Lattice Parameters Rollout
Create panel > Space Warps > Particles & Dynamics > Object Type rollout > Vector Field > Lattice Parameters rollout
Select a Vector Field space warp. > Modify panel > Lattice Parameters rollout
Use these parameters to specify the Vector Field lattice size and number of segments.
Length/Width/Height—Specify the dimensions of the lattice. The lattice should be larger than the Vector Field object.
Length Segs/Width Segs/Height Segs—Specify the resolution of the Vector Field lattice. The greater the resolution, the higher the accuracy of the simulation.