Not a pretty picture

[Dan Putler]

Well, I've created a well behaved radial sort program in R.  
Unfortunately, it doesn't completely solve the scrambled vertices  
problem when the road segments are used as the basis of creating the  
FSA polygons. Below is a screen shot of what I'm getting after the  
radial sorting of the vertices, while the second one shows what I get  
without sorting the vertices. Both of these are for FSA K2W. The last  
thing I could do is take the convex hull of the vertices, but this  
would also have problems as well. Based on this exercise, I don't  
know whether it is practical to use the FSA boundary road segments  
directly in forming FSA boundaries. Frank, any ideas other than using  
a radial sort or a convex hull to get the vertices in the correct order?

Dan

P.S.
Dave, the earlier polygon file I sent you for this FSA was based on  
my hand digitalizing the polygon using the road segments as guides.



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