This time I will bring you a detailed explanation of the case of using d3.js in the Vue project. What are the precautions for using d3.js in the Vue project. The following is a practical case, let's take a look.
Before I wrote a Demo, some things needed to use d3 to achieve some effects, but I couldn’t find a way to use D3.js in Vue when looking for resources in many forums. D3 on npm can be said to be relatively It’s very inhumane and didn’t say anything about how to use D3.js on webpack
Finally, after struggling for a long time, I saw a foreign boss look at his case and successfully implement the use of D3 in the Vue project
FirstInstall
npm install d3 --save-dev
Just in case, then look at package.json
Installation completed
Before we begin, let's render a Vue component that uses regular D3 DOM manipulationRenders a simple line chart:
<script> import * as d3 from 'd3'; const data = [99, 71, 78, 25, 36, 92]; export default { name: 'non-vue-line-chart', template: '<p>', mounted() { const svg = d3.select(this.$el) .append('svg') .attr('width', 500) .attr('height', 270) .append('g') .attr('transform', 'translate(0, 10)'); const x = d3.scaleLinear().range([0, 430]); const y = d3.scaleLinear().range([210, 0]); d3.axisLeft().scale(x); d3.axisTop().scale(y); x.domain(d3.extent(data, (d, i) => i)); y.domain([0, d3.max(data, d => d)]); const createPath = d3.line() .x((d, i) => x(i)) .y(d => y(d)); svg.append('path').attr('d', createPath(data)); }, }; </script> <style> svg margin: 25px; path fill: none stroke: #76BF8A stroke-width: 3px </style>
The code is simple and easy to understand, but this is just A basic example. Because we are not using templates, more complex visualizations that require more operations and calculations would obscure the component's design and logic. Another caveat with the above approach is that we cannot use the scopedCSS property because D3 dynamically adds elements to the DOM.
can be implemented in a weird, but code-elegant way
<template> <svg> <g> <path></path> </g> </svg> </template> <script> import * as d3 from 'd3'; export default { name: 'vue-line-chart', data() { return { data: [99, 71, 78, 25, 36, 92], line: '', }; }, mounted() { this.calculatePath(); }, methods: { getScales() { const x = d3.scaleTime().range([0, 430]); const y = d3.scaleLinear().range([210, 0]); d3.axisLeft().scale(x); d3.axisBottom().scale(y); x.domain(d3.extent(this.data, (d, i) => i)); y.domain([0, d3.max(this.data, d => d)]); return { x, y }; }, calculatePath() { const scale = this.getScales(); const path = d3.line() .x((d, i) => scale.x(i)) .y(d => scale.y(d)); this.line = path(this.data); }, }, }; </script> <style> svg margin: 25px; path fill: none stroke: #76BF8A stroke-width: 3px </style>
is pretty cool, even though it doesn't expose any properties and the data is hardcoded , it separates the view from the logic very well, and uses Vue hooks, methods and dataobject, the phenomenon is the same as the picture above.
I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!
Recommended reading:
Summary of how to use nodejs log module winston
Summary of how to use watch in Vue
The above is the detailed content of Detailed explanation of cases using d3.js in Vue projects. For more information, please follow other related articles on the PHP Chinese website!

Yes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.

JavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.

C and JavaScript achieve interoperability through WebAssembly. 1) C code is compiled into WebAssembly module and introduced into JavaScript environment to enhance computing power. 2) In game development, C handles physics engines and graphics rendering, and JavaScript is responsible for game logic and user interface.

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver CS6
Visual web development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 Linux new version
SublimeText3 Linux latest version

SublimeText3 Mac version
God-level code editing software (SublimeText3)
