[NewKid]

As shown in the title, this one is about how to get all the neighbour of one cell?
Still in OF 4.0.

[clapointe]

For one cell -- some combination of pseudo code and workable code below. The relevant part is .cellCells(). Searching the code for cellCells() should give you plenty of ideas.

 //label for cell ,eg. cell 1
label someCell = mesh.Cells[1]

//list of labels for neighbor cells
labelList neighborCells = mesh[someCell].cellCells();

Caelan

[NewKid]

cellCells() works!
Thank you so much！