Forum

  1. Home
  2. 2. Questions and troubleshooting
  3. 2.1 Questions about the software
  4. 2.1.2 Grid generation
  5. RE: how to exclude a polygon from growing grid

RE: how to exclude a polygon from growing grid

ali shahabi, modified 3 Years ago.

how to exclude a polygon from growing grid

Youngling Posts: 3 Join Date: 8/25/14 Recent Posts
Hi 
I am a DHI-Mike user and I am new to the deft3D. I want to make a UGRID to model a lake with an island inside it. A polygon for the boundaries of the lake and a polygon inside it for the boundaries of the island. How can I exclude the interior polygon from grid generation?
grid rgfgrid
Gabriel Ruiz, modified 3 Years ago.

RE: how to exclude a polygon from growing grid

Youngling Posts: 17 Join Date: 4/28/11 Recent Posts
Hi Ali,

Using RGFGRID, once you have your polygon of boundaries and the island, you have to refine each one (Edit -> Polygons -> Refine (equidistant) or Refine (linear)), select both polygons and generate the unstructured grid with Operations -> Grow Grid from polygons. I did a video to show the steps.

Regards.

​​​​​​​Gabriel

Attachments:

ali shahabi, modified 2 Years ago.

RE: how to exclude a polygon from growing grid

Youngling Posts: 3 Join Date: 8/25/14 Recent Posts
Dear Gabriel 
​​​​​​​Thank you very much for your help.