LibLathe
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Python library for generating lathe paths and gcode
Polyline definition should be SEG = {point, bulge} Liblathe currently uses SEG = {startPoint, endPoint, bulge}
Possible confusion between ISO and ANSI Data. See: https://forum.freecadweb.org/viewtopic.php?f=15&t=30563&sid=f112fdbd598dd0e26751ab4854dd478b&start=120
This is required for using tools that have a lead angle < 270 for example neutral tools. Test with the T-Shape tool.
![image](https://user-images.githubusercontent.com/1136710/99117057-f94cc680-25ec-11eb-8f30-d2d38641d317.png)
![offset](https://user-images.githubusercontent.com/1136710/99113663-89880d00-25e7-11eb-813d-5c100be56956.png)
Be consistent with the Y coordinates. Include it or don't. https://github.com/dubstar-04/LibLathe/blob/master/liblathe/segmentgroup.py#L260-L267