{"id":165379,"date":"2024-11-05T11:59:24","date_gmt":"2024-11-05T03:59:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/165379\/"},"modified":"2024-11-05T11:59:25","modified_gmt":"2024-11-05T03:59:25","slug":"%e7%a9%ba%e9%96%93%e6%95%b8%e6%93%9a%e5%ba%ab%e8%80%83%e8%a9%a6%e9%a1%8c%ef%bc%8c%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e4%bd%a0%e7%9a%84%e6%88%90%e7%b8%be%ef%bc%9f-%e7%a9%ba%e9%96%93%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/165379\/","title":{"rendered":"\u7a7a\u9593\u6578\u64da\u5eab\u8003\u8a66\u984c\uff0c\u5982\u4f55\u63d0\u5347\u4f60\u7684\u6210\u7e3e\uff1f (\u7a7a\u9593\u6578\u64da\u5eab\u8003\u8a66\u984c)"},"content":{"rendered":"<h1 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id=\"%e4%ba%86%e8%a7%a3%e7%a9%ba%e9%96%93%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-xPSHWmMdjx\">\u4e86\u89e3\u7a7a\u9593\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u9996\u5148\uff0c\u5b78\u751f\u9700\u8981\u5c0d\u7a7a\u9593\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5\u6709\u6e05\u6670\u7684\u7406\u89e3\u3002\u7a7a\u9593\u6578\u64da\u5eab\u662f\u5c08\u9580\u7528\u4f86\u5b58\u5132\u3001\u67e5\u8a62\u548c\u7ba1\u7406\u7a7a\u9593\u6578\u64da\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u9019\u4e9b\u6578\u64da\u901a\u5e38\u5305\u62ec\u5730\u7406\u4f4d\u7f6e\u3001\u5f62\u72c0\u548c\u5927\u5c0f\u7b49\u4fe1\u606f\u3002\u5e38\u898b\u7684\u7a7a\u9593\u6578\u64da\u5eab\u7cfb\u7d71\u5305\u62ecPostGIS\uff08\u57fa\u65bcPostgreSQL\uff09\u3001Oracle Spatial\u548cMicrosoft SQL Server\u7b49\u3002<\/p>\n<h3 id=\"%e5%ad%b8%e7%bf%92%e7%a9%ba%e9%96%93%e6%95%b8%e6%93%9a%e9%a1%9e%e5%9e%8b-xPSHWmMdjx\">\u5b78\u7fd2\u7a7a\u9593\u6578\u64da\u985e\u578b<\/h3>\n<p>\u5728\u7a7a\u9593\u6578\u64da\u5eab\u4e2d\uff0c\u4e86\u89e3\u4e0d\u540c\u7684\u7a7a\u9593\u6578\u64da\u985e\u578b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4e3b\u8981\u7684\u7a7a\u9593\u6578\u64da\u985e\u578b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ede\uff08Point\uff09<\/strong>\uff1a\u8868\u793a\u7279\u5b9a\u4f4d\u7f6e\u7684\u6578\u64da\uff0c\u5982\u57ce\u5e02\u7684\u7d93\u7def\u5ea6\u3002<\/li>\n<li><strong>\u7dda\uff08Line\uff09<\/strong>\uff1a\u8868\u793a\u9023\u63a5\u591a\u500b\u9ede\u7684\u6578\u64da\uff0c\u5982\u9053\u8def\u6216\u6cb3\u6d41\u3002<\/li>\n<li><strong>\u9762\uff08Polygon\uff09<\/strong>\uff1a\u8868\u793a\u5c01\u9589\u5340\u57df\u7684\u6578\u64da\uff0c\u5982\u570b\u5bb6\u6216\u6e56\u6cca\u7684\u908a\u754c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%8e%8c%e6%8f%a1%e7%a9%ba%e9%96%93%e6%9f%a5%e8%a9%a2%e8%aa%9e%e8%a8%80-xPSHWmMdjx\">\u638c\u63e1\u7a7a\u9593\u67e5\u8a62\u8a9e\u8a00<\/h2>\n<p>\u7a7a\u9593\u67e5\u8a62\u8a9e\u8a00\uff08\u5982SQL\uff09\u662f\u64cd\u4f5c\u7a7a\u9593\u6578\u64da\u5eab\u7684\u95dc\u9375\u5de5\u5177\u3002\u5b78\u751f\u61c9\u8a72\u719f\u6089\u5982\u4f55\u4f7f\u7528\u9019\u4e9b\u8a9e\u8a00\u4f86\u57f7\u884c\u67e5\u8a62\u3001\u63d2\u5165\u548c\u66f4\u65b0\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff0c\u7528\u65bc\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), distance);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0cST_DWithin\u51fd\u6578\u7528\u65bc\u67e5\u627e\u8ddd\u96e2\u7279\u5b9a\u9ede\u5728\u4e00\u5b9a\u7bc4\u570d\u5167\u7684\u6240\u6709\u4f4d\u7f6e\u3002<\/p>\n<h2 