づだ

<code>TransformationController</code> の <code>.value</code>
<iframe id="zenn-embedded__c03d27cacac25" src="https://embed.zenn.studio/card#zenn-embedded__c03d27cacac25" data-content="https%3A%2F%2Fapi.flutter.dev%2Fflutter%2Fvector_math_64%2FMatrix4-class.html" frameborder="0" scrolling="no" loading="lazy"></iframe><a href="https://api.flutter.dev/flutter/vector_math_64/Matrix4-class.html" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://api.flutter.dev/flutter/vector_math_64/Matrix4-class.html</a>

参考になりそうな記事
<iframe id="zenn-embedded__9e906af80bc7" src="https://embed.zenn.studio/card#zenn-embedded__9e906af80bc7" data-content="https%3A%2F%2Fqiita.com%2Fwim%2Fitems%2Fe45609574edf6f190ba6" frameborder="0" scrolling="no" loading="lazy"></iframe><a href="https://qiita.com/wim/items/e45609574edf6f190ba6" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://qiita.com/wim/items/e45609574edf6f190ba6</a>

実現したいこと
<img src="https://storage.googleapis.com/zenn-user-upload/d0dc73c9bdd9-20230316.gif" alt loading="lazy" class="md-img">

現状 
なんか、はみ出したりする
<img src="https://storage.googleapis.com/zenn-user-upload/cfcd794c404c-20230316.gif" alt loading="lazy" class="md-img">

とりあえず、ズーム値3段階とかでやってみる