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Hello,

I want to 3D plot a circle looks like the image below. (Sorry for the poor drawing) The figure is a circle of radius 1 in xy surface and the circle should have a sine wave in z-direction. It's exactly same shape with pringles chip.

Michael
on 6 Apr 2021

Try this:

%Position of center of chip in 3D space

x0 = 1;

y0 = 1;

z0 = 1;

r = 1;%Radius of chip

d_theta = 2*pi/60; %Differential Angle

th = 0:d_theta:2*pi; %Angle Vector

height = 0.5; %Height of wave in the chip

% Create the x, y, and z positions

x = x0+r*cos(th);

y = y0+r*sin(th);

z = z0+height*sin(2*th);

plot3(x,y,z)

grid on

axis equal

William
on 6 Apr 2021

How about this:

theta = linspace(0,2*pi,100);

x = sin(theta);

y = cos(theta);

z = sin(2*theta);

figure();

plot3(x,y,z);

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