{"id":187778,"date":"2024-11-11T17:06:19","date_gmt":"2024-11-11T09:06:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187778\/"},"modified":"2024-11-11T17:06:20","modified_gmt":"2024-11-11T09:06:20","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%9d%90%e6%a8%99%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%af%a6%e8%b8%90-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e5%ad%98%e6%94%be%e5%a4%a7%e9%87%8f%e5%9d%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187778\/","title":{"rendered":"\u6578\u64da\u5eab\u4e2d\u7684\u5750\u6a19\u6578\u64da\u5b58\u5132\u5be6\u8e10 (\u6578\u64da\u5eab\u8868\u5b58\u653e\u5927\u91cf\u5750\u6a19)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%9d%90%e6%a8%99%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%af%a6%e8%b8%90-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e5%ad%98%e6%94%be%e5%a4%a7%e9%87%8f%e5%9d%90-QCMkYpGkhW\">\u6578\u64da\u5eab\u4e2d\u7684\u5750\u6a19\u6578\u64da\u5b58\u5132\u5be6\u8e10 (\u6578\u64da\u5eab\u8868\u5b58\u653e\u5927\u91cf\u5750\u6a19)<\/h1>\n<p>\u96a8\u8457\u5730\u7406\u4fe1\u606f\u7cfb\u7d71\uff08GIS\uff09\u548c\u4f4d\u7f6e\u57fa\u790e\u670d\u52d9\u7684\u8208\u8d77\uff0c\u5750\u6a19\u6578\u64da\u7684\u5b58\u5132\u548c\u7ba1\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u5750\u6a19\u6578\u64da\u901a\u5e38\u4ee5\u7d93\u5ea6\u548c\u7def\u5ea6\u7684\u5f62\u5f0f\u5b58\u5728\uff0c\u4e26\u4e14\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u90fd\u626e\u6f14\u8457\u95dc\u9375\u89d2\u8272\uff0c\u4f8b\u5982\u5730\u5716\u670d\u52d9\u3001\u7269\u6d41\u7ba1\u7406\u548c\u57ce\u5e02\u898f\u5283\u7b49\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u653e\u5927\u91cf\u5750\u6a19\u6578\u64da\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u6280\u8853\u7d30\u7bc0\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e5%9d%90%e6%a8%99%e6%95%b8%e6%93%9a%e7%9a%84%e9%a1%9e%e5%9e%8b-QCMkYpGkhW\">\u5750\u6a19\u6578\u64da\u7684\u985e\u578b<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u5750\u6a19\u6578\u64da\u4e3b\u8981\u6709\u5169\u7a2e\u5f62\u5f0f\uff1a\u9ede\u5750\u6a19\u548c\u591a\u908a\u5f62\u5750\u6a19\u3002\u9ede\u5750\u6a19\u901a\u5e38\u7528\u65bc\u8868\u793a\u55ae\u4e00\u4f4d\u7f6e\uff0c\u800c\u591a\u908a\u5f62\u5750\u6a19\u5247\u7528\u65bc\u8868\u793a\u5340\u57df\u6216\u7bc4\u570d\u3002\u9019\u4e9b\u6578\u64da\u53ef\u4ee5\u7528\u4f86\u9032\u884c\u7a7a\u9593\u67e5\u8a62\u548c\u5206\u6790\u3002<\/p>\n<h3 id=\"1-%e9%bb%9e%e5%9d%90%e6%a8%99-QCMkYpGkhW\">1. \u9ede\u5750\u6a19<\/h3>\n<ul>\n<li>\u7d93\u5ea6\uff1a\u8868\u793a\u6771\u897f\u65b9\u5411\u7684\u5750\u6a19\u3002<\/li>\n<li>\u7def\u5ea6\uff1a\u8868\u793a\u5357\u5317\u65b9\u5411\u7684\u5750\u6a19\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e5%a4%9a%e9%82%8a%e5%bd%a2%e5%9d%90%e6%a8%99-QCMkYpGkhW\">2. \u591a\u908a\u5f62\u5750\u6a19<\/h3>\n<ul>\n<li>\u7531\u591a\u500b\u9ede\u7d44\u6210\uff0c\u5f62\u6210\u4e00\u500b\u5c01\u9589\u7684\u5340\u57df\u3002<\/li>\n<li>\u53ef\u7528\u65bc\u8868\u793a\u57ce\u5e02\u908a\u754c\u3001\u571f\u5730\u4f7f\u7528\u7b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88%e8%80%83%e9%87%8f-QCMkYpGkhW\">\u6578\u64da\u5eab\u8a2d\u8a08\u8003\u91cf<\/h2>\n<p>\u5728\u8a2d\u8a08\u5b58\u653e\u5750\u6a19\u6578\u64da\u7684\u6578\u64da\u5eab\u6642\uff0c\u6709\u5e7e\u500b\u95dc\u9375\u8003\u91cf\u56e0\u7d20\uff1a<\/p>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b%e9%81%b8%e6%93%87-QCMkYpGkhW\">1. \u6578\u64da\u985e\u578b\u9078\u64c7<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u5c0d\u65bc\u5b58\u5132\u5750\u6a19\u6578\u64da\u81f3\u95dc\u91cd\u8981\u3002\u5927\u591a\u6578\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08\u5982MySQL\u3001PostgreSQL\uff09\u90fd\u652f\u6301\u5730\u7406\u7a7a\u9593\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0cPostgreSQL\u7684PostGIS\u64f4\u5c55\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u5730\u7406\u7a7a\u9593\u529f\u80fd\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5b58\u5132\u548c\u67e5\u8a62\u5750\u6a19\u6578\u64da\u3002<\/p>\n<pre><code>CREATE