to get "boundingbox" of the blank space in a hatch

[devitg]

Hi all , I need to get the  so called, but I know it is not so, bounding box , of the blank space at a hatch . please see the attached DWG 

I need the   "like" 'dl  'ur  . For the blank space 

 

I will use it  increased a bit to do a (ssget  "c"  -dl +ur  '( (0 . "HATCH")))

-dl is a point a bit downward   dl 

and +ur is a point a bit upward  ur 

Guess a 10 % more than distance dl ur

In fact I need to select the Hatch . 

 

As this hatch have no a stated  boundary 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

what is it.dwg

[ronjonp]

Cross posted at two other forums. I answered HERE.

Edited July 6, 2021 by ronjonp

[devitg]

Thanks ronjonp