Information-Visualization

LMU-WS20/21-IV-Group 28-COVID Visualization

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Introduction

This is an information visualization project on the status of COVID-19 in the various German states.
It is a group project of Ludwig-Maximilians-Universität München(LMU) information visualization course.

Project Version

There are two main versions of the project in the development process, which are built through the express on backend and react on frontend.
The react version is an optimized and upgraded version of express, and it has been deployed to the remote server of LMU. It can be accessed through this URL: http://www.cip.ifi.lmu.de/~zhuw/

Team members

• Wenfeng Zhu (Master Human-Computer Interaction)
• Shaohua Tong (Master Computer Science)
• Yukun Chen (Master Computer Science)
• Chenke Xie (Master Computer Science)
• Shuaicong Wu (Master Computer Science)

Install

This project uses node and npm. Go check them out if you don't have them locally installed.
You will need to go into this folder

$ cd iv-react  or  $ cd iv-express 

Then you will need to install the necessary packages.

$ npm install

At last you should manually start React/Express app.

$ npm start

Then open the http://localhost:3000/ (Express: http://localhost:9000) to run the web-page.

Feature Description(React Version)

The website has a total of five interfaces, and the front-end routing method is used to achieve interface jumps, and does not involve back-end data interaction.

Home Page:

Homepage	Homepage-Navbar

Epidemic Map

• Color based on the epidemic situation and mousemove
• Zoom function based on mouse click
• Data interaction with other components

Histogram-1

• Histogram-1: Displays daily the data of new infections and total infections from March to November.
• The epidemic data of all of Germany is displayed by default, and it will switch to a different state with the click of the map component.
• With horizontal axis zoom (time) function.

Histogram-2

• Histogram-1: Displays daily the data of recovers and death from March to November.
• The epidemic data of all of Germany is displayed by default.
• With horizontal axis zoom (time) function.

Homepage-Heatmap	Homepage-Heatmap-3D

Heatmap

• Displays the daily data new cases of each state in germany
• Provide 2D and 3D versions of Heatmap.
• The heat map can be dragged and zoomed with the mouse to facilitate observation from different angles.

Policies Page:

Epidemic Map

-same as Home Page

Line Chart

• The epidemic data of all of Germany is displayed by default, and it will switch to a different state with the click of the map component.
• There are some scattered points in the whole chart to represent that a certain policy is released at a certain time.
• Clicking on a scatter point to display specific information about the policy in the Text Area below.
• With horizontal axis zoom (time) function.

Text Area

• By default, the guidance information that guides the user to click on the scattered points is displayed.
• After the user clicks on a scatter point, the corresponding policy information is displayed.

Population and Economy Page

• Pie chart based on polar coordinates。
• The user can select the corresponding month data.
• The pie chart ratio represents the corresponding population density or GDP per capita, and the polar coordinate represents the average number of new infections per state in the current month.
• The zoom function through the mouse wheel.

PopulationPage	EconomyPage

Infor Page

• Brief introduction of the project and members.

Project Process