结果不限于节点中定义的范围。</p>
    <p><i>缩放并限制到目标范围</i>表示结果永远不会超出目标范围内指定的范围。</p>
    <p><i>在目标范围内缩放并折叠</i>表示结果将会被限制（折叠）在目标范围内。</p>
    <p>例如，输入0-10映射到0-100。</p>
    <table style="outline-width:#888 solid thin">
        <tr><th width="80px">模式</th><th width="80px">输入</th><th width="80px">输出</th></tr>
        <tr><td><center>scale</center></td><td><center>12</center></td><td><center>120</center></td></tr>
        <tr><td><center>limit</center></td><td><center>12</center></td><td><center>100</center></td></tr>
        <tr><td><center>wrap</center></td><td><center>12</center></td><td><center>20</center></td></tr>
    </table>
</script>