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OGC GeoPackage Extension for Tiled Gridded Coverage Data
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| Definitionskos:definition | The “GeoPackage Extension for Tiled Gridded Coverage Data” extension (previously titled Elevation Extension) defines how to encode and store tiled regular gridded data, such as a digital elevation model, in a GeoPackage. In the ISO 19123 Schema for Coverage Geometry standard and in the OGC Coverage Implementation Schema, this type of regular gridded data is classed as grid-regular[1]. The tiles contain values, such as elevation, temperature or pressure, and may be stored as 16-bit PNG files or 32-bit TIFF files. The extension defines two ancillary data tables: one for regular gridded coverages and one for tiles. When using the PNG encoding, a scale and offset may be applied. The extension also allows for a TIFF encoding but constrains many of the TIFF options that are available to simplify development. |
|---|---|
| Broaderbroader | Implementation Standard |
| http://purl.org/dc/terms/createdcreated | 2018-03-07 |
| Creatorcreator | Carl Reed |
| hasProfilehasProfile | http://www.opengis.net/def/docs/17-066r1?_profile=conceptscheme |
| seeAlsoseeAlso | http://www.opengis.net/def/docs/17-066r1?_profile=alt |
| https://docs.ogc.org/is/17-066r1/17-066r1.html | |
| Status of item in register or collectionstatus | valid |
| Notationnotation | 17-066r1 |
| Alternative LabelaltLabel | 17-066r1 |
| GeoPackage Extension for Tiled Gridded Coverage Data | |
| OGC document typedoctype | Implementation Standard |
| wasAttributedTowasAttributedTo | GeoPackage SWG |