Metapost: two and half months later

Sorry for the delay, I'm going to start posting again this week after about ten weeks of silence. Blame mother nature, the weather has been so crappy that I have not been able to do anything but read manuals and websites and occasionally go out and look at the car sitting in the freezing garage. I didn't expect to have to wait until the end of April for decent weather, Pittsburgh has a generally crappy climate but it doesn't usually snow on tax day here.