System and method for storing and retrieving geospatial data
US8650220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2012 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jun 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/83
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for storing and retrieving geospatial data in a geographic information system are provided. Geospatial data can be spatially partitioned along axes of a spherical coordinate system associated with a virtual globe or other spheroid into a plurality of discrete geospatial volumes pursuant to a hierarchical spatial partitioning scheme. For instance, geospatial data can be spatially partitioned into geospatial volumes along surfaces of constant latitude, longitude, and altitude defined by the spherical coordinate system. The discrete geospatial volumes can be stored as nodes in a hierarchical tree data structure. Additional methods are provided for portioning geospatial objects, such as tiles or discrete geospatial volumes, in tritree to reduce polar distortions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.