Why didn't the "scale" calculate my result

[zfq947254420]

Why does this curve become a no

仙人掌牌坊.gh (16.0 KB) n-closed curve?And this “scale”, why didn’t I calculate my result

[carlossonline (CJ)]

Hi,
Take a look at this.

[zfq947254420]

• Thank you very much to CJ carlossonline for helping me