How can i rotate a 2d line graph to 3d graph?

Hello friends, i have a line plot (x-axis and y-axis), i want to rotate it 360 degree about the origin and create it like 3D graph. Kindly help me.

[madhan ravi]

Code?

[Adam Danz]

Wouldn't a 360 deg rotation about one axis result in the same orientation as prior to rotation?

[Jorge Canales Verdial]

Yes it would

[Walter Roberson]

I think people are missing the point.

The point is to form a "solid of revolution"

https://www.mathworks.com/matlabcentral/fileexchange/15559-solids-of-revolution

Answer 1

[Jacob Mathew]

Hi Aravindan,

I assume you want to show the plot in 3 dimension. You can use the plot3 method to plot the points in 3 dimensional space. You can then change the perspective by manually clicking and dragging on the graph. Or you can use the view method within a for loop to have an animated view from a 360 degree perspective. Here is an example code:

% Vertical parabola in 3D space
x = linspace(-5, 5, 100);
y = zeros(size(x));  
z = x.^2;  

% Create the 3D plot
figure;
h = plot3(x, y, z, 'LineWidth', 2);
axis equal;
grid on;
xlabel('X-axis');
ylabel('Y-axis');
zlabel('Z-axis');
title('3D Parabola Animation');

% Animation loop
% NOTE: The animation does not render if you run here
for angle = 1:360
    % Rotate the plot around the axis passing through the parabola's minimum
    % Here, the axis is the y-axis, so we rotate around it
    view([angle, 30]);
    drawnow;
    pause(0.05); % Adjust the pause for speed of rotation
end

You can refer to the documentation for plot3 and view functions in the links below:

https://www.mathworks.com/help/releases/R2024a/matlab/ref/plot3.html

https://www.mathworks.com/help/releases/R2024a/matlab/ref/view.html