現(xiàn)在網(wǎng)絡(luò)上又有越來(lái)越多的免費(fèi)的JavaScript圖表圖形繪制插件。我之前給一家網(wǎng)站做過(guò)復(fù)雜的圖形，我們用的是 highchart。在那段時(shí)間，沒(méi)有很多可供選擇的插件。但現(xiàn)在不同了，很容易就可以找到很多功能非常不錯(cuò)的圖表庫(kù)。個(gè)人而言，此類插件的上升，是因?yàn)椋?/p>

1. Flash 過(guò)去是最佳解決方案，但很多人多在從那遷移；

2. 現(xiàn)代瀏覽器及其更強(qiáng)大的計(jì)算能力，使其在轉(zhuǎn)化繪制實(shí)時(shí)數(shù)據(jù)方面的能力更佳；

3. 繪制矢量圖的不同技術(shù)愈發(fā)成熟：VML、SVG 和 Canvas。

當(dāng)然了，你需要仔細(xì)選擇，以符合自身需求。正如前面提到的，正因使用了各種技術(shù)，因此一些支持Canvas的插件僅需要一個(gè)現(xiàn)代瀏覽器。

在這篇文章中，我們已收集 13 個(gè)JavaScript圖表和圖形繪制插件。少數(shù)是獨(dú)立的框架，大多數(shù)支持條圖、線圖、餅圖等基本圖形，很多甚至支持更加復(fù)雜的圖形，比如：維恩圖、熱圖、進(jìn)化樹(shù)、二維散點(diǎn)圖、二維散點(diǎn)氣泡圖、三維散點(diǎn)圖等。相信你應(yīng)當(dāng)能在這個(gè)列表中找到所需的。

1. Flotr2

Flotr2 是個(gè)獨(dú)立框架庫(kù)，支持HTML5圖表和圖形。它是 flotr 的一個(gè)分支版本，移除了 Prototype 依賴性，并且有很多改進(jìn)。支持：線圖、條圖、蠟狀圖、餅圖、氣泡圖。諸如 IE6 類的老瀏覽器也支持。

2. Rickshaw

Rickshaw 是個(gè)用于創(chuàng)建交互式時(shí)序圖的JS工具。它依賴 D3 可視化庫(kù)和其他一些 jQuery 和 jQuery UI 的插件。

3. D3

D3 是一款著名且高效的可視化庫(kù)。

4. Awesome Chart JS

AwesomeChartJS 是個(gè)簡(jiǎn)潔的JS庫(kù)，用于基于HTML5畫(huà)布元素的圖表。

5. canvasXpress

CanvasXpress is a javascript library based on the tag implemented in HTML5. I developed this library as the core visualization component for our BMS systems biology platform. It supports crazy amount of highly complicated charts and graphs.

6. Humble Finance

HumbleFinance is an HTML5 data visualization tool written as a demonstration of interactive graphing in HTML5. It is similar to the Flash tool on http://finance.google.com/. The tool itself is written entirely in JavaScript, using the Prototype and Flotr libraries. It can be used to display any two 2-D data sets of real numerical data which share an axis.

7. RGraph

RGraph is a HTML5 Javascript charts library that supports over 20 different types of charts. Using the new HTML5 canvas tag, RGraph creates these Javascript charts in the web browser, meaning quicker pages and less web server load. Using RGraph is an easy way of speeding up your website.

8. dygraphs

dygraphs is an open source JavaScript library that produces produces interactive, zoomable charts of time series. It is designed to display dense data sets and enable users to explore and interpret them. This is a lightweight solution and works in Internet explorer too.

9. HighChart

Highcharts is a charting library written in pure JavaScript, offering intuitive, interactive charts to your web site or web application. Highcharts currently supports line, spline, area, areaspline, column, bar, pie and scatter chart types. A famous chart/graph solution used by many well-known organization such as IBM, NASA, Siemens, HP etc.

10. gRaphael

gRapha?l’s goal is to help you create stunning charts on your website. It is based on Rapha?l graphics library. Check out the demos to see static and interactive charts in action. gRapha?l currently supports Firefox 3.0+, Safari 3.0+, Opera 9.5+ and Internet Explorer 6.0+.

11. jqPlot

jqPlot is a plotting and charting plugin for the jQuery Javascript framework. jqPlot produces beautiful line, bar and pie charts with many features.

12. JS Charts

JS Charts is a JavaScript based chart generator that requires little or no coding. With JS Charts drawing charts is a simple and easy task, since you only have to use client-side scripting (i.e. performed by your web browser). No additional plugins or server modules are required. Just include our scripts, prepare chart data in XML, JSON or JavaScript Array and your chart is ready!

13. JSXGraph

JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser. It is implemented completely in JavaScript, does not rely on any other library, and uses SVG, VML, or canvas. JSXGraph is easy to embed and has a small footprint: less than 100 KByte if embedded in a web page. No plug-ins are required! Special care has been taken to optimize the performance.

原文：Kevin Liew   編譯：伯樂(lè)在線 – 黃利民