{"id":27958,"date":"2024-11-24T16:50:11","date_gmt":"2024-11-24T08:50:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/27958\/"},"modified":"2024-11-24T16:50:11","modified_gmt":"2024-11-24T08:50:11","slug":"r-tree%e6%98%af%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e5%ae%9e%e7%8e%b0%e7%a9%ba%e9%97%b4%e7%b4%a2%e5%bc%95%e7%9a%84%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/27958\/","title":{"rendered":"R-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173137104386387.jpg\" class=\"aligncenter\" title=\"R-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f\u63d2\u56fe\" alt=\"R-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>r-tree\u539f\u7406\u8be6\u89e3\uff1ar-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f<\/strong><\/p>\n<p><strong>1\u3001r-tree\u539f\u7406\u5256\u6790<\/strong><\/p>\n<p>r-tree\u662f\u4e00\u79cd\u591a\u7ef4\u7a7a\u95f4\u7d22\u5f15\u7ed3\u6784\uff0c\u57fa\u4e8e\u4ee5\u4e0b\u6838\u5fc3\u539f\u5219\uff1a<\/p>\n<ul>\n<li> <strong>\u8282\u70b9\u5206\u88c2\uff1a<\/strong>\u5f53\u8282\u70b9\u4e2d\u6761\u76ee\u6570\u91cf\u8d85\u8fc7\u6700\u5927\u503c\u65f6\uff0c\u8282\u70b9\u5206\u88c2\u6210\u4e24\u4e2a\u65b0\u8282\u70b9\u3002<\/li>\n<li> <strong>\u8282\u70b9\u5408\u5e76\uff1a<\/strong>\u5f53\u8282\u70b9\u4e2d\u6761\u76ee\u6570\u91cf\u4f4e\u4e8e\u6700\u5c0f\u503c\u65f6\uff0c\u8282\u70b9\u53ef\u80fd\u4e0e\u76f8\u90bb\u8282\u70b9\u5408\u5e76\u3002<\/li>\n<li> <strong>\u6761\u76ee\uff1a<\/strong>\u8282\u70b9\u5305\u542b\u6761\u76ee\uff0c\u4ee3\u8868\u6570\u636e mbr\uff08\u6700\u5c0f\u8fb9\u754c\u77e9\u5f62\uff09\u6216\u6307\u5411\u5b50\u6811\u7684\u6307\u9488\u3002<\/li>\n<li> <strong>\u9009\u62e9\u987a\u5e8f\uff1a<\/strong>\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u4e2d\uff0c\u9009\u62e9\u5206\u88c2\u6216\u5408\u5e76\u8282\u70b9\u7684\u987a\u5e8f\u81f3\u5173\u91cd\u8981\u3002<\/li>\n<li> <strong>\u6700\u5c0f\u5316\u91cd\u53e0\uff1a<\/strong>\u5728\u6784\u5efa r-tree \u65f6\uff0c\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11\u8282\u70b9 mbr \u7684\u91cd\u53e0\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002<\/li>\n<\/ul>\n<p><strong>2\u3001java\u4e2d\u5b9e\u73b0r-tree<\/strong><\/p>\n<p>\u4e3a\u4e86\u7406\u89e3r-tree\u7684\u5b9e\u73b0\uff0c\u6211\u4eec\u4ee5java\u4e3a\u4f8b\uff1a<\/p>\n<p><strong>\u6982\u8ff0\uff1a<\/strong><\/p>\n<ul>\n<li>\u8282\u70b9\u6709\u4e24\u79cd\u7c7b\u578b\uff1a\u53f6\u5b50\u8282\u70b9\uff08\u5b58\u50a8mbr\u548c\u6570\u636e\uff09\u548c\u975e\u53f6\u5b50\u8282\u70b9\uff08\u5b58\u50a8\u5b50\u8282\u70b9\