The screenshot below shows the counter-clockwise digitized direction of a line feature.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjFk1cJco8hIOTtRdwnv-8KS322kIhJ6nFZWEngNIXi7OWtQrzsaVadR4A7m-nce-FvStYFnVn8PUPU98XGINSSRiDueZxYk6dWVdHekrOGQkqOOdAF4vtloSOVZ45XNutYki3LzhYyzg/s1600/join01.png)
The other line feature is digitized in a clockwise direction.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiR2iy7KY0d7tl5SPNgoN1dMyxhVxsbu89IH3UGy0G43L9f-95Eo2lC2SwnbJ15SEVEGmeu0DW8pRJJ8ZwlD412SMB7yRJNpi1LHmHnP_gQVNslC-HUKcR7zhGlK-JfKAlSjlYIpj2_4A/s1600/join02.png)
If a polygon is constructed using the QGIS Line to Polygon function, the following polygon will be generated.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzp0UFXKALZis6CaDDHYdw3jKsqZQqPn1m1Y_LKGSWRPweIdt5qdqCACifX1Y_slfIufA7k2I3EkVqej2BM3ukDzRAkMKhfnvr-bUF7iEUrXW-4joEEW-2FWMbc9FWo7EERzpF0FiWBQ/s1600/join04.png)
Using the Join Lines command
- If the Join Lines plug-in is not installed, select Plug-ins | Manage and install plug-ins and install the Join Lines plug-in.
- In the map view, select two lines.
- Select Vector | Join two lines | Join two lines.
- Select Layer | Toggle editing.
- Click Save.
The joined line is saved.
If the joined lines are used to generate a polygon, the following area geometry will be constructed.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUdraiiY_5cJHfxwxVCQTOx2hYLW6yuTACY2UwI9QFM1W4fKBlmp-KLvwKMltD7MgCzRGZAFYrWAF9g3gn0GB1uuFP9h_vxmXCVXN1q0zkpf3cQdjNJDjl07jn2x8KI92R9tgalWQAOg/s1600/join08.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3yE_9avH7a7pi03Ljzap7otMZJ1LZO83JpfLQ1TMt6VoZsdQIQORYFyJGZnRmpFSSPeMdnM4GC3HtsdLL0irtdTNgO3ztHbQI_RSiou392SjlmwUfiu1xYbgZJH3h3pTrRS7-p65Hmw/s1600/join09.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiUdraiiY_5cJHfxwxVCQTOx2hYLW6yuTACY2UwI9QFM1W4fKBlmp-KLvwKMltD7MgCzRGZAFYrWAF9g3gn0GB1uuFP9h_vxmXCVXN1q0zkpf3cQdjNJDjl07jn2x8KI92R9tgalWQAOg/s1600/join08.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3yE_9avH7a7pi03Ljzap7otMZJ1LZO83JpfLQ1TMt6VoZsdQIQORYFyJGZnRmpFSSPeMdnM4GC3HtsdLL0irtdTNgO3ztHbQI_RSiou392SjlmwUfiu1xYbgZJH3h3pTrRS7-p65Hmw/s1600/join09.png)
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