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D2Q9_OPPOSITE

oxiphysics_gpu::gpu_lbm

Constant D2Q9_OPPOSITE 

Source 
pub const D2Q9_OPPOSITE: [usize; 9];
Expand description

Opposite (bounce-back) indices for D2Q9.

D2Q9_OPPOSITE[i] is the index j such that D2Q9_DIRS[j] == -D2Q9_DIRS[i].