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opengeospatial / geopackage-tiled-gridded-coverage

A GeoPackage extension for tiled, gridded coverage data
Apache License 2.0
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Elevation tables - add to `gpkg_extensions` #5

Closed bradh closed 9 years ago

bradh commented 9 years ago

The "Extension Table Record" states that gpkg_2D_gridded_coverage_ancillary and gpkg_2D_gridded_tile_ancillary rows need to be added to the gpkg_extensions table.

For tables that are compliant with the gpkg_elevation_tiles_tiff extension, those tables need to be identified in the gpkg_extensions table. However for elevations using PNG, there is currently no requirement to add those to the gpkg_extension table. That is inconsistent - assuming it is PNG because the author of the GeoPackage didn't list it in gpkg_extension is risky.

Suggest adding a row to the Extension Table Record that looks like: table_name: 'name of actual tile pyramid user data table containing unsigned integer data' column_name: tile_data extension_name: gpkg_elevation_tiles definition: TBD scope: read_write

bradh commented 9 years ago

Was dealt with in https://github.com/opengeospatial/geopackage/issues/119 - I believe incorrectly for reasons identified in this Issue, but its "water under the bridge".