entmake xline, vector argument

Hello, I'm trying to entmake xline by specifying 2 points.

But the (xline) subfunction, created by Lee Mac expects point and vector, how do I calculate it from the 2 points I specify?

(mapcar '- pt2 pt1)

But I think you need unit vector, so :

(mapcar '/ (mapcar '- pt2 pt1) (list (distance pt1 pt2) (distance pt1 pt2) (distance pt1 pt2)))

HTH, M.R.

(mapcar '- pt2 pt1)

 

But I think you need unit vector, so :

(mapcar '/ (mapcar '- pt2 pt1) (list (distance pt1 pt2) (distance pt1 pt2) (distance pt1 pt2)))

 

HTH, M.R.

Thank you mr.Ribar, the second example with unit vector worked!