truncated cone plot
显示 更早的评论
Hi everybody, I'm just trying to plot and save a 3D matrix of points that describes a truncated cone. I've realized it with a set of concentric circles (or, better to say, one-period-spirals) reducing the external size from floor to floor. May i ask you if you know how to realize a truncated cone (just the surface) with only one spiral growing from the base to the top? Thanks for your time
采纳的回答
the cyclist
2012-5-22
It is not perfectly clear to me what you want, but here is a parameterization that sounds close to what I think you mean:
t = 30:0.1:100;
az = 0.1;
z = az*t;
r0 = 10000;
ar = -1;
r = r0 + r0*t;
at = 0.05;
theta = at*t;
x = r .* cos(t);
y = r .* sin(t);
figure
plot3(x,y,z,'.-')
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
