# 3D Plot of 2D sim

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Jamie Al on 3 Feb 2021
Edited: Jamie Al on 19 Jan 2022
I have the following code. The code works for me now and it provides a 2D plot, however I am trying to plot a 3D plot. So an example would be like this:
Do you have sugesstions to do this in MATLAB? Thanks
Code:
%Start setting up constants
omega = (charge .*B(3)) ./mass;
rL = v(2) ./omega; % try v(2) as well since initial v is the perp velocity to B
X = zeros(n,3); % initialize an array of zeros with size nx3 for positions
for time = 1:1:n
%compute the t vector
%compute the s vector
% start the Boris algorithm:
% First half E acceleration: generally for E =/0 ande B =/0
% First half B rotation
% Second hald B rotation
% Second half E acceleration
% Finally update position
end
% plotting
figure;
plot(X(:,1),X(:,2),'k','Linewidth',2); hold on;
set(gca,'TickLabelInterpreter','Latex','Fontsize',14)
ylabel('$y / d_{\rm p}$','Interpreter','Latex','Fontsize',14);
xlabel('$x / d_{\rm p}$','Interpreter','Latex','Fontsize',14);

David Goodmanson on 3 Feb 2021
Edited: David Goodmanson on 3 Feb 2021
Hi Lujain,
After setting v = [0 1 1] to provide some initial z velocity,
figure(2)
plot3(X(:,1),X(:,2),X(:,3))
grid on
and note that if you put the mouse cursor inside the window and click on the symbol with the circle enclosing the cube, you can rotate the plot with a click-hold mouse.
Jamie Al on 3 Feb 2021
Hello David!
Thanks a lot, this does work!