Efficient processing for vector tile generation
US10921136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vector tile generator receives map features from a database of raw map data. Each map feature includes geometry data and property data. The vector tile generator stores the property data in a property store. The vector tile generator generates, based on the geometry data, a set of zoom data organized into a plurality of zoom levels. Each zoom level includes at least some of the map features. The vector tile generator maps the map features of the set of zoom data to a plurality of tiles that includes a set of tiles for each of the zoom levels. For each tile, the vector tile generator clips map features mapped to the tile based on a boundary of the tile, encodes the clipped map features to a vector format, and merges the encoded clipped map features with the stored property data corresponding to the map features in the tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.