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A mappyfile plugin to convert GeoJSON to inline Mapfile features

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A mappyfile plugin to convert GeoJSON to inline Mapfile features. Useful for adding dynamically created features (from web services, user created features, and other external data sources) to a map, or to quickly visualise a geometry.

Note - to display entire GeoJSON files MapServer can be configured to read GeoJSON as an input OGR source using the GeoJSON driver.

import geojson
import mappyfile
# import directly
import mappyfile_geojson
# can also be imported as plugin using
from mappyfile.plugins import mappyfile_geojson

gj = geojson.load(fn)
l = mappyfile_geojson.convert(gj)


  "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


    EXTENT 102.0 0.0 105.0 1.0
    PROCESSING "ITEMS=prop0,prop1"
        ITEMS "value0;0.0"
            102.0 0.0
            103.0 1.0
            104.0 0.0
            105.0 1.0


An example of using the plugin with mappyfile can be found in along with an

A further example, creating images for each of the test cases using mapscript is available at

The sample output images are in the images folder.


  • Python 2.7 or Python 3.x

  • mappyfile (the plugin can be used on its own but will create a dictionary object structured to use within mappyfile). Installing mappyfile should be done separately.


Note installing the mappyfile-geojson plugin will automatically install the required dependency geojson.

pip install mappyfile
pip install mappyfile-geojson


  • Can calculate extent of input features, with an optional buffer (by passing an extent_buffer to the convert function)

  • Multipart features are supported

  • Coordinate sequences with Z values are supported, but Z values are ignored as they are not supported in Mapserver inline features.

  • As a MapServer LAYER only supports a single geometry type, all features in the GeoJSON file should also be of the same type (however a mix of multipart and non-multipart features is supported e.g. LineString and MultiLineString)

  • Nested JSON properties are not supported:

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

    Will become:

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


0.4 (09/02/2020)

  • Automated Windows testing

  • Automated release process

  • Set geojson dependency version

  • Fix failing tests due to precision issuee differences between py2 and py3

  • Use integers for layer EXTENT where possible e.g. 5 instead of 5.0

0.3 (29/08/2018)

  • Add support for MultiPoint, MultiLineString, and MultiPolygon

  • Allow coordinates with Z values (previously these would crash the script)

  • Updated README

0.2 (15/02/2018)

  • Unicode support

0.1 (06/02/2018)

  • Initial release


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