{"published":"2015-07-18 21:28:58","author_url":"https://blog.hatena.ne.jp/derwind/","version":"1.0","provider_url":"https://hatena.blog","image_url":null,"author_name":"derwind","blog_url":"https://randommemory.hatenablog.com/","width":"100%","categories":["graphics","math-bezier"],"title":"\u3068\u3044\u3046\u3053\u3068\u3067\u3001B\u00e9zier\u66f2\u7dda\u3067\u56f2\u307e\u308c\u305f\u9818\u57df\u306e\u9762\u7a4d\u3068\u304b","height":"190","description":"\u3082\u3046\u8a08\u7b97\u3068\u304b\u3067\u304d\u308b\u6b73\u3058\u3083\u306a\u3044\u3057\uff01 - \u3089\u3093\u3060\u3080\u306a\u8a18\u61b6\u3068Green\u306e\u516c\u5f0f\u3068\u66f2\u7dda\u306e\u9762\u7a4d - \u3089\u3093\u3060\u3080\u306a\u8a18\u61b6\u3067\u6e96\u5099\u3057\u305f\u306e\u3067\u3002\u3068\u308a\u3042\u3048\u305a3\u6b21\u306e\u5834\u5408\u3060\u3051\u6c42\u3081\u3068\u304f\u3002 $P_j = (x_j, y_j),\\ 0 \\le j \\le 3$\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30dd\u30a4\u30f3\u30c8\u3068\u3059\u308b\u3068\u3001$t \\in [0,\\ 1]$\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u3001 \\begin{align} x(t) &= (1-t)^3 x_0 + 3t(1-t)^2 x_1 + 3t^2 (1-t) x_2 + t^3 x_3, \\\\\\ y(t) &= (1-t)^3 y_0 + 3t(1-t)^2 y_1 + 3t^2 (1-t) y_2 + t^3 y_3 \\e\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2015%2F07%2F18%2F212858\" title=\"\u3068\u3044\u3046\u3053\u3068\u3067\u3001B\u00e9zier\u66f2\u7dda\u3067\u56f2\u307e\u308c\u305f\u9818\u57df\u306e\u9762\u7a4d\u3068\u304b - \u3089\u3093\u3060\u3080\u306a\u8a18\u61b6\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6","provider_name":"Hatena Blog","type":"rich","url":"https://randommemory.hatenablog.com/entry/2015/07/18/212858"}