Hi thank you for reply.
I have multiple points that are on stairs of every step and stairs are also multiples.
And i want to make sure any obstacle is not present from 2.1meter from steps of stair.[i am able to get points of stairs steps.]
if decide to create solid at every point and then delete.
this solution may take large time.
If any better workaround. could anyone suggest.
[Link is not opening not sure may be issue with my personal PC as some specific links are not working. i will search on your blog may be similar solution available]