Using FlexiblePatternGenerator to Make Holes for XYDelaunayGenerator

[ahaggerty26]

I am trying to add more nodes to the background of my flexible pattern generator. I am hoping to have nodes in between just the nodes on the boundary and the components within the pattern. I am trying to use the XYDelaunayGenerator to do this, but I keep on running into the multiple clockwise boundary error. I am wondering if there is a way to input the flexible pattern to be the outer boundary and the holes for the Delaunay Generator. Thank you!

[GiudGiud]

hello

the flexible pattern is either the outer boundary or a hole for the Delaunay generator.
Where are you trying to mesh? If it englobes that region, it's the outer boundary. If it's a hole in that region, it s a hole

[ahaggerty26]

Hello!

My thought process was to delete the background block of the flexible pattern and use the blocks within the pattern as the holes. However, when I did this the common error I would get was that there were too many clockwise boundaries. I noticed block deletion generator gets rid of the boundary of the block it deletes so I turned off that part of it. Although, I think it is still deleting the boundaries around the individual blocks within the pattern

if this is the pattern (5 is individual block within pattern and 0 is the background block) I want to replace the zeros with the delaunay generator (7s)

 00000000
005050500
 00000000    
      |
     \/
 77777777
775757577
 77777777         

[GiudGiud]

Although, I think it is still deleting the boundaries around the individual blocks within the pattern

sidesets are oriented. Once it deletes the primary element, it deletes the sides from the sideset.
You can use the FlipSidesetGenerator to create the other oriented sideset, which wont be deleted when 0 is removed

[ahaggerty26]

Just to make sure I understand, I use FlipSidesetGenerator to put the sideset onto the block I want to keep. Then I can delete 0 and the sideset around 5 will remain.

[GiudGiud]

yes that's the intent if the sideset was previously oriented from 0 to 5

[ahaggerty26]

I appreciate your help! Turns out, flexible pattern generator is built with the Delaunay generator. By changing the auto_area_func_default_size parameter it was able to make the mesh much finer.