PMTiles: Added field pmtiles:layer_properties
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bdon
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Oct 3, 2023
bdon
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Oct 5, 2023
bdon
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Oct 5, 2023
| | href | string | **REQUIRED**. Link to a PMTiles file (usually ends with `.pmtiles`). | | ||
| | type | string | Recommended to be set to `application/vnd.pmtiles`. | | ||
| | pmtiles:layers | \[string] | For vector tiles, the layers to show on the map by default. If not provided, it's up to the discretion of the implementation to choose a layer from the `vector_layers` in the PMTiles metadata. | | ||
| | pmtiles:layer_properties | Map\<string, Map\<string, JSON Schema Object>> | For vector tiles, the properties/fields available for each layer and their corresponding [JSON Schema](#json-schema-object) as an object. | |
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Is this meant to be exhaustive of all layer properties existing in the tileset (like in TileJSON), or only the properties/fields we want to visualize (like in the pmtiles:layers)?
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Good question. I guess the second...
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OK, that seems much more feasible than the former, though TileJSON vector_layers does not provide information about the possible enum values etc so the JSON Schema objects need to be constructed with outside knowledge.
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Yes, indeed. If we would have enough information in vector_layers, we would not need this construct at all.
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cc @cholmes @bdon