FEATool Multiphysics
v1.17.0
Finite Element Analysis Toolbox
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GRIDADJ Generate grid cell adjacency information.
[ A ] = GRIDADJ( C, N_SDIM ) Generates an array A with indices to neighboring cells and zeros where no neighbors are found. Input data is an array C with cell connectivities and N_SDIM specifying the number of space dimensions.
Input Value/(Size) Description ----------------------------------------------------------------------------------- c (n_v,n_c) Cell connectivity pointer array where the entries in each column correspond to the cell vertex numbers specifying the cells. n_sdim scalar Number of space dimensions. . Output Value/(Size) Description ----------------------------------------------------------------------------------- a (n_e,n_c) Array with cell adjacency pointers where the entries in each column correspond to the neighbouring cell number for each edge or face. A zero entry indicates that the edge/face belongs to an external boundary.