Rectangle offset creates round corners

[Ewan_Opie]

The node _Sort Points as Perimeter from the Sastrugi package can sort the points.

But as it is not a rectangular shape, have you looked at this post?

Offset or scale closed polycurve to target area

Ok, @Tchunoo_Kahng, I’m gonna go forward and view your challenge as a nail, though it probably isn’t… And then I’m gonne use the biggest hammer of them all. It’s not efficient, it’s very slow, it’s quite complicated, but it’s very cool anyways. Consider this response as digression and an attempt to lure you into the realm of multiobjective genetic algorithms. The hammer I’m talking about is the Optimo package. You can read a little bit about it here, but in effect Optimo is a mu…

Or this one, as the shape displayed as working is consistent with yours.

Offset curve not consistent

I didn’t have a problem in offsetting the selected curves. The offset direction issue has been discussed a few times on this forum. [20160217-4]