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D3 learning: Map Projection Method in 12 in D3.js, d3d3. js Special thanks: 1. The D3API Chinese description of [Zhang tianxu] has been referenced on the official website; 2. The course series provided by [Shantou Hua] On ourd3js.com gave us at least one direction for these newcomers. I have to say that learning new technologies abroad is really a very difficult process. When I learned how to draw a map wit

Learning D3.js (hereinafter referred to as D3) also has a period of time, run D3 do a few projects. I found that Chinese D3 tutorials very few, foreign materials but require a certain degree of English reading ability (recommended site: Http://bl.ocks.org/mbostock), so the germination of writing a

[D3.js advanced series-6.0] Drag and drop applications (Drag) and d3.jsdrag Drag (Drag) is an important interactive method. This article describes how to use Drag and drop.1. Definition of drag D3.behavior. drag () can be used in D3 to define the drag behavior. var drag = d3

Learning D3.js (hereinafter referred to as D3) also has a period of time, run D3 do a few projects. I found that Chinese D3 tutorials very few, foreign materials but require a certain degree of English reading ability (recommended site: Http://bl.ocks.org/mbostock), so the germination of writing a

[D3.js advanced series-4.0] Draw arrows, d3.js4.0 Drawing in the SVG drawing area, when drawing a line and curve, you often need to add an arrow somewhere. This article describes how to add arrows to straight lines and curves in D3. So far, we have drawn D3 charts in the SVG drawing area. Although

You probably use a framework or standalone library to the load data into your apps, and if that's overkill for your needs ? What if you ' re just putting together a quick demo? This lesson demonstrates D3 's APIs for loading data on it own, as well as some helpful methods for inspecting your data a nd preparing it for use with D3.function LoadData () {D3.json ('D

Tall and essential! Analysis of D3.js contribution to products and d3.js contribution In this era of talking with data (the age of relying on faces to eat), there is no good presentation form (not a handsome and clear face) and the impact on the entire product, that's simple... In the field of data visualization competition, all users on the Internet pay great attention to front-end presentation of their

[D3.js advanced series-3.0] partition graph, d3.js3.0 The Partition graph is also a Layout of D3 ). This layout is very interesting. It can be made into a square or a circle. This article first introduces how to create a square partition graph, which is also the most basic form of a partition graph. A partition chart is also used to indicate the relationship bet

[Advanced series of D3.js-5.0] histogram, d3.js5.0 The Histogram is used to describe the probability distribution. D3 provides the Histogram layout Histogram for data conversion. Suppose there are arrays a = [10, 11, 11.5, 12.5, 13, 15, 19, 20 ~ The value range of 20 is divided into five segments: 10 ~ 12, 12 ~ 14, 14 ~ 16, 16 ~ 18, 18 ~ 20 Which of the following

[D3.js advanced series-9.0] interactive prompt box, d3.js9.0 In general, too many texts should not exist in charts. However, sometimes some text is required to describe certain graphic elements. Then, you can implement an interaction: When you move the mouse to a certain graphic element, a prompt box appears, containing the description text. This is a simple, universal notebook that applies to almost all ch

[D3.js pro series-4.0] matrix tree, d3.js4.0 A matrix tree (Treemap) is also an extension of hierarchical layout. areas are divided into rectangular sets based on data. The size and color of the rectangle are the reflection of data. As shown in figure 1, many portal websites arrange photos in rectangles of different sizes. This is the application of the matrix tree. Fig. 1 http://www.texastribune.org/2010/