;write by TaiPengYin
;e-mail:ytphrx@163.com
;three functions: move origin,change unit and change grid
;how to run this skill?
;step1: enter skill environment use command --> skill
;step2:load("e:/homedir/Grid_Origin_Unit.il")
;step3:in the command line key in comand--> g
;for the move origin can snap pin or arc center or line corssing point