How to draw a radar search volume in 3D?
조회 수: 4 (최근 30일)
이전 댓글 표시
Hello,
I am a newbie trying to draw a 120-degree radar search volume in 3D without using syms. Any idea how?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1608741/image.png)
https://kr.mathworks.com/help/symbolic/transform-spherical-coordinates-and-plot.html
syms phi theta
r = 4;
x = r*sin(phi)*cos(theta);
y = r*sin(phi)*sin(theta);
z = r*cos(phi);
fsurf(x,y,z,[0 pi/2 0 2*pi])
axis equal
댓글 수: 0
채택된 답변
Benjamin Kraus
2024년 2월 6일
편집: Benjamin Kraus
2024년 2월 6일
You are on the right track.
To start with, you can use fsurf without needing to use symbolic expressions, you just need to switch to using either anonymous functions or function handles.
r = 4;
x = @(phi, theta) r.*sin(phi).*cos(theta);
y = @(phi, theta) r.*sin(phi).*sin(theta);
z = @(phi, theta) r.*cos(phi);
fsurf(x,y,z,[0 pi/2 0 2*pi])
However, I don't think those are the right equations for what you want to draw.
I believe you want to fix phi and vary both r and theta. I believe this may be closer to what you are looking for.
Note that I switched x and z so that the cone was on it's side.
figure
phi = deg2rad(60);
x = @(r, theta) r.*cos(phi);
y = @(r, theta) r.*sin(phi).*sin(theta);
z = @(r, theta) r.*sin(phi).*cos(theta);
fsurf(x,y,z,[0 4 0 2*pi])
댓글 수: 3
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Pulsed Waveforms에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!