Current code files for Steampunk Jacket are here: http://www.sew-brilliant.org/wiki/index.php?title=Men’s_Steampunk_Jacket_1870-1900
Once the pattern is generated with the extension steampunk_jacket.inx and steampunk_jacket.py:
1.select all points that aren’t corners and set to auto-smooth. Set points at the waist line and elbows to symmetrical.
2. set Inkscape Preferences/Steps to 56.25px (5/8″) for Outset to equal a standard seam allowance.
3.select the pattern outline
4.copy then paste in place
6. select original pattern outline
7. click on Edit Object’s icon on upper toolbar, set stroke-style to be a dashed line.
These steps will be incorporated into the extension soon, but I’ve got a deadline of this Friday to sew this up, and the pattern’s not completed yet.
Here’s the result: