readers.pgpointcloud

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readers.pgpointcloud#

The PostgreSQL Pointcloud Reader allows you to read points from a PostgreSQL database with PostgreSQL Pointcloud extension enabled. The Pointcloud extension stores point cloud data in tables that contain rows of patches. Each patch in turn contains a large number of spatially nearby points.

The reader pulls patches from a table, potentially sub-setting the query with a “where” clause.

Dynamic Plugin

This stage requires a dynamic plugin to operate

Example#

[
    {
        "type":"readers.pgpointcloud",
        "connection":"dbname='lidar' user='user'",
        "table":"lidar",
        "column":"pa",
        "spatialreference":"EPSG:26910",
        "where":"PC_Intersects(pa, ST_MakeEnvelope(560037.36, 5114846.45, 562667.31, 5118943.24, 26910))"
    },
    {
        "type":"writers.text",
        "filename":"output.txt"
    }
]

Options#

count

Maximum number of points to read. [Default: unlimited]

override_srs

Spatial reference to apply to the data. Overrides any SRS in the input itself. Can be specified as a WKT, PROJ or EPSG string. Can’t use with ‘default_srs’. [Default: none]

default_srs

Spatial reference to apply to the data if the input does not specify one. Can be specified as a WKT, PROJ or EPSG string. Can’t use with ‘override_srs’. [Default: none]

connection

PostgreSQL connection string. In the form “host=hostname dbname=database user=username password=pw port=5432” [Required]

table

Database table to read from. [Required]

schema

Database schema to read from. [Default: public]

column

Table column to read patches from. [Default: pa]

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