At this page you can post questions or start discussions on general topics related to Delft3D Flexible Mesh.

Please select a proper category below (if possible), to post your message or reply to an existing post. Please add tags to your posts to simplify searching.







Message Boards

refine grid

chung MengJu, modified 3 Years ago.

refine grid

Youngling Posts: 1 Join Date: 7/23/16 Recent Posts

I want to refine grid like this(hand drawing is roughe):

I have tried to paste two grids but does not work.

I also tried to draw an irregular grid,but it could not be saved into .grd

Will you have another way or point out my mistakes,please.
Michal Kleczek, modified 3 Years ago.

RE: refine grid (Answer)

Padawan Posts: 53 Join Date: 10/23/14 Recent Posts
Hello Chung,

Unfortunately it seems you did not upload all your files properly and I guess neither me nor other users can read your post properly. Could you please rewrite it?
Concerning extension *.grd it is reserved for regular grid. If you work with irregular grid (DFlowFM) you have NetCDF * file format (in the upcoming version also UGRID).

If I remember correctly the plots you unsuccessfully tried to attach, you should explore more options in combination with polygons. As example try:
1. Create Rectangular or Circular Grid (meny Operations) ---> OK
2. Edit --> Polygons --> New
3. Draw a small polygon in the middle of your network (or any other place so that polygon overlaps with network)
4. Now lets refine in the polygon (since polygon from point 3 is by default active) by: Operations --> Irregular Grid Coarseness --> Refine Casulli
5. You have now locally refined network

You can repeat analogically steps above to Derefine some places. Also if you draw a polygon you can then delete a piece of network that is within that polygon.

Kind regards,