Add some more roadmapping...

This looks very interesting, but could use some description of what it is trying to do, and what it is trying to fix. I think it is
providing a draw-time interface to the data, including converting to array, and handling any unit conversion. I think it does this in a viewport cognizant way so that subsampling can also be handled by the wrapper? But I'm not clear on that from the examples.

All the examples should get a few more sentences, and a bit of explanation.

I appreciate that this is all proof-of-concept, not for user consumption, but I think writing some of these things down will really help clarify objectives at this point.

まず、リポジトリの例と既存のデータコンテナの動作を確認し、プロジェクトが何を実現しようとしているのかを把握します。特に、描画時のインターフェース、配列変換、単位変換、viewport の認識、サブサンプリングを確認してください。各例に説明用の文をいくつか追加し、例から proof of concept を理解できる程度に、目的と動作を明確に文書化してください。