我想绘制绕Y轴的三维图，Y = 100-X ^ 2，周期在360度。最后变得像一个圆锥体。那可能吗？我有一个数组 X = 1：1：100 ，和一个数组是，尺寸（1 100）。

I would like to plot a 3D graph, y=100-x^2, cycle around the Y axis in 360 degrees. Eventually to become like a cone. Is that possible? I have an array x=1:1:100, and an array y, size(1 100).

我尝试过的ž阵列， Z = 1：1：100 因为这是第3轴的锥的基地。随着plot3我做Y = 100-X ^ 2的一个图。我想有点动画，并有最终锥形，或面锥体。

I tried an Z array, z=1:1:100 as the 3th axis in the base of the cone. With plot3 I done the one graph of y=100-x^2. I would like to kinda animate it and have eventually a cone, or a surface cone.

推荐答案

这是你正在寻找什么？

r = 1:1:100;
y = 100-r.^2;
theta = 0:pi/20:2*pi;
xx = bsxfun(@times,r',cos(theta));
zz = bsxfun(@times,r',sin(theta));
yy = repmat(y',1,length(theta));
surf(xx,yy,zz)

来源：Generating 3D绘图用曲线革命