Patent ID: 8204313
Filing Date: 2012-06-19
Classification: G01C,G01S

Abstract:
1. A method of using a laser-measurement device which scans in a regular pattern in two dimensions and that collects data having three-dimensional attributes, the data having the regular pattern in two dimensions, the method comprising the steps of: determining a partition structure for the data based on the regular pattern of which the laser-measurement device scans before initiating a scan; initiating the scan and, while the scan progresses, collecting the data in memory until the data fits a size criteria associated with the partition structure; writing a block of data to disk when the data fits the size criteria; before writing the block to disk, establishing an index based on the three-dimensional attributes of the data, the index corresponding to the block of data; identifying a partition level which is appropriate to display based on a user's eye point; determining a spatial query that will render the data according to the eye point; and querying the data, including comparing the spatial query to the index.