Longitudinal profile plugin for geOrchestra MapStore2 viewer

General

This repository is a MapStore Extension repository to build longitudinal profile plugin for the MapStore2 geOrchestra project.

It can be used also as a template to create new extensions for geOrchestra.

Quick Start

Clone the repository with the --recursive option to automatically clone submodules.

git clone --recursive https://github.com/georchestra/mapstore2-longitudinal-profile

Install NodeJS >= 12.16.1 , if needed, from here.

You can start the development application locally:

npm install

npm start

The application runs at http://localhost:8081 afterwards. You will see, opening a map, the sample plugin on top of the map.

Plugin configuration

Given a selected digital elevation model, the Longitudinal profile plugin allows the user to generate a longitudinal profile based on the drawn, selected or imported geometry. The longitudinal profile is calculated by a WPS process and retrieved from it.

The plugin allow also to export the profile charts as well as the result of the WPS in CSV format.

Local config

For example the plugin allows configuration of the following properties

wpsurl - The path url of the WPS service
identifier - Identifier of the WPS process to use
referentiels - List of layers providing altitude information.
distances - List of distances available for user's selection
defaultDistance - Distance selected by default

defaultReferentiel - Referential selected by default

"cfg": {
"wpsurl": "/geoserver/wps",
"identifier": "gs:ProfilEnLong",
"referentiels": [
    {
      "layerName": "sfdem",
      "title": "sfdem",
    }
],
"distances": [
    1,
    5,
    10,
    50,
    100,
    500,
    1000,
    5000
],
"defaultDistance": 100,
"defaultReferentiel": "sfdem"
}

Running geOrchestra

Backend Dev Setup

You can run this application and refer to a running back-end of geOrchestra by configuring proxyConfig.js in the root of the project. You can configure this to point to your running instance of geOrchestra, with longitudinal profile installed.

Proxy

If you try to do requests to absolute URLs, you may be redirected to use the proxy. (the request will be transformed in something like /mapstore/proxy?url=...). Make sure that this entry point(s) (configured in proxyConfig.json) are able to resolve the URL passed as parameter. If supported, you can add the URL to useCors entry in localConfig.json (see mapstore documentation).

Authentication

If you need to login, you can run geOrchestra locally and use the header extension to fake the login (see Dev documentation of GeOrchestra). When you will try to login from the login menu, you will be logged in as the user indicated in the headers.

Build Extension

To build the extension you should run

npm run ext:build

This will create a zip with the name of your extension in dist directory.

Test Module

The current project contains the plugin on its own. In a production environment the extension will be loaded dynamically from the MapStore back-end. You can simulate in dev-mode this condition by:

Commenting js/app.js the lines indicated in js/app.jsx, that allow to load the plugin in the main app.

// Import plugin directly in application. Comment the 3 lines below to test the extension live.
const extensions = require('./extensions').default;
plugins.plugins = { ...plugins.plugins, ...extensions };
ConfigUtils.setConfigProp('translationsPath', ['./MapStore2/web/client/translations', './assets/translations']);
// end of lines to comment

run, in 2 different console the following commands:
- npm run ext:start
- npm run ext:startapp

This will run webpack dev server on port 8081 with MapStore, simulating the extensions.json, and will run on port 8082 the effective modules to load.

Dev Hints

Here a list of hints to develop your extension:

In order to keep your changes as much self contained as possible we suggest to put all your code (and assets) in js/extension/. (Put css in js/extension/assets/, etc...)
Use the @mapstore alias to refer to MapStore components. This helps your code to be compatible with future enhancements when mapstore will be published as a separated package, that can be shared

Release

In ordrer to do a release you can use the following steps. Usually it is done on master so you can simply

Build the extension locally, or download the last artifact from the github actions (they disappear after N days)
Create a github release ( From github repo page --> Releases --> Draft a new release)
- target the master branch, if you have to publish from master
- Write the tag name you want for the release and click on "Create new tag [...] on publish" entry. (This will create a new tag on the HEAD of the master branch when the release is published). E.g. 1.0.0-rc21
- Compile title of the realease with the name of the release (usually the same of the tag)
- Compile the release description ("auto-generate release notes" button usually does the job)
- Upload the extension zip to the attachments for the release
- Publish the PR (this will create the tag)

Developing your own extension starting from this repo

This is basically a repository for a MapStore Extension. All the code of the extension is under js/extension directory. You can replace the plugins/Extension.js with your own file. and configure the project to develop your own application. See the dedicated section of the Readme of MapStore Extension for details

georchestra / mapstore2-longitudinal-profile

readme