{"id":377541,"date":"2024-08-07T11:20:54","date_gmt":"2024-08-07T11:20:54","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-converting-uv-coordinates-to-theta-and-phi\/"},"modified":"2024-08-07T11:20:54","modified_gmt":"2024-08-07T11:20:54","slug":"problem-converting-uv-coordinates-to-theta-and-phi","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-converting-uv-coordinates-to-theta-and-phi\/","title":{"rendered":"Problem converting U,V coordinates to Theta and phi"},"content":{"rendered":"

I have farfield calculation that I do and I get the results in sphere like shape and when I take the information out its in U,V coordinates<\/p>\n

when I try to convert it back to theta and phi its come out wrong as can seen in the pictures I will upload.<\/p>\n

the first is the output in sphere shape and then in the theta phi coordinates with the scripts code.<\/p>\n

“<\/p>\n

load(“Name.fsp”);
E2 = farfield3d(“T”,1,2000,2000);
ux = farfieldux(“T”,1,2000,2000);
uy = farfielduy(“T”,1,2000,2000);<\/p>\n

theta = linspace(-90,90,2000);
phi = linspace(0,90,500);
Theta = meshgridx(theta,phi);
Phi = meshgridy(theta,phi);
E2_angle = farfieldspherical(E2,ux,uy,Theta,Phi);
E2_angle = reshape(E2_angle, [length(theta), length(phi)]);
image(theta, phi, E2_angle, “theta”,”phi”,”E2″);<\/p>\n

“<\/p>\n

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