The MapWindow GIS project includes a free and open source desktop geographic information system (GIS) with an extensible plugin architecture; a GIS ActiveX control; and C# GIS programmer library called DotSpatial.

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8
votes
3answers
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How to get all the lat/long coords that define a shapefile

I have a Shapefile with several shapes inside it. Using MapWindow I have been able to determine that the shape I need is the one with shapeId 19. As you can probably tell I have very little ...
4
votes
1answer
469 views

Sub-dividing a polygon into smaller polygons

In OpenStreetMap data, some large areas are tagged with a residential=yes tag. Actually within this large polygon there are multiple smaller (rectangular) houses (which are actually not drawn as yet). ...