> For the complete documentation index, see [llms.txt](https://manual-1-3.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual-1-3.karamba3d.com/chinese_1_3_3/3-in-depth-component-reference/3.8-utilities/3.8.7-line-line-intersection.md).

# 3.8.7: 线-线相交 (Line-Line Intersection)

该运算器将线列表作为输入，并相互测试它们之间的交叉。输出端口**“IP”**提供交点列表。**“LSS”**反馈所有线段，包括由于相互交叉而产生的线段。输入线的列表和带有**“LSS”**线段的数据树分支之间存在着一一对应的关系。输入端口**“LTol”**以米为单位设置公差长度，以查找实际上不相交的线之间的交点。**“LTol”**也是线末端（例如在T形交叉点处）的最小线段长度。


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://manual-1-3.karamba3d.com/chinese_1_3_3/3-in-depth-component-reference/3.8-utilities/3.8.7-line-line-intersection.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.