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geostyler-mapfile-parser

v4.0.1

Published

GeoStyler Style Parser implementation for Mapfile

Downloads

32

Readme

geostyler-mapfile-parser

Build Status Coverage Status npm version

GeoStyler Style Parser implementation for Mapserver Mapfiles

Prerequisite

node v10+

And install it with npm:

npm i geostyler-mapfile-parser

How to use

If the aim is to transform a Mapfile to another format, your Mapfile must contains only one LAYER per file.

ES6

import * as fs from 'fs';
import MapfileParser from 'geostyler-mapfile-parser';

const parser = new MapfileParser();

// Load a Mapfile file
const mapfile = fs.readFileSync('./mapfiles_folder/my_mapfile.map', 'utf8');

const { output: geostylerStyle } = await parser.readStyle(mapfile);
console.log(geostylerStyle);

Writing a Mapfile from a Geostyler-Style object is currently not possible.

Command line

To transforms a file to another Geostyler style, use Geostyler-cli Short example of usage - Install and transform a Mapfile to a QGIS qml file, specifying a custom directory for symbols:

npm install -g geostyler-cli
geostyler -s sld -t qgis -o output.map input.qml mapfile-symbols-path=./symbols.sym

Specify a symbols.sym file

If a symbolset tag is defined in your mapfile, this link will be followed to read symbols. If it's not the case a symbols.sym should be located from where you call the transformation.

You can set the default path with:

const parser = new MapfileParser();
parser.symbolsPath = '<a/path/to/symbols.sym>'

Alternatively, if you use this library through a script, you can set the path by adding the command line option: mapfile-symbols-path=.

Run tests

  npm install
  npm run test

Run MapServer to display features styles

Be sure you have:

Then run simply: make run

You can now show predefined mapfiles at this url:

http://localhost:8380/mapserv?service=wms&version=1.3.0&request=getmap&bbox=46.4,6.4,47.2,7.8&layers=line_simple_line&width=1200&height=800&format=image/jpeg&CRS=EPSG:4326

Set the layers param to display other layers (from layers defined in /data/mapfiles).

Funding & financial sponsorship

Maintenance and further development of this code can be funded through the GeoStyler Open Collective. All contributions and expenses can transparently be reviewed by anyone; you see what we use the donated money for. Thank you for any financial support you give the GeoStyler project 💞