August 2017
Intermediate to advanced
500 pages
12h 3m
Japanese
Content preview from PythonとJavaScriptではじめるデータビジュアライゼーション
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349
16.3 DOM 要素の追加
分でしょう。
■
これまでは、既存の
DOM
要素の属性、スタイル、プロパティを操作してきました。これは便
利ですが、
D3
は
append
や
insert
メソッドを使ってプログラムで
DOM
要素の作成を開始すると
真価を発揮します。次はそれらを調べてみましょう。
16.3
DOM
要素の追加
DOM
要素の属性、スタイル、プロパティを選択して操作する方法を説明してきました。ここで
は、
D3
で要素の追加や挿入を行い、
DOM
ツリーをプログラムで変更する方法を紹介します。
まずは、
nobel-bar
プレースホルダを含む小さな
HTML
スケルトンから始めます。
<!DOCTYPE html>
<meta charset="utf-8">
<link rel="stylesheet" href="style.css" />
<body>
<div id='nobel-bar'></div>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.16
図
16-6
rect
棒の詳細の取得
図
16-7
リストタグからの
HTML
とテキストの取得
350
16 章 D3 入門
−
棒グラフ
/d3.js">
</script>
<script type="text/javascript" ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.