readers.geowave¶
The GeoWave reader uses GeoWave to read from Accumulo. GeoWave entries are stored using EPSG:4326. Instructions for configuring the GeoWave plugin can be found here.
Dynamic Plugin
This stage requires a dynamic plugin to operate
Example¶
{
"pipeline":[
{
"type":"readers.geowave",
"zookeeper_url":"zookeeper1:2181,zookeeper2:2181,zookeeper3:2181",
"instance_name":"GeoWave",
"username":"user",
"password":"pass",
"table_namespace":"PDAL_Table",
"feature_type_name":"PDAL_Point",
"data_adapter":"FeatureCollectionDataAdapter",
"points_per_entry":"5000u",
"bounds":"([0,1000000],[0,1000000],[0,100])",
"filename":"./pdal/test/data/autzen/autzen.jpg"
},
{
"type":"writers.text",
"filename":"outputfile.txt"
}
]
}
Options¶
- zookeeper_url
- The comma-delimited URLs for all zookeeper servers, this will be directly used to instantiate a ZookeeperInstance. [Required]
- instance_name
- the zookeeper instance name, this will be directly used to instantiate a ZookeeperInstance. [Required]
- username
- The username for the account to establish an Accumulo connector. [Required]
- password
- The password for the account to establish an Accumulo connector. [Required]
- table_namespace
- The table name to be used when interacting with GeoWave. [Required]
- feature_type_name
- The feature type name to be used when ineracting GeoWave. [Default: PDAL_Point]
- data_adapter
- FeatureCollectionDataAdapter stores multiple points per Accumulo entry. FeatureDataAdapter stores a single point per Accumulo entry. [Default: FeatureCollectionDataAdapter]
- points_per_entry
- Sets the maximum number of points per Accumulo entry when using FeatureCollectionDataAdapter. [Default: 5000u]
- bounds
- The extent of the bounding rectangle to use to query points, expressed as a string, eg: “([xmin,xmax],[ymin,ymax],[zmin,zmax])”. [Default: unit cube]