geojson-mapnikify

geojson-mapnikify

Transform GeoJSON objects into Mapnik XML stylesheets with embedded GeoJSON data and simplestyle-spec-derived styles.

install

As a dependency:

npm install --save geojson-mapnikify

As a binary:

npm install -g geojson-mapnikify

api

Assumptions:

• GeoJSON is valid, and in EPSG:4326
• Styles, if any, are expressed in simplestyle-spec
• Mapnik 2.x is the rendering engine

binary

If you install -g, you can use geojson-mapnikify as a binary that takes a single GeoJSON file as an argument and writes a Mapnik XML stylesheet to stdout.

$ geojson-mapnikify test/data/point-retina.geojson > stylesheet.xml
$ geojson-mapnikify test/data/point-retina.geojson retina > stylesheet-retina.xml

mapnikify(geojson, TMP, retina) -> { xml: stylesheet, resources: [] }

Transform GeoJSON into Mapnik XML.

Input

• geojson is a GeoJSON object.
• TMP is a tmp directory path for marker resources
• retina is true or false for whether the style should be optimized for 2x rendering.

Output

• xml is the stylesheet
• resources is a list of paths of marker icons that are expected to be downloaded by another process