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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377
16.12 まとめ
続時間で更新する方法を指定できます。デフォルトのイージング関数は
cubic-in-out
（
https://
github.com/d3/d3-3.x-api-reference/blob/master/Transitions.md#d3_ease
）ですが、
quad
（遷移が進むにつれて速度が上がる）や、
bounce
と
elastic
（ほぼ期待どおりに変更に弾むよう
な感覚を与える）なども指定できます。また、
sin
もあり、最初は速度が上がり、終わりに向け
て遅くなります。さまざまなイージング関数のわかりやすい説明は
http://easings.net/
を参照
し、
D3
で利用できるほとんどのイージング関数の簡潔で素晴らしいデモは
http://bl.ocks.org/
hunzy/9929724
を参照してください。
Gizma
（
http://gizma.com/easing/
）には、さまざまな
イージング関数を可視化するために使える小さく優れたアプリケーションがあります。
D3
で利用できるイージング関数がニーズを満たしていない場合やかなり意欲的な取り組みをし
ている場合には、ほとんどの場合と同様に自作して微妙な要件に合わせることができます。
tween
メソッドを使うと、細かく制御することができます。
更新パターンと見た目のよい遷移が追加でき、これで
Nobel-viz
棒グラフは完成です。常に改良
の余地がありますが、現時点では十分です。ノーベル賞可視化の別の要素に進む前に、この大きな
16 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.