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Land Use Demonstrator Web App

Web app for visualisation of modelling and results from the Land Use Demonstrator project. See:

View online

https://Urban-Analytics-Technology-Platform.github.io/demoland-web

The dev branch can be previewed at https://Urban-Analytics-Technology-Platform.github.io/demoland-web/dev. (This is not guaranteed to always be functional!)

Running locally

The easiest way is probably using Docker:

git clone [email protected]:Urban-Analytics-Technology-Platform/demoland-web.git
cd demoland-web
docker build -t demoland_web .
docker run -p 80:80 demoland_web

Then, navigate to http://localhost in your browser.

Local development

npm run dev

For rapid prototyping and feature development, it's recommended to use Vite:

git clone [email protected]:Urban-Analytics-Technology-Platform/demoland-web.git
cd demoland-web
npm install
npm run dev   # this invokes Vite

Note that npm run dev only allows you to set up the app for one area at a time. Without any arguments, the default area of tyne_and_wear will be used. You can specify which area to work on by running npm run dev [AREA_NAME]. The valid values for [AREA_NAME] are the subdirectories of the /areas folder.

Vite's HMR functionality means that the website you see is updated any time any of the files change. However, note that if you change files inside the /areas folder (e.g. by adding a new scenario), it will not reload automatically: you will have to restart the server to see the changes live.

npm run build

To build the project for one specific area, use:

npm run build local [AREA_NAME]

(again, if unspecified, [AREA_NAME] defaults to tyne_and_wear.) The build output is placed inside /dist. You can then run

npm run preview

to launch a HTTP server from this directory on port 4173. You can then open http://localhost:4173/[AREA_NAME] in your browser.

Note that the build procedure is set up such that the website root (i.e. http://localhost:4173) redirects to the default area, i.e. http://localhost:4173/tyne_and_wear. If you have not built the files for tyne_and_wear before then this will give you a 404 error, which can be fixed by running npm run build local tyne_and_wear.

npm run build_all

To build the files for all areas at once (which is probably the more helpful option, unless you're specifically debugging issues with one area), use:

npm run build_all local

You can then again use npm run preview, like above.

Spinning up a new, customised copy of DemoLand

See CUSTOM_AREA.md.

Related repositories

This web app is powered by two other repositories:

  • demoland-project contains the modelling work which is responsible for the predicted indicator values, as well as a book discussing the project methodology and developer notes for the web app.
  • demoland-engine is a self-contained package which hosts the final trained models, as well as a REST API which is used for the custom scenario prediction backend.