> For the complete documentation index, see [llms.txt](https://helps.ugscan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://helps.ugscan.com/features/gong-ju-lan/ce-liang.md).

# 测量

{% hint style="info" %}
提示**:** 测量精度取决于扫描质量和范围, 范围越大累计误差也大, 扫描轨迹不好也可能会增加误差.
{% endhint %}

<figure><img src="/files/oDMoLx7rnRomdeZASo9Y" alt=""><figcaption></figcaption></figure>

**测量选点:** 测量过程中, 3D视图交互不变, 要创建测量点只需要找到要测量的地方, 然后单指长按就可以, 可以连续创建测量点, 测量长度是所有测量点加起来的长度.

**撤销:** 点击撤销可将最近一次创建的测量点删除.

**关闭:** 关闭测量功能.


---

# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

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```

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