u548cmbr\uff09\u3002<\/li>\n<li>mbr\u5b58\u50a8\u4e00\u4e2a\u6570\u636e\u70b9\u7684\u8fb9\u754c\u77e9\u5f62\u3002<\/li>\n<li>\u63d2\u5165\uff1a\u5728\u8282\u70b9\u6ee1\u65f6\u5206\u88c2\u8282\u70b9\u3002<\/li>\n<li>\u5220\u9664\uff1a\u53ef\u80fd\u5bfc\u81f4\u8282\u70b9\u5408\u5e76\u3002<\/li>\n<li>\u67e5\u8be2\uff1a\u67e5\u627e\u4e0e\u7ed9\u5b9a\u641c\u7d22mbr\u76f8\u4ea4\u7684\u6240\u6709\u6570\u636e\u70b9\u3002<\/li>\n<\/ul>\n<p><strong>\u4ee3\u7801\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>\/\/ MBR\u7c7b\n\/\/ MBR\u5b58\u50a8\u6570\u636e\u70b9\u7684\u8fb9\u754c\u77e9\u5f62\nclass MBR {\n    double[] min;\n    double[] max;\n}\n\n\/\/ RTreeEntry\u7c7b\n\/\/ RTreeEntry\u5305\u542bMBR\u548c\u6570\u636e\nclass RTreeEntry { \n    MBR mbr;\n    Object data;\n}\n\n\/\/ RTreeNode\u7c7b\n\/\/ RTreeNode\u8868\u793a\u6811\u4e2d\u7684\u4e00\u4e2a\u8282\u70b9\nclass RTreeNode {\n    int count;\n    RTreeEntry[] entries;\n    \n    \/\/ \u6dfb\u52a0Entry\n    public void add(RTreeEntry entry) { }\n    \n    \/\/ \u5220\u9664Entry\n    public void remove(RTreeEntry entry) { } \n}\n\n\/\/ RTree\u7c7b\n\/\/ RTree\u8868\u793a\u6574\u4e2aR-tree\nclass RTree {\n    RTreeNode root;\n    \n    \/\/ \u63d2\u5165\n    public void insert(Point point) { }\n    \n    \/\/ \u5220\u9664\n    public void delete(Point point) { }\n    \n    \/\/ \u67e5\u8be2\n    public List&lt;RTreeEntry&gt; search(MBR searchMbr){ return new ArrayList&lt;&gt;();}\n}<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>3\u3001\u603b\u7ed3<\/strong><\/p>\n<p>r-tree\u7684\u9ad8\u6548\u6027\u6e90\u81ea\u5176\u57fa\u4e8e mbr \u7684\u591a\u7ef4\u7a7a\u95f4\u7ec4\u7ec7\uff0c\u6700\u5c0f\u5316\u91cd\u53e0\u5e76\u52a8\u6001\u9002\u5e94\u6570\u636e\u7684\u53d8\u5316\u3002\u5728java\u4e2d\uff0cr-tree\u7684\u5b9e\u73b0\u9700\u8981\u8003\u8651\u8282\u70b9\u5206\u88c2\u3001\u5408\u5e76\u548c\u67e5\u8be2\u4f18\u5316\u7b49\u95ee\u9898\u3002r-tree\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5730\u7406\u4fe1\u606f\u7cfb\u7edf\uff08gis\uff09\u3001\u56fe\u50cf\u5904\u7406\u7b49\u9886\u57df\uff0c\u4f5c\u4e3a\u5904\u7406\u9ad8\u7ef4\u7a7a\u95f4\u6570\u636e\u7684\u5f3a\u5927\u7a7a\u95f4\u7d22\u5f15\u5de5\u5177\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fR-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>r-tree\u539f\u7406\u8be6\u89e3\uff1ar-tree\u662f\u5982\u4f55\u9ad8\u6548\u5b9e\u73b0\u7a7a\u95f4\u7d22\u5f15\u7684\uff1f 1\u3001r-tree\u539f\u7406\u5256\u6790 r-tree\u662f\u4e00\u79cd\u591a\u7ef4\u7a7a\u95f4\u7d22\u5f15\u7ed3\u6784\uff0c\u57fa\u4e8e\u4ee5\u4e0b\u6838\u5fc3\u539f\u5219\uff1a \u8282\u70b9\u5206\u88c2\uff1a\u5f53\u8282\u70b9\u4e2d\u6761\u76ee\u6570\u91cf\u8d85\u8fc7\u6700\u5927\u503c\u65f6\uff0c\u8282\u70b9\u5206\u88c2\u6210\u4e24\u4e2a\u65b0\u8282\u70b9\u3002 \u8282\u70b9\u5408\u5e76\uff1a\u5f53\u8282\u70b9\u4e2d\u6761\u76ee\u6570\u91cf\u4f4e\u4e8e\u6700\u5c0f\u503c\u65f6\uff0c\u8282\u70b9\u53ef\u80fd\u4e0e\u76f8\u90bb\u8282\u70b9\u5408\u5e76\u3002 \u6761\u76ee\uff1a\u8282\u70b9\u5305\u542b\u6761\u76ee\uff0c\u4ee3\u8868\u6570\u636e mbr\uff08\u6700\u5c0f\u8fb9\u754c\u77e9\u5f62\uff09\u6216\u6307\u5411\u5b50\u6811\u7684\u6307\u9488\u3002 \u9009\u62e9\u987a\u5e8f\uff1a\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u4e2d\uff0c\u9009\u62e9\u5206\u88c2\u6216\u5408\u5e76\u8282\u70b9\u7684\u987a\u5e8f\u81f3\u5173\u91cd\u8981\u3002 \u6700\u5c0f\u5316\u91cd\u53e0\uff1a\u5728\u6784\u5efa r-tree \u65f6\uff0c\u6700\u5927\u7a0b\u5ea6\u5730\u51cf\u5c11\u8282\u70b9 mbr \u7684\u91cd\u53e0\uff0c\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u3002 2\u3001java\u4e2d\u5b9e\u73b0r-tree \u4e3a\u4e86\u7406\u89e3r-tree\u7684\u5b9e\u73b0\uff0c\u6211\u4eec\u4ee5java\u4e3a\u4f8b\uff1a \u6982\u8ff0\uff1a \u8282\u70b9\u6709\u4e24\u79cd\u7c7b\u578b\uff1a\u53f6\u5b50\u8282\u70b9\uff08\u5b58\u50a8mbr\u548c\u6570\u636e\uff09\u548c\u975e\u53f6\u5b50\u8282\u70b9\uff08\u5b58\u50a8\u5b50\u8282\u70b9\u548cmbr\uff09\u3002 mbr\u5b58\u50a8\u4e00\u4e2a\u6570\u636e\u70b9\u7684\u8fb9\u754c\u77e9\u5f62\u3002 \u63d2\u5165\uff1a\u5728\u8282\u70b9\u6ee1\u65f6\u5206\u88c2\u8282\u70b9\u3002 \u5220\u9664\uff1a\u53ef\u80fd\u5bfc\u81f4\u8282\u70b9\u5408\u5e76\u3002 \u67e5\u8be2\uff1a\u67e5\u627e\u4e0e\u7ed9\u5b9a\u641c\u7d22mbr\u76f8\u4ea4\u7684\u6240\u6709\u6570\u636e\u70b9\u3002 \u4ee3\u7801\u793a\u4f8b\uff1a \/\/ MBR\u7c7b \/\/ MBR\u5b58\u50a8\u6570\u636e\u70b9\u7684\u8fb9\u754c\u77e9\u5f62 class MBR { double[] min; double[] max; } \/\/ RTreeEntry\u7c7b \/\/ RTreeEntry\u5305\u542bMBR\u548c\u6570\u636e class RTreeEntry { MBR mbr; Object data; } \/\/ RTreeNode\u7c7b \/\/ RTreeNode\u8868\u793a\u6811\u4e2d\u7684\u4e00\u4e2a\u8282\u70b9 class RTreeNode { int count; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-27958","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=27958"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/27958\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=27958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=27958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=27958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}