CAD Drawing - Get Column Rotation Angle

Grasshopper
1

Hi guys,

So I have a CAD drawing in which I have rectangular columns. Some of the columns are rotated and they are not blocks. So what I want to achieve is I want to get their rotation angle by extracting one of the longer edges of the columns. How can i achieve that?

Any other method to get rotation angle is welcomed. Sample file is attached.

Thanks.

Column and Axes.dwg (35.0 KB)

2

this might be one way, it measures the angle between side number 2 of each column with X vector

image
image1413×707 63.3 KB

column angle.gh (12.8 KB)

columns curves are internalized, but you can pipeline them back from the original dwg file by reinstating the link in the grouped components:
image

2 Likes
3

column_rot_2021_Jun23a
column_rot_2021_Jun23a1370×668 50.6 KB

column_rot_2021_Jun23a.gh (10.3 KB)

2 Likes
4

thanks @inno and @Joseph_Oster. I accepted Joseph’s as a solution eventhough inno’s solution also works in this case.