merge,polygon,qgis,feature-selection , Merging features to one just gives back a feature with braking lines within

Merging features to one just gives back a feature with braking lines within


Tag: merge,polygon,qgis,feature-selection

I have a similar question to this one: "snapping" polygons together

I have drawn let's say 3 areas. The 1. is overlapping with the 2. and the 2. is overlapping with the 3.

I made sure that I was using the snapping tool and the outer lines are matching each other. That is all fine. But now I want them to be just one feature. So I marked the 3 features and hit "Merge Selected Features". It seemed to work, but there is still the line between them.

Then I gave "Dissolve" a try but it had the same result.

So I played around but did not find any way to handle that. What I more would like to have would be that I can join points. IS there maybe something like merge points? Any ideas are welcome.

Here a picture with the vertical unwanted line:


Overally merging features is working. But there is a big issue when one features has issues.

All you need to do is checking the to be merged features. Solve any issue like multiple points or intersections. Now try merging them again and it should work. At least for myself it did.

Another issue could be QGIS. Here it helps a simple restart of QGIS.


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