SharpMap is a simple-to-use map renderer that renders GIS data for use in web and desktop applications.
The engine is written in C# and based on the .NET 2.0 framework. SharpMap is released under the GNU General Public License.
SharpMap is developed and maintained by Morten Nielsen.
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http://sharpmap.iter.dk/
一个用于Web的示例：
http://www.codeproject.com/useritems/SharpMap1.asp