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I have WKT in this format:

GEOMETRYCOLLECTION(POLYGON((491990.250718 6212873.59755,491492.160493 6212904.94117,491265.64715 6212790.54445,491319.517251 6212550.36334,491579.624164 6212637.87553,491611.164518 6212718.61909,492055.359904 6212718.66908,491990.250718 6212873.59755)))

It is currently in Euref98 projection and I need it converted to LongLat.

I'm a .NET developer so I prefer a .NET solution.

Is there a .NET library that can parse WKT text into an in-memory model and write the in-memory model back to WKT?

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2 Answers

up vote 2 down vote

Proj.Net should be able to do that.

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Proj.NET throws an exception, System.ArgumentException : 'GEOMETRYCOLLECTION' is not recognized. – Morten Lyhr Aug 5 '11 at 6:02
Looks like Proj.NET only supports SRS WKT syntax, so no geometries. SharpMap should be able to handle WKT geometries, too: sharpmap.codeplex.com – Igor Brejc Aug 5 '11 at 6:14
up vote 0 down vote

try this as well - http://csharp-source.net/open-source/geospatial

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Hi Doug and welcome to GIS.stackexchange! Please summarize the content of the link in your answer. This way, even if the link should break, readers can gain information. – underdark♦ Aug 4 '11 at 19:21
code.google.com/p/nettopologysuite WKTReader does the job – Morten Lyhr Aug 5 '11 at 6:18
While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. – iant♦ Aug 14 '12 at 10:53

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