Add 2d plots along a 3d helix

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Vivi 2020-2-13

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https://ww2.mathworks.cn/matlabcentral/answers/505359-add-2d-plots-along-a-3d-helix

评论： Subhadeep Koley 2020-9-14

采纳的回答： Subhadeep Koley

Hello.

I have a simple helix that I've plotted by using the following code:

r=93.36;
theta=0:pi/50:10*pi;
%Trajectory in x-direction
x=-r.*cos(theta);
%Trajectory in y-direction
y=r.*sin(theta);
%Trajectory in z-direction
z=theta;
figure(1);
plot3(x,y,z);
xlabel('x');
ylabel('y');
zlabel('z');
grid on

My goal now is to also plot on the same graph the x and y components of the helix given from the equations above.

Thank you.

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采纳的回答

Subhadeep Koley 2020-2-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/505359-add-2d-plots-along-a-3d-helix#answer_415457

Use this

close all; clc;
r=93.36;
theta=0:pi/50:10*pi;
%Trajectory in x-direction
x=-r.*cos(theta);
%Trajectory in y-direction
y=r.*sin(theta);
%Trajectory in z-direction
z=theta;
figure(1);
plot3(x,y,z);
xlabel('x');
ylabel('y');
zlabel('z');
grid on
hold on;
plot(x, y, 'r', 'LineWidth', 3);