Octagon macro

[dpierson6B4ETP]

Beginner here and I've searched the internet until I was blue in the face for an answer to a seemingly straightforward problem. As part of an assignment, I need to make a macro that creates an octagon with edges that measure 8 units in length. Every time I use this macro:

^C^C_polygon;8;e;\;8<90;

I get an "invalid 2d point. Specify second endpoint of edge" error and need to manually enter "8" tab "90" or drag the cursor 8 units straight up to form the octagon. The macro registers the number of side I want and allows me to select the fist endpoint of the edge...then fails.

I'd appreciate any concrete. non-cryptic, help.

I have tried dozens of permutations (including -polygon) of the macro above and nothing gets me past the error

[ВeekeeCZ · Accepted solution]

Try this?

^C^C_polygon;8;e;\@8<90;

[Kent1Cooper · Accepted solution]

The @ is the key, needed for a relative displacement.  Also, the \ for user input is complete by itself -- the ; after it is extraneous.  And the ; at the very end is not needed -- Enter is assumed at the end unless the macro ends with a control character of some kind.

Another way:

^C^C_polygon;8;e;\@0,8

[VincentSheehan · Accepted solution]

Here is a Lisp.

(defun c:OCTA (/ side angle radian step x y points)

(setq pt1 (getpoint "\nSelect point"))  

(command "_polygon" "8" "E" pt1 "@8<90")


  (princ)
)

[pendean]

@dpierson6B4ETP It appears you may not familiar with these for deliberate placement (see highlighted section)

https://help.autodesk.com/view/ACD/2024/ENU/?guid=GUID-683349C0-E5C2-4E16-8846-5523E71172A9#:~:text=... 

Happy coding!

[ВeekeeCZ]

Just a dynamic input user who does not know, that it's not all relative by default.

[dpierson6B4ETP]

Thank you!  I was *this* close...I could have sworn I tried that.  

[dpierson6B4ETP]

You guys are the best!  Thank you...I almost threw my laptop out the window!