mappyfile-geojson 0.1.0

A mappyfile plugin to convert GeoJSON to inline Mapfile features

A mappyfile plugin to convert GeoJSON to inline Mapfile features. Useful for adding dynamically created features (from web services, user created features), to a map.

import mappyfile
import mappyfile_geojson
# will soon be available to import as
# from mappyfile.plugins import geojson as mgeojson

gj = geojson.load(fn)
l = mappyfile_geojson.convert(gj)
print(mappyfile.dumps(l))

Converts:

{
  "type": "Feature",
  "geometry": {
    "type": "LineString",
    "coordinates": [
      [ 102.0, 0.0 ],
      [ 103.0, 1.0 ],
      [ 104.0, 0.0 ],
      [ 105.0, 1.0 ]
    ]
  },
  "properties": {
    "prop0": "value0",
    "prop1": 0.0
  }
}

to:

LAYER
    EXTENT 102.0 0.0 105.0 1.0
    STATUS ON
    TYPE LINE
    PROCESSING "ITEMS=prop0,prop1"
    FEATURE
        ITEMS "value0;0.0"
        POINTS
            102.0 0.0
            103.0 1.0
            104.0 0.0
            105.0 1.0
        END
    END
END

Demo

An example of using the plugin with mappyfile can be found in example.py.

Requirements

• Python 2.7 or Python 3.x

Installation

pip install mappyfile-geojson

Notes

• Can calculate extent of input features, with optional buffer

• Multipart features currently not implemented

• Nested properties are not supported

  "properties": {
      "prop0": "value0",
      "prop1": { "this": "that" }
  }

  Will become:

  ITEMS "value0;{u'this': u'that'}"

Author

• Seth Girvin @geographika