widget-3dviewer
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Modal code and Arc improvments
- Handles multiple modal (non-motion) codes on one line. These are common for init blocks and for relative motion.
- Fixes a precision-loss bug in arc calculation which sometimes caused incorrect center computation
- Implements Mach3-style Absolute IJK ARC mode (G90.1 turns on, G91.1 turns off)
The intermediate commits in the series are uninteresting, so I suggest merging in squash mode.
This looks great!
I'm going to try merge this in to my cleanup branch.