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jmitani's profile
三谷 純 Jun MITANI
三谷 純 Jun MITANI
三谷 純 Jun MITANI
@jmitani

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三谷 純 Jun MITANI

@jmitani

筑波大学システム情報系教授('75生まれ)幾何/CG/折紙.東大卒/博士(工学)/ITベンチャー,Yahoo!,理化学研究所を経て現職.ISSEY MIYAKE 132.5シリーズ,映画「シン・ゴジラ」「デスノート LNW」,に登場する折紙のデザイン,三越伊勢丹グループoruorubag(2017)などに協力.

つくば市
mitani.cs.tsukuba.ac.jp
Joined June 2009

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    1. 三谷 純 Jun MITANI‏ @jmitani 1 Jun 2017

      同じ展開図から、形が違う箱を作れる。 詳しくはこちら 「複数の箱を作ることができる展開図」 - みたにっき@はてな http://junmitani.hatenablog.com/entry/20080622 pic.twitter.com/17fnO3Su1d

      2 replies 1,249 retweets 2,080 likes
      三谷 純 Jun MITANI‏ @jmitani 5 Jun 2017

      こちらは、同じ型紙から、3つの異なる箱を作れる例。 出典はJAISTの上原先生のところの研究論文 Common Developments of Three Incongruent Boxes of Area 30 https://link.springer.com/chapter/10.1007/978-3-319-17142-5_21 …pic.twitter.com/mwxdlqDhwx

      4:11 AM - 5 Jun 2017
      • 501 Retweets
      • 669 Likes
      • fumiba Akinori MUSHA 箱奴㌠ NoriakiOshita yukov 小泊徹彦 🌸 na 🌸 Yasuyuki Otokawa nbng
      1 reply 501 retweets 669 likes
        1. New conversation
        2. 三谷 純 Jun MITANI‏ @jmitani 5 Jun 2017
          Replying to @jmitani

          ただいま、JAIST上原先生の研究室のDaweiさんの研究成果を勉強中。 これはその中の1つ。 1辺が√2の立方体の展開図から、1辺が1の立方体を2つ作れる。 こちらで Rep-cube として紹介されています。 http://www.jaist.ac.jp/~uehara/course/2016/kyushu/ …pic.twitter.com/ZE7815fLf7

          1 reply 90 retweets 127 likes
        3. 三谷 純 Jun MITANI‏ @jmitani 16 Jun 2017
          Replying to @jmitani

          さらに追加で、1辺が2の立方体の展開図から、1辺が1の立方体が4つ作れる例。pic.twitter.com/jYJPvoVQm5

          2 replies 57 retweets 109 likes
        4. 三谷 純 Jun MITANI‏ @jmitani 16 Jun 2017
          Replying to @jmitani

          訂正版。先ほどのは、一部に間違いがありました。最近ミスが多いなあ。 1辺が2の立方体の展開図から、1辺が1の立方体が4つ作れる例。 JAIST 上原研究室の成果で示されたパターンです。pic.twitter.com/y7nH4sS9vv

          1 reply 40 retweets 96 likes
        5. 三谷 純 Jun MITANI‏ @jmitani Jun 23
          Replying to @jmitani

          これまでに、上原先生の研究に触発されて、その成果を可視化するためのアニメーションをいくつか作ってきました。 同じ形の展開図から異なる箱が作れたり、大きさが違う立方体が作れたりする様子を確認できます。 楽しいです!

          0 replies 3 retweets 20 likes
        6. End of conversation

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