d3 javascript tutorial

("Path.country"). attr ("Class", "Country")//color the map block, the z-parameter of the function, which is the data object of the corresponding element (assigned by the data () function that was previously called). Style ("Fill ", function (z) {if (C.mapdisplaymode = =" Countries ") {//or for a specific length of time, data structure in data.min.jsvar y = MAPTIMEDATA[C.MAPSCOPE][C.MAPD Isplaymode][z.id].t;var x = d (y); Judging the color level return x} else {return c.mapoptions[c.mapdisplay

== ' rect ') {var w = random (100) +20; var r = g.append ("rect"). attr ("Class", "Child"). attr ("X", Random (W idth). attr ("Y", random (height)). attr ("width", W) . attr (' height ', W). attr ("Fill", Colors (count)); Count + +; }//random lines else if (cmd== ' line ') {var l= g.append ("Line '). attr ("Class", "Child"). attr ("x1", random (width)) . attr ("Y1", random (height)). attr ("X2", Random (width)) .

the SVG range of issues * * So, in the tutorial, all use this method */function Buildtip (data) {var t = "#tooltip"; Chinag.selectall ("path"). Data (data, function (d) {return d.id; }). On ("MouseOver", function (d) {d3.select (T). Style ("left", d3.e Vent.x + "px"). Style ("Top", D3.

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

Date: 2012-6-30 Source: gbin1.com Online Demo There are many powerful chart class libraries. Today we will introduce nvd3.js, which is based on the well-known d3.js class library. It is designed to help you create reusable d3.js charts and chart components without reducing the powerful functions of d3.js. This class library is very new and has many component

Online DemoIf you want to create a nice text cloud or tag cloud effect, you can consider using D3-cloud, which is an awesome open source font cloud effect JavaScript class library, based on the well-known d3.js, can help you generate similar wordle.com style fonts or tag cloud effects. This class library uses the HTML5 canvas to generate the font effect, and the

Matplotlib can be used to create very beautiful and precise mathematical graphs:But sometimes it's time to exchange ideas. Do not want to be so rigorous formal, want to use that kind of relaxed, graffiti-style graphics:The MATLAB xkcdify project can be used to generate the above graffiti works:Https://github.com/slayton/matlab-xkcdifyJust this article will introduce the use of JavaScript D3 library to gener

Matplotlib can be used to create beautiful and precise mathematical graphs: However, sometimes you don't want to be so rigorous and formal when talking about ideas. You want to use a simple, graffiti-style image: The MATLAB XKCDify project can be used to generate the above graffiti: Https://github.com/slayton/matlab-xkcdify However, this article will introduce how to use the Javascript D3 library

Reference Type of the JavaScript getting started tutorial and javascript getting started tutorial Reference Type A reference type is a data structure used to organize data and functions together. It is also often called a class, but this name is not appropriate. Although ECMAScript is technically an object-oriented lan

JavaScript Tutorial Series 49:javascript Tutorial: The prototype chain is immutable

JavaScript: elementary JavaScript tutorial (6). The Javascript tutorial uses the internal Object System of the browser to interact with HTML documents. It is used to organize and package related elements for program designers, so as to reduce the work of programmers and impr

This tutorial provides a relatively complete basic knowledge for those who have not been familiar with JavaScript, but only limited to the basic knowledge. JavaScript reference This tutorial provides a relatively complete basic knowledge for those who have not been familiar with J