{"id":483,"date":"2011-05-12T14:47:28","date_gmt":"2011-05-12T06:47:28","guid":{"rendered":"http:\/\/nick.workao.org\/?p=483"},"modified":"2011-07-18T13:14:04","modified_gmt":"2011-07-18T05:14:04","slug":"%e9%80%9a%e8%bf%87%e4%b8%a4%e4%b8%aa%e7%82%b9%e7%9a%84%e7%bb%8f%e7%ba%ac%e5%ba%a6%e8%ae%a1%e7%ae%97%e8%b7%9d%e7%a6%bb","status":"publish","type":"post","link":"http:\/\/nick.txtcc.com\/index.php\/win\/483","title":{"rendered":"\u901a\u8fc7\u4e24\u4e2a\u70b9\u7684\u7ecf\u7eac\u5ea6\u8ba1\u7b97\u8ddd\u79bb"},"content":{"rendered":"<p>\u539f\u7406:<\/p>\n<p>\u5730\u7403\u8d64\u9053\u4e0a\u73af\u7ed5\u5730\u7403\u4e00\u5468\u8d70\u4e00\u5708\u517140075.04\u516c\u91cc,\u800c@\u4e00\u5708\u5206\u6210360\u00b0,\u800c\u6bcf1\u00b0(\u5ea6)\u670960,\u6bcf\u4e00\u5ea6\u4e00\u79d2\u5728\u8d64\u9053\u4e0a\u7684\u957f\u5ea6\u8ba1\u7b97\u5982\u4e0b\uff1a<\/p>\n<p>40075.04km\/360\u00b0=111.31955km<\/p>\n<p>111.31955km\/60=1.8553258km=1855.3m<\/p>\n<p>\u800c\u6bcf\u4e00\u5206\u53c8\u670960\u79d2,\u6bcf\u4e00\u79d2\u5c31\u4ee3\u88681855.3m\/60=30.92m<\/p>\n<p>\u4efb\u610f\u4e24\u70b9\u8ddd\u79bb\u8ba1\u7b97\u516c\u5f0f\u4e3a<\/p>\n<p>d\uff1d111.12cos{1\/[sin\u03a6Asin\u03a6B\u5341cos\u03a6Acos\u03a6Bcos(\u03bbB\u2014\u03bbA)]}<\/p>\n<p>\u5176\u4e2dA\u70b9\u7ecf\u5ea6\uff0c\u7eac\u5ea6\u5206\u522b\u4e3a\u03bbA\u548c\u03a6A\uff0cB\u70b9\u7684\u7ecf\u5ea6\u3001\u7eac\u5ea6\u5206\u522b\u4e3a\u03bbB\u548c\u03a6B\uff0cd\u4e3a\u8ddd\u79bb\u3002<\/p>\n<pre name=\"code\" class=\"c#\">\nprivate const double EARTH_RADIUS = 6378.137;\nprivate static double rad(double d)\n{\nreturn d * Math.PI \/ 180.0;\n}\n\npublic static double GetDistance(double lat1, double lng1, double lat2, double lng2)\n{\ndouble radLat1 = rad(lat1);\ndouble radLat2 = rad(lat2);\ndouble a = radLat1 - radLat2;\ndouble b = rad(lng1) - rad(lng2);\ndouble s = 2 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin(a\/2),2) +\nMath.Cos(radLat1)*Math.Cos(radLat2)*Math.Pow(Math.Sin(b\/2),2)));\ns = s * EARTH_RADIUS;\ns = Math.Round(s * 10000) \/ 10000;\nreturn s;\n}\n\n\u00a0\nc#\u4ee3\u7801\nprivate const double EARTH_RADIUS = 6378.137; \/\/\u5730\u7403\u534a\u5f84\nprivate static double rad(double d)\n{\nreturn d * Math.PI \/ 180.0;\n}\n\npublic static double GetDistance(double lat1, double lng1, double lat2, double lng2)\n{\ndouble radLat1 = rad(lat1);\ndouble radLat2 = rad(lat2);\ndouble a = radLat1 - radLat2;\ndouble b = rad(lng1) - rad(lng2);\ndouble s = 2 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin(a\/2),2) +\nMath.Cos(radLat1)*Math.Cos(radLat2)*Math.Pow(Math.Sin(b\/2),2)));\ns = s * EARTH_RADIUS;\ns = Math.Round(s * 10000) \/ 10000;\nreturn s;\n}\n\n\/\/.Split(new string[] { \"@@\" }, StringSplitOptions.RemoveEmptyEntries)\n\n<\/pre>","protected":false},"excerpt":{"rendered":"<p>\u539f\u7406: \u5730\u7403\u8d64\u9053\u4e0a\u73af\u7ed5\u5730\u7403\u4e00\u5468\u8d70\u4e00\u5708\u517140075.04\u516c\u91cc,\u800c@\u4e00\u5708\u5206\u6210360\u00b0,\u800c\u6bcf1\u00b0(\u5ea6)\u670960,\u6bcf\u4e00\u5ea6\u4e00\u79d2\u5728\u8d64\u9053\u4e0a\u7684\u957f\u5ea6\u8ba1\u7b97\u5982\u4e0b\uff1a 40075.04km\/360\u00b0=111.31955km 11&#46;&#46;&#46;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[285,286],"class_list":["post-483","post","type-post","status-publish","format-standard","hentry","category-win","tag-285","tag-286"],"_links":{"self":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/comments?post=483"}],"version-history":[{"count":5,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/483\/revisions"}],"predecessor-version":[{"id":550,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/posts\/483\/revisions\/550"}],"wp:attachment":[{"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/media?parent=483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/categories?post=483"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/nick.txtcc.com\/index.php\/wp-json\/wp\/v2\/tags?post=483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}