{"id":38211,"date":"2025-05-20T01:04:21","date_gmt":"2025-05-19T17:04:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/38211.html"},"modified":"2025-05-20T01:04:21","modified_gmt":"2025-05-19T17:04:21","slug":"c-%e6%a3%80%e6%9f%a5%e6%9f%90%e4%b8%aa%e7%82%b9%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e4%ba%8e%e5%9c%86%e6%89%87%e5%8c%ba%e5%86%85check-whether-a-point-exists-in-circle-sector-or-not","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/38211.html","title":{"rendered":"C# \u68c0\u67e5\u67d0\u4e2a\u70b9\u662f\u5426\u5b58\u5728\u4e8e\u5706\u6247\u533a\u5185(Check whether a point exists in circle sector or not)"},"content":{"rendered":"<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"280\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250519170419-682b6493d9168.png\" width=\"557\" \/><\/p>\n<\/p>\n<p>\u6211\u4eec\u6709\u4e00\u4e2a\u4ee5\u539f\u70b9 (0, 0) \u4e3a\u4e2d\u5fc3\u7684\u5706\u3002\u4f5c\u4e3a\u8f93\u5165&#xff0c;\u6211\u4eec\u7ed9\u51fa\u4e86\u5706\u6247\u533a\u7684\u8d77\u59cb\u89d2\u5ea6\u548c\u5706\u6247\u533a\u7684\u5927\u5c0f&#xff08;\u4ee5\u767e\u5206\u6bd4\u8868\u793a&#xff09;\u3002\u00a0<\/p>\n<p>\u4f8b\u5b50&#xff1a;\u00a0<\/p>\n<p>\u8f93\u5165&#xff1a;\u534a\u5f84 &#061; 8 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u8d77\u59cb\u89d2 &#061; 0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u767e\u5206\u6bd4 &#061; 12\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0x &#061; 3 y &#061; 4 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\u00a0 \u8f93\u51fa&#xff1a;\u70b9 (3, 4) \u4f4d\u4e8e\u5706 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u6247\u533a\u5185<\/p>\n<p>\u8f93\u5165&#xff1a;\u534a\u5f84 &#061; 12 \u00a0 \u00a0 \u00a0 \u00a0 \u8d77\u59cb\u89d2 &#061; 45 \u00a0 \u00a0 \u00a0 \u00a0 \u767e\u5206\u6bd4 &#061; 25 \u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 x &#061; 3 y &#061; 4 \u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 \u8f93\u51fa&#xff1a;\u70b9 (3, 4) \u4e0d\u4f4d\u4e8e \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u5706\u6247\u533a\u5185<\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"250\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250519170419-682b6493ea86b.png\" width=\"250\" \/><\/p>\n<p>\u5728\u6b64\u56fe\u50cf\u4e2d&#xff0c;\u8d77\u59cb\u89d2\u5ea6\u4e3a 0 \u5ea6&#xff0c;\u534a\u5f84\u4e3a r&#xff0c;\u5047\u8bbe\u5f69\u8272\u533a\u57df\u767e\u5206\u6bd4\u4e3a 12%&#xff0c;\u5219\u6211\u4eec\u8ba1\u7b97\u7ed3\u675f\u89d2\u5ea6\u4e3a360\/\u767e\u5206\u6bd4 &#043; \u8d77\u59cb\u89d2\u5ea6\u3002<\/p>\n<p>\u4e3a\u4e86\u786e\u5b9a\u70b9 (x, y) \u662f\u5426\u5b58\u5728\u4e8e\u5706\u6247\u533a&#xff08;\u4ee5\u539f\u70b9\u4e3a\u4e2d\u5fc3&#xff09;\u5185&#xff0c;\u6211\u4eec\u9700\u8981\u627e\u5230\u8be5\u70b9\u7684\u6781\u5750\u6807&#xff0c;\u7136\u540e\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4&#xff1a;<\/p>\n<p>\u00a0\u00a0 \u00a01\u3001\u4f7f\u7528\u8fd9\u4e2a\u5c06 x, y \u8f6c\u6362\u4e3a\u6781\u5750\u6807\u89d2\u5ea6 &#061; atan(y\/x); \u534a\u5f84 &#061; sqrt(x * x &#043; y * y);<\/p>\n<p>\u00a0\u00a0 \u00a02\u3001\u90a3\u4e48\u89d2\u5ea6\u5fc5\u987b\u4ecb\u4e8e StartingAngle(\u8d77\u59cb\u89d2) \u548c EndingAngle(\u7ec8\u6b62\u89d2) \u4e4b\u95f4&#xff0c;\u5e76\u4e14\u534a\u5f84\u5fc5\u987b\u4ecb\u4e8e 0 \u548c\u60a8\u7684\u534a\u5f84\u4e4b\u95f4\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p>\/\/ C# program to check if a point lies \/\/ inside a circle sector. using System.IO; using System; \u00a0 class GFG { \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 static void checkPoint(int radius, int x, int y, \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float percent, float startAngle) \u00a0 \u00a0 { \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ calculate endAngle \u00a0 \u00a0 \u00a0 \u00a0 float endAngle &#061; 360 \/ percent &#043; startAngle; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ Calculate polar co-ordinates \u00a0 \u00a0 \u00a0 \u00a0 float polarradius &#061;\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (float)Math.Sqrt(x * x &#043; y * y); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 float Angle &#061; (float)Math.Atan(y \/ x); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ Check whether polarradius is less then\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ radius of circle or not and Angle is\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ between startAngle and endAngle or not \u00a0 \u00a0 \u00a0 \u00a0 if (Angle &gt;&#061; startAngle &amp;&amp; Angle &lt;&#061; endAngle \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &amp;&amp; polarradius &lt; radius) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Console.Write(&#034;Point ({0}, {1}) exist in &#034; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0&#043; &#034;the circle sector&#034;, x, y); \u00a0 \u00a0 \u00a0 \u00a0 else \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Console.Write(&#034;Point ({0}, {1}) does not &#034; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &#043; &#034;exist in the circle sector&#034;, x, y); \u00a0 \u00a0 } \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \/\/ Driver code \u00a0 \u00a0 public static void Main() \u00a0 \u00a0 { \u00a0 \u00a0 \u00a0 \u00a0 int radius &#061; 8, x &#061; 3, y &#061; 4; \u00a0 \u00a0 \u00a0 \u00a0 float percent &#061; 12, startAngle &#061; 0; \u00a0 \u00a0 \u00a0 \u00a0 checkPoint(radius, x, y, percent, startAngle); \u00a0 \u00a0 } } \u00a0 \/\/ This code is contributed by Smitha Dinesh Semwal\u00a0<\/p>\n<p>\u8f93\u51fa &#xff1a;\u00a0<\/p>\n<p>\u70b9&#xff08;3&#xff0c;4&#xff09;\u4f4d\u4e8e\u5706\u6247\u533a\u5185<\/p>\n<p>\u65f6\u95f4\u590d\u6742\u5ea6&#xff1a; \u00a0O(1)<\/p>\n<p>\u8f85\u52a9\u7a7a\u95f4&#xff1a; O(1)<\/p>\n<p><span style=\"color:#1c7331\">\u5982\u679c\u60a8\u559c\u6b22\u6b64\u6587\u7ae0&#xff0c;\u8bf7\u6536\u85cf\u3001\u70b9\u8d5e\u3001\u8bc4\u8bba&#xff0c;\u8c22\u8c22&#xff0c;\u795d\u60a8\u5feb\u4e50\u6bcf\u4e00\u5929\u3002<\/span>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb8.2k\u6b21\uff0c\u70b9\u8d5e11\u6b21\uff0c\u6536\u85cf11\u6b21\u30022\u3001\u90a3\u4e48\u89d2\u5ea6\u5fc5\u987b\u4ecb\u4e8e StartingAngle(\u8d77\u59cb\u89d2) \u548c EndingAngle(\u7ec8\u6b62\u89d2) \u4e4b\u95f4\uff0c\u5e76\u4e14\u534a\u5f84\u5fc5\u987b\u4ecb\u4e8e 0 \u548c\u60a8\u7684\u534a\u5f84\u4e4b\u95f4\u30021\u3001\u4f7f\u7528\u8fd9\u4e2a\u5c06 x, y \u8f6c\u6362\u4e3a\u6781\u5750\u6807\u89d2\u5ea6 = atan(y\/x);\u534a\u5f84 = sqrt(x * x + y * y);\u5728\u6b64\u56fe\u50cf\u4e2d\uff0c\u8d77\u59cb\u89d2\u5ea6\u4e3a 0 \u5ea6\uff0c\u534a\u5f84\u4e3a r\uff0c\u5047\u8bbe\u5f69\u8272\u533a\u57df\u767e\u5206\u6bd4\u4e3a 12%\uff0c\u5219\u6211\u4eec\u8ba1\u7b97\u7ed3\u675f\u89d2\u5ea6\u4e3a360\/\u767e\u5206\u6bd4 + \u8d77\u59cb\u89d2\u5ea6\u3002\u6211\u4eec\u6709\u4e00\u4e2a\u4ee5\u539f\u70b9 (0, 0) \u4e3a\u4e2d\u5fc3\u7684\u5706\u3002\u4f5c\u4e3a\u8f93\u5165\uff0c\u6211\u4eec\u7ed9\u51fa\u4e86\u5706\u6247\u533a\u7684\u8d77\u59cb\u89d2\u5ea6\u548c\u5706\u6247\u533a\u7684\u5927\u5c0f\uff08\u4ee5\u767e\u5206\u6bd4\u8868\u793a\uff09\u3002<\/p>\n","protected":false},"author":2,"featured_media":38209,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,427],"topic":[],"class_list":["post-38211","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-427"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C# \u68c0\u67e5\u67d0\u4e2a\u70b9\u662f\u5426\u5b58\u5728\u4e8e\u5706\u6247\u533a\u5185(Check whether a point exists in circle sector or not) - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/38211.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C# \u68c0\u67e5\u67d0\u4e2a\u70b9\u662f\u5426\u5b58\u5728\u4e8e\u5706\u6247\u533a\u5185(Check whether a point exists in circle sector or not) - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb8.2k\u6b21\uff0c\u70b9\u8d5e11\u6b21\uff0c\u6536\u85cf11\u6b21\u30022\u3001\u90a3\u4e48\u89d2\u5ea6\u5fc5\u987b\u4ecb\u4e8e StartingAngle(\u8d77\u59cb\u89d2) \u548c 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