writers.tiledb
Implements TileDB 1.4.1+ reads from an array.
Dynamic Plugin
This stage requires a dynamic plugin to operate
Streamable Stage
This stage supports streaming operations
Example
[
{
"type":"readers.las",
"array_name":"input.las"
},
{
"type":"writers.tiledb",
"array_name":"output_array"
}
]
Options
- array_name
TileDB array to write to. [Required]
- config_file
TileDB configuration file [Optional]
- tile_data_capacity
Number of points per tile [Optional]
- x_tile_size
Tile size (x) in a Cartesian projection [Optional]
- y_tile_size
Tile size (y) in a Cartesian projection [Optional]
- z_tile_size
Tile size (z) in a Cartesian projection [Optional]
- chunk_size
Point cache size for chunked writes [Optional]
- compression
TileDB compression type for attributes, default is None [Optional]
- compression_level
TileDB compression level for chosen compression [Optional]
- append
Append to an existing TileDB array with the same schema [Optional]
- stats
Dump query stats to stdout [Optional]
- filters
JSON array or object of compression filters for either coords or attributes of the form {coords/attributename : {“compression”: name, compression_options: value, …}} [Optional]
- where
An expression that limits points passed to a writer. Points that don’t pass the expression skip the stage but are available to subsequent stages in a pipeline. [Default: no filtering]
- where_merge
A strategy for merging points skipped by a ‘where’ option when running in standard mode. If
true
, the skipped points are added to the first point view returned by the skipped filter. Iffalse
, skipped points are placed in their own point view. Ifauto
, skipped points are merged into the returned point view provided that only one point view is returned and it has the same point count as it did when the writer was run. [Default:auto
]
By default TileDB will use the following set of compression filters for coordinates and attributes;
{
"coords":[
{"compression": "bit-shuffle"},
{"compression": "gzip", "compression_level": 9}
],
"Intensity":{"compression": "bzip2", "compression_level": 5},
"ReturnNumber": {"compression": "zstd", "compression_level": 75},
"NumberOfReturns": {"compression": "zstd", "compression_level": 75},
"ScanDirectionFlag": {"compression": "bzip2", "compression_level": 5},
"EdgeOfFlightLine": {"compression": "bzip2", "compression_level": 5},
"Classification": {"compression": "gzip", "compression_level": 9},
"ScanAngleRank": {"compression": "bzip2", "compression_level": 5},
"UserData": {"compression": "gzip", "compression_level": 9},
"PointSourceId": {"compression": "bzip2"},
"Red": {"compression": "rle"},
"Green": {"compression": "rle"},
"Blue": {"compression": "rle"},
"GpsTime": [
{"compression": "bit-shuffle"},
{"compression": "zstd", "compression_level": 75}
]
}