id=\"%e5%af%a6%e8%b8%90%e8%88%87%e6%87%89%e7%94%a8-xPSHWmMdjx\">\u5be6\u8e10\u8207\u61c9\u7528<\/h2>\n<p>\u7406\u8ad6\u77e5\u8b58\u56fa\u7136\u91cd\u8981\uff0c\u4f46\u5be6\u8e10\u7d93\u9a57\u540c\u6a23\u4e0d\u53ef\u6216\u7f3a\u3002\u5b78\u751f\u61c9\u8a72\u7a4d\u6975\u53c3\u52a0\u5be6\u9a57\u5ba4\u8ab2\u7a0b\u6216\u5be6\u7fd2\u6a5f\u6703\uff0c\u5c07\u6240\u5b78\u7684\u77e5\u8b58\u61c9\u7528\u5230\u5be6\u969b\u9805\u76ee\u4e2d\u3002\u9019\u4e0d\u50c5\u80fd\u52a0\u6df1\u5c0d\u7a7a\u9593\u6578\u64da\u5eab\u7684\u7406\u89e3\uff0c\u9084\u80fd\u63d0\u9ad8\u89e3\u6c7a\u554f\u984c\u7684\u80fd\u529b\u3002<\/p>\n<h3 id=\"%e5%8f%83%e5%8a%a0%e6%a8%a1%e6%93%ac%e8%80%83%e8%a9%a6-xPSHWmMdjx\">\u53c3\u52a0\u6a21\u64ec\u8003\u8a66<\/h3>\n<p>\u6a21\u64ec\u8003\u8a66\u662f\u6aa2\u6e2c\u5b78\u7fd2\u6210\u679c\u7684\u6709\u6548\u65b9\u6cd5\u3002\u5b78\u751f\u53ef\u4ee5\u901a\u904e\u53c3\u52a0\u6a21\u64ec\u8003\u8a66\u4f86\u719f\u6089\u8003\u8a66\u5f62\u5f0f\u548c\u984c\u578b\uff0c\u4e26\u5728\u6b64\u904e\u7a0b\u4e2d\u767c\u73fe\u81ea\u5df1\u7684\u8584\u5f31\u74b0\u7bc0\u3002\u6839\u64da\u6a21\u64ec\u8003\u8a66\u7684\u7d50\u679c\uff0c\u91dd\u5c0d\u6027\u5730\u9032\u884c\u5fa9\u7fd2\u548c\u52a0\u5f37\u3002<\/p>\n<h2 id=\"%e5%b0%8b%e6%b1%82%e5%b9%ab%e5%8a%a9%e8%88%87%e8%b3%87%e6%ba%90-xPSHWmMdjx\">\u5c0b\u6c42\u5e6b\u52a9\u8207\u8cc7\u6e90<\/h2>\n<p>\u5728\u5b78\u7fd2\u904e\u7a0b\u4e2d\uff0c\u5b78\u751f\u4e0d\u61c9\u8a72\u5bb3\u6015\u5c0b\u6c42\u5e6b\u52a9\u3002\u53ef\u4ee5\u5411\u6559\u6388\u3001\u540c\u5b78\u6216\u5728\u7dda\u793e\u5340\u8acb\u6559\u554f\u984c\u3002\u6b64\u5916\uff0c\u7db2\u4e0a\u6709\u8a31\u591a\u514d\u8cbb\u8cc7\u6e90\u548c\u8ab2\u7a0b\u53ef\u4f9b\u5b78\u7fd2\uff0c\u5982Coursera\u3001edX\u7b49\u5e73\u53f0\u63d0\u4f9b\u7684\u7a7a\u9593\u6578\u64da\u5eab\u76f8\u95dc\u8ab2\u7a0b\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xPSHWmMdjx\">\u7e3d\u7d50<\/h2>\n<p>\u63d0\u5347\u7a7a\u9593\u6578\u64da\u5eab\u8003\u8a66\u6210\u7e3e\u7684\u95dc\u9375\u5728\u65bc\u7406\u89e3\u57fa\u672c\u6982\u5ff5\u3001\u638c\u63e1\u67e5\u8a62\u8a9e\u8a00\u3001\u7a4d\u6975\u5be6\u8e10\u4ee5\u53ca\u5229\u7528\u5404\u7a2e\u8cc7\u6e90\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u5b78\u751f\u53ef\u4ee5\u5728\u8003\u8a66\u4e2d\u53d6\u5f97\u66f4\u597d\u7684\u6210\u7e3e\uff0c\u70ba\u672a\u4f86\u7684\u8077\u696d\u751f\u6daf\u6253\u4e0b\u5805\u5be6\u7684\u57fa\u790e\u3002\u5982\u679c\u4f60\u5c0d\u65bc\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> 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