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

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<script type="text/x-red" data-help-name="range">
<p>將數值映射爲另一個區間的數值</p>
<h3>輸入</h3>
<dl class="message-properties">
<dt>payload<span class="property-type">數值</span></dt>
<dd>有效荷載<i>一定</i>得是一個數值. 否則則會映射失敗。</dd>
</dl>
<h3>輸出</h3>
<dl class="message-properties">
<dt>payload<span class="property-type">數值</span></dt>
<dd>被映射到新區間的數值。</dd>
</dl>
<h3>詳細</h3>
<p>該節點將線性縮放所接收到的數值。在默認情況下,結果不限于節點中定義的範圍。</p>
<p><i>縮放並限制到目標範圍</i>表示結果永遠不會超出目標範圍內指定的範圍。</p>
<p><i>在目標範圍內縮放並折疊</i>表示結果將會被限制(折疊)在目標範圍內。</p>
<p>例如輸入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">輸入</th><th width="80px">輸出</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>