d3 js chart library

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 javas

particular state.2 drawing a simple Sankey diagram with D3D3 provides a Sankey plug-in that can be used to convert the data from the input node-connection to the intermediate data used by the Sankey diagram layout. These intermediate data can be easily combined with the SVG rectangle element ( rect ) to draw the node, combined with the path element ( path ) to draw the link. makes it convenient to draw Sankey diagram with D3. Figure 1 shows the drawi

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

Objective In a nutshell, D3.js,d3.js is a JavaScript library based on data manipulation documents. D3 helps you to bring energy to your data by using HTML, SVG, and CSS. D3 values Web

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 i

layout works by converting data that is not suitable for drawing into data that is appropriate for drawing. For beginners to understand, the role of layout can be interpreted as: data Conversion .3. What are the layouts?D3 offers a total of 12 layouts:Pie chart (PIE), Force-directed graph (forces), chord graph (Chord), tree, cluster diagram (Cluster), bundle (bundle), Pack Diagram (Pack), histogram (histog

A few days ago to see someone in the community posted a comparison of three more mainstream chart plug-ins, we all have a heightcharts love, but no good director of personal hobbies D3 more, so my chart for the first time so gave D3This is a chart I made with d3+react, but b

Before writing a demo There are some things to use D3 to achieve some effects but in many forums to find resources can not find the way to use the d3.js in Vue, npm above the D3 relatively speaking is very impersonal no say on webpack how to use D3.jsFinally, a long time to

the security mechanism prohibits cross origin request and does not allow direct read of local files, so we need a webserver to server our data.The following commands can be executed in CMD in the window environment (provided that NPM is installed)Install http-serverhttp-server C:\D3TestIn this way, we start a server, the browser accesses the http://localhost:8080/index.html, and then we can see the loaded data in the console.An array of JSON objects returned by

The scale is a very important concept in D3. It is not a good way to use the size of a numeric value to represent pixels directly when drawing a drawing, and this chapter is about solving this problem.first, why need scaleThe previous chapter produced a column chart with an array that, when plotted, directly assigns a value of 250 to the width of the rectangle, that is, the width of the rectangle is 250 pix

) {return width-padding.right*0.8;}). attr ("Y", function (d,i) {return padding.top * 2 + labheight * i;}). attr ("dy", LABRADIUS/2). Text (function (d) {return d.name;});Use circles and text as labels to add to the right side of the chart. As shown in final result 4.Figure 4Full code Please click the following URL, and then right click to view the source code:Http://www.ourd3js.com/demo/G-3.0/stack.htmlThank you for reading.Document Information

My personal blog is:www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you. 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 that as long as you finish this series, you can complete most of the visualization work in the case of query.The earlie

A server to do mobile app application in a cloud, very curious if you do not modify the SSH port, how many times a day will be violently cracked? With this question, look at the/var/log/messages log, grep How many of the "Failed" in the log records ...Because the messages log will have logrotate, so:grep "^mar 1"/var/log/messages* |grep "Failed" | Wc-lGet the number of violent hacks from 1th to 7th respectively this month, respectively:2015-03-07,41262015-03-06,334992015-03-05,800962015-03-04,70

If you want to know more about D3.js, welcome to http://www.ourd3js.com/discussion D3 is a javascript class library for Data-Driven Documents. If you do not know what javascript is, learn about javascript first. To put it simply, D3.js