Patent attributes
A device can be configured to receive map data from at least one map data provider, the map data including data points representing information regarding a space. The device can generate a first set of voxels based on the map data, the first set of voxels representing a first three-dimensional space that includes: at least a portion of the space represented by the map data, and voxel data corresponding to at least one of the data points. The device may also index the first set of voxels in a first index; generate a second set of voxels based on the first set of voxels, the second set of voxels representing a second three-dimensional space that is included in the first three-dimensional space; and index the second set of voxels in a second index.
