Well I need cheese burger with French Fries! :)
I did
this [
^]and got this as first result:
An offset algorithm for polyline curves[
^]
Now:
1.
TRY first what you want to do!
2. Formulate what was done by you that looks like an issue/not working.
Try them and tell if you face issues.
Members will be more than happy to help like this.