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---
title: DOMQuad
slug: Web/API/DOMQuad
translation_of: Web/API/DOMQuad
---
<p>{{SeeCompatTable}}{{APIRef("Geometry Interfaces")}}</p>
<p>DOMQuad 是四 DOMPoints 的集合, 用于定义任意四边形的角。返回 DOMQuads 允许 getBoxQuads () 即使存在任意2D 或3D 转换, 也可以返回准确的信息。它有一个方便的边界属性返回 DOMRectReadOnly 的那些情况下, 你只需要一个轴对齐的边框。</p>
<dl>
<dt>{{domxref("DOMQuad.DOMQuad()")}}</dt>
<dd>Creates a new <code>DOMQuad</code> object.</dd>
</dl>
<h2 id="Properties">Properties</h2>
<dl>
<dt>p1,p2,p3,p4 {{readonlyinline}}</dt>
<dd>are {{domxref("DOMPoint")}} objects for each of the <code>DOMQuad</code> object's four corners.</dd>
</dl>
<h2 id="Methods">Methods</h2>
<dl>
<dt>{{domxref("DOMQuad.fromRect()")}}</dt>
<dd>Returns a new <code>DOMQuad</code> object based on the passed set of coordinates.</dd>
<dt>{{domxref("DOMQuad.fromQuad()")}}</dt>
<dd>Returns a new <code>DOMQuad</code> object based on the passed set of coordinates.</dd>
<dt>{{domxref("DOMQuad.getBounds()")}}</dt>
<dd>Returns a {{domxref("DOMRect")}} object with the coordinates and dimensions of the <code>DOMQuad</code> object.</dd>
<dt>{{domxref("DOMQuad.toJSON()")}}</dt>
<dd>Returns a JSON representation of the <code>DOMQuad</code> object.</dd>
</dl>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('Geometry Interfaces','#DOMQuad','DOMQuad')}}</td>
<td>{{Spec2('Geometry Interfaces')}}</td>
<td>Initial definition.</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
<div>
<p>{{Compat("api.DOMQuad")}}</p>
</div>
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