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In QGIS I am trying to run a buffer on a polygon layer for 100 meters, it is based on a tutorial so it is supposed to work but it doesn't work. Someone in another forum suggested that I merge the polygons first but it actually didn't make a buffer at all after that.

I am using WGS84 UTM Zone 33S, the tutorial link is here http://docs.qgis.org/2.14/en/docs/training_manual/answers/answers.html#complete-analysis-2

closed as off-topic by Matthias Kuhn, whyzar, Midavalo Mar 9 '17 at 20:21

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  • "This problem cannot or can no longer be reproduced. Changes to the system or to the asker's circumstances may have rendered the question obsolete, or the question does not include a procedure to enable potential answerers to reproduce the same symptoms. Such questions are off-topic as they are unlikely to help future readers, but editing them to include more details can lead to re-opening." – Matthias Kuhn, whyzar, Midavalo
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I was just having a similar issue. My polygon was in NAD 83 UTM coordinates and I set my buffer distance up in meters and the resulting buffer was always blank. I think my issue was that the nodes on my polygon crossed. Check your nodes that you have clear uniform polygons without any nodes intersecting. Hope this helps.

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