我有一个 XML 文件，其中包含用于定义邻域坐标的 POLYGON 对象：
<Quartier><Nom>Quartier 5-1</Nom>
<Superficie>44709524.0</Superficie>
<Perimetre>27807.3</Perimetre>
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</Quartier>
我试图在 XSLT 文件中计算多边形对象中有多少坐标。我已经在网上查看了我如何做到这一点，但徒劳无功。有谁知道我该怎么做？一个有用的链接就足够了。
预先感谢。