Cool!
Looks like I went full circle from no comments to too many comments. I guess the nice thing about having too many of them is that people can always delete them or just ignore them. But I am plenty tough so feel free to critique away! I've been coding for 45 years but there is always more to learn. 
In the readability effort I changed all the x's to always be x's and the y's to always be y's.
I like PaulMurray's idea of drawing in from both sides at the same time. (Thanks) (I know a Paul Z Murray at McGill U. who would certainly have thought of this very thing.) I taught university level computer graphics with him back in the 80's but have obviously forgotten way too much.
I just needed nicer numbers for my clock/calendar indoor/outdoor temp display project. Hopefully others will benefit.
WZ