Indicate that 3D geometries are not supported.

[stijnherreman]

No description provided.

[xfischer]

Thanks @stijnherreman. Sounds as if it couldn't be fixed. What's your thoughts ?

[stijnherreman]

Hi @xfischer, it should be possible to fix this yes, IPosition supports it at least. I might submit a PR, haven't decided yet. I considered migrating this part of our code to NTS but that also has a few blockers for our scenario, so I need to evaluate which path to continue on.

[xfischer]

And WKB supports it too : https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry

@alvaromongon you were the original contributor of Wkb for GeoJson.net. Any chance you can add support of Z coordinates ?

@stijnherreman OK, feel free to submit an PR if you made things work in this repo.
If you're stuck I may try to help if I'm not too busy with my other projects.

[stijnherreman]

Indeed, it's a matter of adding support for types 1001-1007. The mentioned exception is intentionally thrown here:

GeoJSON.Net.Contrib/src/GeoJSON.Net.Contrib.Wkb/Conversions/WkbDecode.cs

Line 159 in 5d13b5b

throw new Exception("Unsupported type");

[xfischer]

Plus the encoder/decoder part. I don't think it should be too hard. I wish I had more time to do this, but not at the moment.