Would it be possible to add some option(s) to control the ruler display precision? At 1000 or 2048, full 6 digits after the decimal point for distances are a bit excessive to me, but at the same time, an angle rounded up/down to an integer is not precise enough.
I'm currently using a patched FontForge. If you have any idea what such option(s) should be like, I can try to write them.