July 2018
Intermediate to advanced
224 pages
3h 13m
Japanese
Content preview from 作って動かすALife ―実装を通した人工生命モデル理論入門
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付録A本書で使用しているオリジナルライブラリ
本書のサンプルプログラムでは、シミュレーション結果の可視化や、エージェントモデルの環境シミュレーション用の簡易ライブラリを利用しています。ここでは、それらの使い方について説明します。
A.1 Visualizer
alifebook_lib.visualizers内にあるXXXVisualizerクラスは、シミュレーション結果を可視化するためのクラスです。初期化後にupdateメソッドを呼ぶごとに画面が更新されます。
また、アプリケーション実行中はbool(visualizer)はTrueを返しますが、閉じるボタンを押すなどで終了するとFalseを返します。
以下は、典型的な使い方です。
visualizer = Visualizer()
― シミュレーションの初期化処理 ―
while visualizer:
― シミュレーションを進める処理 ―
visualizer.update(simulation_result)
以下に各クラスの初期化パラメータ、updateメソッドの引数、各クラス独自に使えるメソッドの紹介をします。
class ArrayVisualizer(width=600, height=600, history_size=600, value_range_min=0, value_range_max=1)
一次元配列を可視化するためのクラス
- updateの引数：
- NumPyの一次元配列
- 初期化パラメータ：
-
width, height (optional)
表示するウィンドウのサイズ
history_size (optional)
何個前の配列まで画面に表示するか
value_range_min, ...
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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.
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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.