This is a Next.js project bootstrapped with create-next-app.

Getting Started

First, run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev

Open http://localhost:3000 with your browser to see the result.

You can start editing the page by modifying app/page.tsx. The page auto-updates as you edit the file.

This project uses next/font to automatically optimize and load Inter, a custom Google Font.

Learn More

To learn more about Next.js, take a look at the following resources:

• Next.js Documentation - learn about Next.js features and API.
• Learn Next.js - an interactive Next.js tutorial.

You can check out the Next.js GitHub repository - your feedback and contributions are welcome!

Deploy on Vercel

The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.

Check out our Next.js deployment documentation for more details.

Docker

To run the app in a docker container you can use the following commands:

docker build -t digital-twins .
docker run -p 3000:3000 digital-twins

Structure

The app is structured with a next.js app that uses the following pages and sections:

• app/(home): Contains the main page of the app.
• app/case-study-energy: Contains the case study page of the app.
• app/about: Contains the about page of the app.

In components folder there are the different sections of the app:

• home:

  • intro: Digital Twins intro section
  • section-1: Understanding digital twins
  • section-2: Unlocking climate potential
  • section-3: From data to impact
  • section-4: Unlocking future possibilities
  • section-5: Towards data streaming for efficient uptake by users

• energy:

  • intro: Case study intro section
  • section-1: Wind energy production
  • section-2: Digital twins are revolutionising the way to approach wind farm development and energy management.
  • section-3: Planning decisions in the wind energy sector
  • section-4: Exploring energy futures
  • section-5: Why storylines for energy futures?
  • section-6: Heatwaves scenarios
  • section-7: Unlocking Future Possibilities

• about:

  • intro: Hero section
  • section-1: Digital twins intro section
  • project-1: Gloria project section
  • project-2: Destination earth project section
  • project-3: nextGEMS section
  • project-4: EERIE section
  • acknowledgements: Acknowledgements section

Responsive

Please refer to the following link for more information on how to use Tailwind CSS for responsive design: https://tailwindcss.com/docs/responsive-design

The used breakpoints are:

• sm: 640px
• xl: 1280px

Videos

The videos are hosted on the public folder on hls format. HLS is a streaming protocol that was developed by Apple. It is widely used for streaming video on the internet. HLS is a protocol that breaks the overall stream into a sequence of small HTTP-based file downloads. Each download loads one short chunk of the overall video file. As the video plays, the client player requests the next chunk of the video file.

To compress the videos there is a bash script that uses ffmpeg.

To use the script you need to have ffmpeg installed on your machine. Follow the instructions on the website mentioned above to install it.

To compress the videos add the desired videos to the public/videos/to-compress folder and run the following command:

  sh public/videos/to-compress/compress-videos.sh

This script will compress any videos placed on this folder and output the compressed videos to the public/videos/stream-videos folder. Then they can be played by the VideoPlayer component or the Globe which is configured to use HLS.

The videos will be compressed to 3 different qualities depending on the output device. The videojs library will automatically select the best quality based on the user's internet connection.

If you open this script you can adjust video output quality the -b:v:0, -b:v:1 and -b:v:2 values to change the video quality.

3d Globe

The 3d globe is a component that uses react-three-fiber a react library to use Three.js.

The globes use either VideoMaterial or GlobeShaderMaterial to display the videos on the globe. The VideoMaterial uses the HLS videos to display the videos on the globe. The GlobeShaderMaterial uses a shader to emulate a translucent globe.

Metadata

Update the layout files in the app folder to change the metadata of the pages for SEO purposes.