# Use Case Visualizing a 2D or 3D grid of spatial data in OVITO can be helpful. The freud library's [GaussianDensity](https://freud.readthedocs.io/en/latest/modules/density.html#freud.density.GaussianDensity) or [SphereVoxelization](https://freud.readthedocs.io/en/latest/modules/density.html#freud.density.SphereVoxelization) classes could be used to produce an OVITO [VoxelGrid](https://ovito.org/docs/current/python/modules/ovito_data.html#ovito.data.VoxelGrid).