change position of ucs with cube .... help

[leonucadomi]

I WOULD LIKE TO KNOW IF THERE IS ANY VARIABLE OR COMMAND TO CHANGE THE UCS 

WHEN I SELECT A FACE ON THE CUBE.

 

AND NOT HAVE TO BE RUNNING UCS COMMAND...AND VIEWPORT OPTION

 

THANKS

 

[BIGAL]

May be a solution, no need for viewport or UCS you can use vpoint in particular say -vpoint 1,1,1 is a 3d view changing the x,y,z value to zero can give quick access to a square off elevation. Then UCS V  or UCS OB. 

 

(if (= look "R")(command-s "-vpoint" "1,0,0"))
(if (= look "L")(command-s "-vpoint" "-1,0,0"))
(if (= look "F")(command-s "-vpoint" "0,-1,0"))
(if (= look "B")(command-s "-vpoint" "0,1,0"))
(if (= look "P")(command-s "-vpoint" "0,0,1"))

 

[leonucadomi]

thanks i will try