I need to buffer a line 1 meter, however when running the buffer tool in QGIS with the end cap style as "flat" I get the result shown below.
What causes this, and how can I fix it?
3
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2This stems from bends in your line. Try buffering a line with a 45° bend, and you'll see it more clearly.– ErikJun 25, 2020 at 10:20
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2more likely to be the join style than the end cap– Ian Turton ♦Jun 25, 2020 at 10:43
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Is this a collection of lines or a unique polyline? It seems to be a collection of lines, so it has several end caps, and is fragmented. Try to join into a polyline– MarceloBaliuJun 25, 2020 at 12:41
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1 Answer
As commented, it seems to be a collection of line and not a polyline. I tried to explain in the image below. The first one has a collection of polylines. You can see that when it is a polyline, the buffer stay connected. And when is another line it has a endpoint/cap.
The second sample is when the buffer is checked the dissolve. It looks like your case.
The third sample is a buffer of a unique polyline.
To tranform the multiline layer to a single poly line you can do it manually with the merge tool in the Advance Digitalization toolbar, or with the function dissolve (vetor > geoprocessing > dissolve).
