{"url":"https://sakaik.hateblo.jp/entry/20260221/STX_MaximumInscribedCircle_func","provider_name":"Hatena Blog","categories":["mysql","gis","spatial","newfunc"],"blog_url":"https://sakaik.hateblo.jp/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/sakaik/20260221/20260221222944.png","published":"2026-02-21 22:31:46","blog_title":"sakaik\u306e\u65e5\u3005\u96d1\u611f\uff5e(T)\u7de8","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsakaik.hateblo.jp%2Fentry%2F20260221%2FSTX_MaximumInscribedCircle_func\" title=\" MySQL GIS\u62e1\u5f35\u95a2\u6570\uff1aSTX_MaximumInscribedCircle() - sakaik\u306e\u65e5\u3005\u96d1\u611f\uff5e(T)\u7de8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","type":"rich","version":"1.0","author_name":"sakaik","description":"MySQL Spatial Functions Plugin \u306e\u95a2\u6570\u52d5\u4f5c\u78ba\u8a8d\u4e2d\u3002\u3053\u306e\u95a2\u6570\u306f\u9762\u767d\u3044\u3002\u30dd\u30ea\u30b4\u30f3\u306e\u5185\u63a5\u5186\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u8fd4\u3057\u3066\u304f\u308c\u308b\u95a2\u6570\u3002 STX_MaximumInscribedCircle() POLYGON\u306b\u5185\u63a5\u3059\u308b\u300c\u6700\u5927\u5185\u63a5\u5186\u300d\u306e\u534a\u5f84\u3068\u306a\u308bLINESTRING\u3092\u8fd4\u3057\u307e\u3059\u3002LINESTRING\u306f\u4e2d\u5fc3\u304b\u3089\u300c\u6700\u8fd1\u63a5\u5883\u754c\u70b9\u300d\u3068\u3044\u3046\u5834\u6240\u3078\u306e\u7dda\u3068\u306a\u308a\u307e\u3059\u3002 \u52d5\u4f5c\u7d39\u4ecb SET @g=ST_GeomFromText('POLYGON((0 0, 10 0, 13 10, 0 15, 0 0))'); SELECT CAST(@g as polygon) , CAST( STX_Maximumi\u2026","author_url":"https://blog.hatena.ne.jp/sakaik/","title":" MySQL GIS\u62e1\u5f35\u95a2\u6570\uff1aSTX_MaximumInscribedCircle()","width":"100%"}