chart js vs d3

The full name of D3 is (Data-driven documents), as the name implies, is a data-driven document. listen to the name a bit abstract, say simple, is actually a JavaScript function library, use it is mainly used to do data visualization. D3 provides a variety of easy-to-use functions that greatly simplify the operation of JavaScript data. Since it is inherently javascript, it can do all the work with JavaScript

D3.js A simple primerD3 is a JavaScript framework: The main purpose is to visualize data,So he developed it under JavaScript, and currently has the D3.js 3.0 and D3.js 4.0 versions.The use of the method is very simple, 1. Download

In general, there is not much text in the chart. However, sometimes you need some text to describe some graphical elements. Then, you can implement an interaction: when the user mouse slides to a graphic element, a prompt box appears with descriptive text. This is a simple, universal interaction that works on almost all charts. By customizing the appearance to the cue box, you can give the user a good experience.1. How to make a prompt boxThe Prompt b

Introduction and installation of "D3.js starter Series-0"Posted in 2014/06/12In recent years, visualization has become more and more popular, many newspapers and magazines, portals, news, media have a large number of use of visual technology, making complex data and text becomes very easy to understand, there is a proverb "a picture value in 1000 words", is indeed true. A variety of data visualization tools

D3 is currently a popular data visualization tool, through this article can have a preliminary understanding of D3. 1. What is D3? The full name of D3 is (Data-driven documents), as the name implies, is a data-driven document. Listen to the name a bit abstract, say simple, is actually a JavaScript function library, us

When plotting lines and curves in the SVG drawing area, it is often necessary to add arrows somewhere. This article describes how to add arrows to lines and curves in D3. So far, the chart we have drawn D3 is in the SVG plot area, although D3 can also be plotted with Canvas or WebGL, but SVG is the most common. So, us

This demand is actually quite clear, but the online search out of the tutorial is a mess, feel really need to summarize their own.D3.js is now widely used in data visualization, and with the continued development of big data, the framework is expected to become more prevalent in the future (it is said that its author Mike Bostock began full-time development, previously in charge of the New York Times data visualization engineer, he himself moved from

", "NodeName"). attr ("X", function (d) {return d.x;}). attr ("Y", function (d) {return d.y;}). attr ("DX", "0.5em"). attr ("dy", "1.5em"). Text (function (d) {return d.name + "" + D.GDP;});As shown in result 4.Figure 4Complete code, click the link below, and then right-view the source code:Http://www.ourd3js.com/demo/G-4.0/treemap.html4. Concluding remarksSo far, all the layouts in D3 have been explained. "Introductory Series" explains 6 layouts, "Ad

D3 New Topic Homepage In a blink of an eye, this introductory series has accumulated more than 22 articles, I think as d3.js this data visualization tool is enough to get Started. I believe just to read this Series. It is possible to complete most of the visualization work in the future with the aid of Queries.D3.js's Earliest v1.0 version was announced by

about.Word, workaround required: in D3, you can manually set what encoding to read the file .In "Advanced Series 1.0" and "Advanced Series 1.1", using the D3.csv and D3.TSV two functions, it is also mentioned that the difference is only the delimiter is different. Also mentioned, they are essentially D3.DSV functions,

value3. Use of Update and ExitWhen the corresponding element is too large (the number of bound data Now there are three P elements in the body, to bind an array of length less than 3 to the selection set of p, and then handle both the update and exit respectively.varDataSet = [3 ]; //Select the P element in bodyvarp = D3.Select("Body"). SelectAll ("P"); //Get the Update sectionvarUpdate =p.data (dataset);//Get exit SectionvarExit =update.exit ();//ha

D3.js, as a lightweight visual class library, makes it easy to bind data to Web interface elements for visualization. Yue Timor d3.js Introduction is a general look at the "D3js Data Visualization Combat" This book, D3 operation is very similar to the use of jquery, embodied

":", "Value": 3}, {"Source":, "target": 17 , "Value": 3}, {"source": "Target": 3}, {"source": "Target":, "Value": 3}, {"source": "Target": 2 0, "Value": 5}]} The data consists of two parts, dots (nodes) and edges (links), and the values of source and target represent the elements corresponding to the numeric subscript of the nodes array. Note that, regardless of the number of attributes of the nodes element, source and target temporarily point to a person's name, such as Source 1 target0 repr

({' id ': This.domid});},init:function () {varmap= This.map;on (map, ' Pan ', lang.hitch (This,this._pan)); On (map, ' Zoom-start ', lang.hitch (This,this._zoomstart)); O N (map, ' Zoom-end ', lang.hitch (this,this._zoomend)); This._initialize ();},_initialize:function () {This._removeallchildren (); This._draw ();},_removeallchildren:function () {dojo.empty (this.domid);},_draw: function () {if (!this.option.labelfields) {return;} for (vari=0;iPageUse D3