d3 bootcamp

Now let's start with d3.js to deal with the first simple question, and look at the following code:[html]View PlainCopy html> head> meta charset="utf-8"> title>helloworldtitle> head> body> P>hello World 1P> p>hello World 2P> Body> html> If you have studied html, you should know that two lines of text will be printed on the screen, such as:What if you want to use JavaScript to change these two lines of

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.The cluster diagram (Cluster) pass is often used to denote inclusion with the included relationship.Now we're giving the data. and visualize it. The contents of the data are: some of the provinces included in China, some of the cities included in the provinces.We say that the data file is written in a JSON file and then read with D3.JSO

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.This section is a mechanical-oriented map of China, combined with sections 9.2 and 10, where users can drag various provinces of China.The data is a simplified Chinese map file in section 10.1: China_simplify.json1. Define each functionvar projection = D3.geo.mercator (). Center ([107]). Scale (850) . Translate ([WIDTH/2, HEIGHT/2]);

This article brings you the content is about how to use CSS and D3 to implement a set of colored lights (with code), there is a certain reference value, the need for friends can refer to, I hope to help you. Effect Preview Source code Download Https://github.com/comehope/front-end-daily-challenges Code interpretation Defines the DOM, which contains 9 elements representing 9 numbers: Center display: body { margin:0; HEIGHT:100VH; Display:f

The first test of the successful D3.js code needs to be opened in the IE9 and above browsers. Firefox and Google can also try. Delete "20"rows="8"id="con">"运行代码"type="button"id="btn"/>Test the successful D3.js code

This two-part article series will demonstrate a visualization technique that helps extract information from the data that has business value, and this article is the first part of the series. You'll see how to use Scalable Vector Graphics (SVG) and open source D3 JavaScript libraries to create visual representations that can be viewed through the browser, conveying information through shapes and colors. I'll demonstrate these techniques with some exam

This chapter discusses the events that are commonly used in mechanics diagrams, and then makes improvements to the "Advanced-Chapter 2.0" figure diagram, enabling the user to fix the dragged object.In "Getting Started-chapter 9.2" and "Advanced-Chapter 2.0", the following code is used:Force.on ("tick", function () {});The force here is the layout defined in the previous code, and the tick indicates when the motion is in progress every time a frame is updated. This is the most commonly used event

One, add a rectangle//Width and HeightvarW = 500;varH = 100;varDataSet = [5, 10, 13, 19, 21, 25, 22, 18, 15, 13, 11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];//Creating SVG elementsvarSVG = D3.select ("Body"). Append ("SVG"). attr ("Width", W). attr ("Height", h); Svg.selectall ("Rect"). Data (DataSet). Enter (). Append ("Rect"). attr ("X", 0). attr ("Y", 0). attr ("Width", 20). attr ("Height", 100);Second, add more than one rectangle//Width and Heightvar

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.Packing diagram (pack). Used to include the relationship with the included, also represents the weight of the individual objects, pass often use a round set of a circle to denote the former, with the size of the circle to indicate the latter.First look at the data used in this section: City2.jsonThis is the data for each city's affiliation. We are now going to use the layout of

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 New York to San Francisco ...). ）。 Follow the

The vertical histogram is drawn on the basis of the horizontal bar chart.1.html CodeDOCTYPE HTML>HTML> Head> MetaCharSet= "Utf-8" /> title>title> Head> Body> DivID= "Container">Div> Body> Scripttype= "Text/javascript"src= "Js/d3.js" >Script> Scripttype= "Text/javascript"src= "Js/shuzhuangtu.js" >Script>HTML>2.js Codevardata = [1,3,4,6,2,9,7,3,8],bar_width= 50, Bar_padding= 10, Svg_height= 500, Svg_width= (Bar_wid

":", "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

Objective I have already shared with you the two basic graphs of how to use histogram and line charts. Both charts have axes, and now a chart without axes--pie charts. Pie chart Implementation As before, we first put together a simple drawing frame and added an SVG canvas. But notice here that, for the sake of the arcs on the Gao diagram, we move the G element that combines these elements to the center of the canvas: Simulate data and transform To Gao graphs, we simulate some o

There are many parameters in the layout of the mechanics diagram, and this article will describe them individually.The Mechanics diagram layout in D3 is calculated using the Verlay integral method, which is a numerical method for solving Newton's motion equations and is widely used in molecular dynamics simulations and video games. The code that defines the layout is as follows:var force = D3.layout.force (

Summary:Animation Class APIFirst, the API uses1.1 d3.ease1.2 D3.timerStart a custom animation timer, invoking the specified function repeatedly until it returns true. There is no-to-cancel the timer after it starts, so make sure your timer function returns True when done!The animation begins the action, knowing that the method returns true before it stops. The animation cannot be stopped manually after it s

Source:var τ= 2 * MATH.PI;D3.layout.chord =function() { varChord = {}, chords, groups, Matrix, n, padding = 0, Sortgroups, sortsubgroups, sortchords; functionrelayout () {varsubgroups = {}, groupsums = [], Groupindex = D3.range (n), Subgroupindex =[], K, X, x0, I, J; Chords= []; Groups= []; K= 0, i =-1; while(++i N) {x= 0, J =-1; while(++j N) {x+=Matrix[i][j]; } groupsums.push (x); Subgro

DOCTYPE HTML>HTMLclass= "Um landscape min-width-240px min-width-320px min-width-480px min-width-768px min-width-1024px"> Head> title>title> MetaCharSet= "Utf-8"> Metaname= "Viewport"content= "target-densitydpi=device-dpi, Width=device-width, initial-scale=1, User-scalable=no, minimum-scale=1.0, maximum-scale=1.0 "> Linkrel= "stylesheet"href= "Css/fonts/font-awesome.min.css"> Linkrel= "stylesheet"href= "Css/ui-box.css"> Linkrel= "stylesheet"href= "Css/

Mechanical diagram (Force roadmap) combines the common people's life in the diagram, which is more interesting.This article will take this as evidence of how the graph is inserted into the external image and the mechanics of the text.One of the simplest mechanics diagrams is produced in Chapter 9.2. After a lot of friends have questions, the basic questions include: How to insert text next to a ball How to change a ball to another shape How to insert a picture How to limit t

My personal blog: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source. Thank you.This section of layout makes a pie chart. In the 9th section, the function of Layout is simply to transform data into data that is unsuitable for graphical data. Now use the following data:var DataSet = [30, 10, 43, 55, 13];This data should not be used directly in the appeased chart, we must convert it to an angle by calculation. This calculation does not need to be calculated manual

(). Duration(+). Delay ($)Thus, the overall graph changes after a delay of 500 milliseconds, with a change of 1000 milliseconds. Therefore, the total duration of the transition is 1500 milliseconds.Another example is when you specify a graphic (the data is bound to a graph):. Transition (). Duration(+). Delay (funtion (d,i) { return200 *i;})So, assuming there are 10 elements, then the 1th element is delayed by 0 milliseconds (because i = 0), the 2nd element is delayed by 200 milliseconds, th