How to create perpendicular frames to a polyline?

Grasshopper
1

Hi, I’m trying to create perpendicular frames to a polyline. For that I’m measuring the angle between each par of the lines and divide it by two. Everything works ok except the inner corners.

What am I doing wrong?

plyline%20perp
plyline%20perp1185×843 16.5 KB
plyline perp.gh (15.3 KB)

2

I’m not 100% sure what you are trying to achieve, but maybe this could work for you?

plyline perp_V2.gh (18.7 KB)

image
image.png899×601 65.2 KB

3

In this case, it lost an important point. I’ve started from this

Canvas%20at%2019%3B33%3B29
Canvas%20at%2019%3B33%3B291119×893 93.4 KB

5

Canvas%20at%2001%3B48%3B51
Canvas at 01;48;51.png1358×709 168 KB

plyline perp_re.gh (19.0 KB)

6

Thank you! Looks like it should work, but I’ll check in Monday only.

7

So, it works but I don’t know why. I have took of the most of your additional nodes (frames for example) and still, it works.