What is the difference between these two code？

[Taejun (MA Taejun)]

Hi, could you tell me the difference between these two codes？
1.

2.

Thanks!
Best,
TJ

[Bjorn (Bjørn Keller Engelund)]

Hi @Taejun

The Ref variable determines in what refernce frame the linear measure is taken.
-1 is the global, 0 is the first and 1 is the second AnyRefFrame member.

The explanation for all classes is located in the anybody reference manual
In AMS under the toolbar you will find Help -> AnyScript Reference where you can search all classes.
From the script editor you can also place the cursor on the classname and use F1 to go directly to the class reference page.

Best regards,
Bjørn

[Taejun (MA Taejun)]

Terrific, thanks!
Best,
TJ