lineMerge ? about libgeos.jl

[nraynaud]

thank you very much for thoses pointers.
Sorry for my comment that ignored your example, I didn't see it on my phone.
the exact syntax I used is this:

result  = LibGEOS.MultiLineString(LibGEOS.lineMerge(f_multilinestring.ptr))

[visr]

I don't think there is a reason no. It would be good to add, similar to how recently these were added for example: cc69816.

But you can always directly call the lower level functions. I didn't try this, but I think this should work:

LibGEOS.geomFromGEOS(LibGEOS.GEOSLineMerge_r(LibGEOS._context, g.ptr))

[nraynaud]

Thank you very much. I discovered this lower layer layer in the day. I have some experience in GIS, but I am learning Julia, so everything is incredibly hard, I have to try array formats, constructors and other overloaded things for everything. Do you know of an open source project using your library? Thank you for your work. Envoyé de mon iPhone

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Le 19 mai 2022 à 21:38, Martijn Visser ***@***.***> a écrit :  I don't think there is a reason no. It would be good to add, similar to how recently these were added for example: cc69816. But you can always directly call the lower level functions. I didn't try this, but I think this should work: LibGEOS.geomFromGEOS(LibGEOS.GEOSLineMerge_r(LibGEOS._context, g.ptr)) — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.

[visr]

Yeah, since the documentation is still quite limited, it helps to look around in the code and tests, though that's not as straightforward.

Open source dependants can in general be seen here; there are not many: https://juliahub.com/ui/Packages/LibGEOS/we91k/0.6.9?page=2

You can also try out https://yeesian.com/ArchGDAL.jl/dev/geometries/. It also uses GEOS, and that library has seen more maintenance, and has better documentation.