Extract points from polyline
 

Hello Everybody,
I am trying to extract some points from the inlet surface of my geometry and for this, I draw a ployline on the inlet surface and save the points in a file. Everything is ok but when I used that point to release particle it seems some points are out of domain. Then I draw a polyline in the middle of the inlet surface and extract the point. But after run the simulation, it seems some points are out of domain.

My question is, how can I get that points which are inside the domain. I will be happy to hear from you.

Thanks and regards,
Saeed