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I have one line with multiple features that I split into separate lines based on features. Now, the two lines that have separate features meet since they were one line before. What I want to do now is to make a gap between these two lines of a certain size. Any idea how to do it in QGIS?

See the place where they meet? I need to get a gap there of 10m from each side.

enter image description here

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    – Ian Turton
    Commented Feb 14, 2023 at 11:16
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    Extract the "meeting point", buffer by 10 m, clip your lines, tada.
    – Erik
    Commented Feb 14, 2023 at 11:23
  • Thx Erik, I have the same logic but implementation is causing problems. :D
    – Ivan
    Commented Feb 14, 2023 at 11:34
  • FOUND IT! Thnx. :)
    – Ivan
    Commented Feb 14, 2023 at 11:36
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    Yeah, you know what I mean -.-
    – Erik
    Commented Feb 14, 2023 at 12:15

1 Answer 1

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You can use a Geometry expression like so:

line_substring(
    $geometry, 
    10,
    length($geometry) - 10
)

If it is for visualisation purposes only, you can make a Geometry Generator symbol layer:

enter image description here

Result

The thinner line is the original geometry, the thicker overlay is the result of the expression.

enter image description here

If you need to make a new data layer, you can use the same expression with the Geometry by Expression tool.

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