TABLE locations (\n    id SERIAL PRIMARY KEY,\n    name VARCHAR(100),\n    geom GEOGRAPHY(POINT, 4326)\n);<\/code><\/pre>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e7%b4%a2%e5%bc%95-QCMkYpGkhW\">2. \u6578\u64da\u7d22\u5f15<\/h3>\n<p>\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u5c0d\u5750\u6a19\u6578\u64da\u9032\u884c\u7d22\u5f15\u662f\u5fc5\u8981\u7684\u3002\u4f7f\u7528\u7a7a\u9593\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u52a0\u5feb\u5730\u7406\u67e5\u8a62\u7684\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u5728PostGIS\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528GiST\u7d22\u5f15\u4f86\u52a0\u901f\u7a7a\u9593\u67e5\u8a62\u3002<\/p>\n<pre><code>CREATE INDEX idx_locations_geom ON locations USING GIST (geom);<\/code><\/pre>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e6%ad%a3%e8%a6%8f%e5%8c%96-QCMkYpGkhW\">3. \u6578\u64da\u6b63\u898f\u5316<\/h3>\n<p>\u5728\u8a2d\u8a08\u6578\u64da\u5eab\u6642\uff0c\u61c9\u8003\u616e\u6578\u64da\u7684\u6b63\u898f\u5316\uff0c\u4ee5\u6e1b\u5c11\u5197\u9918\u4e26\u63d0\u9ad8\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u5c0d\u65bc\u5750\u6a19\u6578\u64da\uff0c\u53ef\u4ee5\u5c07\u76f8\u95dc\u4fe1\u606f\u5206\u958b\u5b58\u5132\uff0c\u4f8b\u5982\u5c07\u5750\u6a19\u8207\u5730\u9ede\u4fe1\u606f\u5206\u958b\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u9748\u6d3b\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%9d%90%e6%a8%99%e6%95%b8%e6%93%9a-QCMkYpGkhW\">\u67e5\u8a62\u5750\u6a19\u6578\u64da<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u5750\u6a19\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u7a7a\u9593\u67e5\u8a62\u8a9e\u8a00\u4f86\u9032\u884c\u8907\u96dc\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u67e5\u8a62\u67d0\u500b\u7bc4\u570d\u5167\u7684\u6240\u6709\u9ede\uff1a<\/p>\n<pre><code>SELECT * FROM locations\nWHERE ST_DWithin(geom, ST_MakePoint(longitude, latitude)::geography, distance);<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u627e\u5230\u7279\u5b9a\u7bc4\u570d\u5167\u7684\u6240\u6709\u5750\u6a19\u9ede\uff0c\u4e26\u4e14\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e7%b6%ad%e8%ad%b7%e8%88%87%e6%9b%b4%e6%96%b0-QCMkYpGkhW\">\u6578\u64da\u7dad\u8b77\u8207\u66f4\u65b0<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u5750\u6a19\u6578\u64da\u53ef\u80fd\u6703\u767c\u751f\u8b8a\u5316\uff0c\u56e0\u6b64\u5b9a\u671f\u7dad\u8b77\u548c\u66f4\u65b0\u6578\u64da\u662f\u5fc5\u8981\u7684\u3002\u53ef\u4ee5\u8a2d\u8a08\u4e00\u500b\u81ea\u52d5\u5316\u7684\u7cfb\u7d71\u4f86\u5b9a\u671f\u6aa2\u67e5\u548c\u66f4\u65b0\u5750\u6a19\u6578\u64da\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u6642\u6548\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-QCMkYpGkhW\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u653e\u5927\u91cf\u5750\u6a19\u6578\u64da\u9700\u8981\u8003\u616e\u591a\u65b9\u9762\u7684\u56e0\u7d20\uff0c\u5305\u62ec\u6578\u64da\u985e\u578b\u7684\u9078\u64c7\u3001\u7d22\u5f15\u7684\u5efa\u7acb\u3001\u6578\u64da\u7684\u6b63\u898f\u5316\u4ee5\u53ca\u67e5\u8a62\u7684\u6548\u7387\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u5229\u7528\u5750\u6a19\u6578\u64da\uff0c\u70ba\u5404\u7a2e\u61c9\u7528\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5eab\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u548c\u9748\u6d3b\u7684\u64f4\u5c55\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6578\u64da\u5eab\u4e2d\u5750\u6a19\u6578\u64da\u7684\u9ad8\u6548\u5b58\u5132\u5be6\u8e10\uff0c\u4e86\u89e3\u5982\u4f55\u7ba1\u7406\u548c\u512a\u5316\u5927\u91cf\u5750\u6a19\u7684\u5b58\u653e\u8207\u67e5\u8a62\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-187778","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=187778"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187778\/revisions"}],"predecessor-version":[{"id":187779,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187778\/revisions\/187779"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}