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Summary: Update the d3 library to its last 6.x version available on https://github.com/d3/d3/releases This also requires updating the tooltip event handling of dots in `Chart.js` to avoid an `Uncaught TypeError: d3.event is undefined` per https://observablehq.com/@d3/d3v6-migration-guide#event-management linked from https://github.com/d3/d3/releases/tag/v6.0.0 Closes T15820 Test Plan: * Enable the Facts application, go to the Reports of a Project with task changes over time, look at charts, hover over data points, read the tooltip - e.g. on http://phorge.localhost/project/reports/1/ or http://phorge.localhost/maniphest/report/burn/ * Check HTML source of above URIs for the `<script type="text/javascript">` loading `d3.min.js` and open the JS file to verify the d3 version number bump. * Check Console of web browser's developer tools for no errors. Reviewers: O1 Blessed Committers, speck Reviewed By: O1 Blessed Committers, speck Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno Maniphest Tasks: T15820 Differential Revision: https://we.phorge.it/D25631
57 lines
2.3 KiB
Markdown
57 lines
2.3 KiB
Markdown
# D3: Data-Driven Documents
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<a href="https://d3js.org"><img src="https://d3js.org/logo.svg" align="left" hspace="10" vspace="6"></a>
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**D3** (or **D3.js**) is a JavaScript library for visualizing data using web standards. D3 helps you bring data to life using SVG, Canvas and HTML. D3 combines powerful visualization and interaction techniques with a data-driven approach to DOM manipulation, giving you the full capabilities of modern browsers and the freedom to design the right visual interface for your data.
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## Resources
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* [Introduction](https://observablehq.com/@d3/learn-d3)
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* [API Reference](https://github.com/d3/d3/blob/master/API.md)
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* [Releases](https://github.com/d3/d3/releases)
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* [Examples](https://observablehq.com/@d3/gallery)
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* [Wiki](https://github.com/d3/d3/wiki)
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## Installing
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If you use npm, `npm install d3`. Otherwise, download the [latest release](https://github.com/d3/d3/releases/latest). The released bundle supports anonymous AMD, CommonJS, and vanilla environments. You can load directly from [d3js.org](https://d3js.org), [CDNJS](https://cdnjs.com/libraries/d3), or [unpkg](https://unpkg.com/d3/). For example:
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```html
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<script src="https://d3js.org/d3.v6.js"></script>
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```
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For the minified version:
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```html
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<script src="https://d3js.org/d3.v6.min.js"></script>
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```
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You can also use the standalone D3 microlibraries. For example, [d3-selection](https://github.com/d3/d3-selection):
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```html
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<script src="https://d3js.org/d3-selection.v2.js"></script>
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```
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D3 is written using [ES2015 modules](http://www.2ality.com/2014/09/es6-modules-final.html). Create a [custom bundle using Rollup](https://bl.ocks.org/mbostock/bb09af4c39c79cffcde4), Webpack, or your preferred bundler. To import D3 into an ES2015 application, either import specific symbols from specific D3 modules:
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```js
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import {scaleLinear} from "d3-scale";
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```
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Or import everything into a namespace (here, `d3`):
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```js
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import * as d3 from "d3";
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```
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In Node:
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```js
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const d3 = require("d3");
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```
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You can also require individual modules and combine them into a `d3` object using [Object.assign](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign):
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```js
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const d3 = Object.assign({}, require("d3-format"), require("d3-geo"), require("d3-geo-projection"));
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```
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