Hi all,

I'm importing unprojected (GCS83) shapefiles using proc mapimport and I've come against a bug -- perhaps someone knows of a remedy:

If I use proc gmap with the imported shapefile, I get a decent looking map, except that there are a few boundaries that stretch across the map as straight lines, i.e., as if one of the lat/longs defining a polygon was not imported correctly. I tried repairing the shapefile geometry in ArcGIS and re-importing the shapefile to SAS, but that had no effect (there were a couple of errors found and fixed in the repair).

Of note: When I look at the imported dataset, there are a number of x / y pairs that are null. I can't tell off hand if these are the source of this problem, and if so, how to remove them (I'm not too concerned about the loss of accuracy of a single vertex here an there in a given polygon). I have tried deleting the rows with null x/y sets, but that makes the map come out even worse with proc gmap.

Anyone else have this problem?

Thanks, Deron