1. A method for organizing spatial data, the method comprising: receiving a location data point from a navigation device; identifying a plurality of data points indexed by a distance from the location data point; comparing the distance from each of the plurality of data points to the location data point; assigning at least one of the plurality of data points within a minimum distance from the location data point into a first cell; assigning a subset of the plurality of data points greater than the minimum distance from the location data point into a second cell, wherein the subset of the plurality of data points comprises two or more data points; constructing a depthmap including the first cell and the second cell, wherein the second cell is larger than the first cell; and sending the depthmap for display on the navigation device.