search for: spatialdataframepolygon

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2003 Oct 31
0
A package for spatial data classes: request for comments
...Missing values for coordinates are not allowed. This now works; I need to add more tests for a lot of pathetic cases. To be really useful, the class should include vector (polygon) data, and probably line elements. For this, I need help. The simples approach would be to extend SpatialDataFrame to SpatialDataFramePolygon, and add for each row add the corresponding polygon. Questions: - did I overlook important things in the current proposal? - is there some class in a package that serves as a good starting point for vector/polygon data? - which information should be stored for each polygon (if I look at class &quo...