{"id":55111,"date":"2017-10-17T06:21:38","date_gmt":"2017-10-17T06:21:38","guid":{"rendered":"\/forum\/forums\/reply\/55111\/"},"modified":"2017-10-17T06:21:38","modified_gmt":"2017-10-17T06:21:38","slug":"55111","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/55111\/","title":{"rendered":"Reply To: Find the coordinates of the center of a face"},"content":{"rendered":"<p><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">The coordinates of center of a face can be obtained by using the F<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">CENTROID macro. The following udf is an example of accessing the coordinates of the face center using DEFINE<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">ON<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">DEMAND. Note: When define on demand is executed, the coordinates and the ID of the face center are printed in the Fluent console. #include &#8220;udf.h&#8221; DEFINE<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">ON<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">DEMAND(on<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">demand) { Domain *d = Get<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">Domain(1); int ID = 2; Thread *t =Lookup<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">Thread(d, ID); face<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">t f; real x[ND<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">ND],x1,y1,z1; begin<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">f<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">loop(f,t) { F<\/span><em style=\"box-sizing: border-box; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">CENTROID(x,f,t); x1 = x [0]; y1 = x [1]; z1 = x [2]; Message(&#8220;face : %d,%f,%f,%f,%dn&#8221;,f,x1,y1,z1,ID); } end<\/em><span style=\"font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 15px;\">f_loop(f,t) }<\/span><\/p>\n","protected":false},"template":"","class_list":["post-55111","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"The coordinates of center of a face can be obtained by using the FCENTROID macro. The following udf is an example of accessing the coordinates of the face center using DEFINEONDEMAND. Note: When define on demand is executed, the coordinates and the ID of the face center are printed in the Fluent console. #include &quot;udf.h&quot;\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/55111\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Find the coordinates of the center of a face | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"The coordinates of center of a face can be obtained by using the FCENTROID macro. The following udf is an example of accessing the coordinates of the face center using DEFINEONDEMAND. Note: When define on demand is executed, the coordinates and the ID of the face center are printed in the Fluent console. #include &quot;udf.h&quot;\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/55111\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2017-10-17T06:21:38+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2017-10-17T06:21:38+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Find the coordinates of the center of a face | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"The coordinates of center of a face can be obtained by using the FCENTROID macro. The following udf is an example of accessing the coordinates of the face center using DEFINEONDEMAND. 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