Mapnik - The Missing Manual

3.2.2. Non-core

The following plugins used to be part of the mapnik source, but have been moved to an extra repository as they are either no longer maintained, or still experimental. These are usually not part of a standard Mapnik installation.

Geos

Table 12. Geos data source parameters
Parameter	Type	Default
`encoding`	string	utf-8
`extent`
`field_data`
`field_name`
`gid`
`wkt`

Kismet

An experimental plugin that reads WLAN location informatin from a Kismet instance.

Table 13. Kismet data source parameters
Parameter	Type	Default	Description
`encoding`	string	utf-8	Text encoding
`extent`
`host`	string	none	Kinsmet server name or IP address
`port`	int	2501	Port that the Kismet process is listening on
`srs`	string

OCCI

Table 14. OCCI data source parameters
Parameter	Type	Default	Description
`encoding`
`estimate_extent`
`extent`
`fields`
`geometry_field`
`host`
`initial_size`
`max_size`
`password`
`row_limit`
`row_prefetch`
`srid`
`table`
`use_connection_pool`
`user`
`use_spatial_index`
`use_wkb`

OSM

The OSM plugin is no longer maintained as the OGR plugin can read OSM data now, too, and unlike the OSM plugin not only supports the OSM XML format, but also the more compact PBF format. So the old OSM plugin is no longer considered a core plugin now.

Table 15. OSM data source parameters
Parameter	Type	Default	Description
`bbox`	4xfloat	none	no longer supported, see also `url`
`encoding`	string	utf-8	Encoding of text fields in the data file
`file`	file path	OSM XML data file to read
`parser`	string	libxml	So far libxml is the only possible choice here
`url`	string	none	Fetching OSM data from an API url was discontinued in Mapnik v2.3

Python

The experimental python plugin allows for writing data sources using custom Python code.

Table 16. Python data source parameters
Parameter	Type	Default	Description
`encoding`	string	utf8	Text encoding used
`factory`	string	none	A Python callable that impmlements a data source

Rasterlite

Table 17. Rasterlite data source parameters
Parameter	Type	Default	Description
`base`	string	none	name of a `<FileSource>` to find the input file in
`file`
`table`