{"image_url":"http://img.f.hatena.ne.jp/images/fotolife/o/obelisk2/20170125/20170125141715.png","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fobelisk.hatenablog.com%2Fentry%2F2017%2F01%2F25%2F142139\" title=\"GTK+\u3067\u843d\u66f8\u304d 4\uff08Ruby\uff09 - Camera Obscura\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://obelisk.hatenablog.com/entry/2017/01/25/142139","version":"1.0","blog_url":"https://obelisk.hatenablog.com/","provider_url":"https://hatena.blog","description":"\u5f15\u304d\u7d9a\u304d Gem 'oekaki' \u3067\u843d\u66f8\u304d\u3067\u3059\u3002 oekaki | RubyGems.org | your community gem host GTK+\u3067\u304a\u7d75\u304b\u304d\u3057\u3066\u307f\u305f\uff08Ruby\uff09 - Camera Obscura Ruby \u30b3\u30fc\u30c9\u3002 require 'oekaki' include Math L = 300; O = L / 2 R = 140 step = 20 i = 0 Oekaki.app width: L, height: L do draw do color(0, 0, 0) rectangle(true, 0, 0, L, L) color(0x87 * 256, 0xc\u2026","height":"190","type":"rich","published":"2017-01-25 14:21:39","categories":["Ruby","Gem 'oekaki'"],"author_url":"https://blog.hatena.ne.jp/obelisk2/","width":"100%","author_name":"obelisk2","provider_name":"Hatena Blog","title":"GTK+\u3067\u843d\u66f8\u304d 4\uff08Ruby\uff09","blog_title":"Camera Obscura"}