D3.js for beginners
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This document introduces D3.js, a JavaScript library for data visualization. It discusses what data visualization is, who pioneered early graphical methods, and provides examples of NY Times interactive visualizations built with D3.js. It outlines the basic flow and concepts of D3.js, including data binding, scales that normalize data to output ranges, and method chaining to link data to DOM elements. Samples and galleries of D3.js visualizations are provided for learning.
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D3.js for beginners
- 1. D3.js for beginners What is data visualization ?
- 2. Kota Fujishiro Front end web developer Internship at LIG.inc
- 5. You can understand something vaguely at first sight.
- 6. William Playfair(1759 – 1823) He is a political economist and the founder of graphical methods of statistics.
- 7. www.nytimes.com/interactive/2012/05/17/business/dealbook/how- the-facebook-offering-compares.html
- 8. How to make data visualization?
- 10. The Most Detailed Maps You’ll See From the Midterm Elections http://www.nytimes.com/interactive/2014/11/04/upshot/senate-maps.html
- 12. A lot of samples https://github.com/d3/d3/wiki/Gallery
- 13. The basic flow of D3.js 1.Data(JSON,XML,XSV…etc) 2.Driven(Bind the data.Output follow the data.) 3.Documents
- 14. The basic idea to understand D3.js 1.MethodChain It similar with jQuery. d3. is same to $. Result of before method is input value of next method. 2.Scale Adjust input dataset to output range. d3.min : get minimum value of dataset. d3.max : get maximum value of dataset. range : designate maximum and minimum value of output range. 3,DataMethod It keeps data. And the we can select each data.
- 15. simple histogram
- 18. samples
- 19. samples
- 20. samples
- 21. samples
- 22. samples
- 23. About Data Binding The .enter() command matches the selectAll statement with the number of elements in the array/object, and determines the number of elements that will need to be created.
- 24. About Data Binding The .enter() command matches the selectAll statement with the number of elements in the array/object, and determines the number of elements that will need to be created.
- 25. About Scale Scales are functions that map an input domain to an output range.
- 26. About Scale For example, If you want to set these dataset to 0px to 450px line, you have to do normalization of numbers.
- 28. Future Tasks https://d3js.org/ 1. Get the data using web scraping and write Node.js. Express dynamic data visualization. 2. Learn how to write React.js with D3.js
- 29. Thanks!