Most raster to vector conversion programs (I used to experiment with a fre) don't do a very good job at converting something into a closed figure. If there's a little bitty gap, they tend to leave a gap in vectors too, which messes up the fills.
When I needed a clean vector drawing I would end up retracing things in autocad or some other vector graphic program. Over the years the number of times I and to deal with this are countless... comes up once every few weeks.

Now, if you want me to trace some of those facades in a vector format, lemme know, I have all kinds of tools for that. I have couple of raster to vector converters at work too... they mainly end up unused.

Hi, my namez: "NO, Bad Kitteh, NO!"  Whaz yurs?
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