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Julian Tomastik

shared this problem
2 years ago

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Problem with saving polygons

Hello, i tried to measure some polygons using GPS, but in 2 of 4 cases saving to polygon layer failed due to bad geometry. What could be the problem?

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photo Employee
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Good day Julian,

sorry for long time no response.

If you record any polygon in Locus GIS and you wants to save it into layer that contains geometry type "polygon", Locus firstly check if your recorded polygon is valid. It means, that it do not contains any overlapping lines!

If you expect quite complicated path, then I suggest to create layer based on "line", there will be no such problem.

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Dakujem za odpoved.

Is there any chance for some workaround (multipart polygons perhaps)? I tried to use LocusGIS as a forester tool to get positions and acreages without need to postprocess acquired data (to get acreages). Therefore the line based solution is not ideal (i have no problem with postprocessing, but common forester could have some). The conditions of GNSS signal reception in forest environment are very likely to cause occurence of small loops, even if the path really has no loops included.

photo Employee
2

Hello Julian,

I'm trying to find some working solution for this, but I'm not successful. What i currently change is, that in case, geometry has some invalid geometry, in the moment you will try to save it by top "Confirm" button, Locus also move center of map to this problematic place so it will be quite easy to find out where is a problem and manually fix it. Hope this will help to start.

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That could work, thank you.

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