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Error when using ExportToWKB on multipart geometry

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03-24-2025 05:45 AM
RadekMandovec
Occasional Contributor

When I try use ExportToWKB:

var wkbGeom = GeometryEngine.Instance.ExportToWKB(WkbExportFlags.WkbExportPolygon, geometry);

 I get following error:

System.Exception: 'COMException: An unspecified error has occurred.'

There is mentioned "Does not support curves" in the documentation, but nothing about multiparts. So is it supposed to work on multiparts or not? I tried to create very simple multipart polygon with two squares and it does not work on it either.

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JoshuaBixby
MVP Esteemed Contributor

Have you tried WkbExportMultiPolygon flag?

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2 Replies
JoshuaBixby
MVP Esteemed Contributor

Have you tried WkbExportMultiPolygon flag?

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RadekMandovec
Occasional Contributor

Of course I didn't:-) Now everything works fine! Thank you very much!

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