Plotting more than one graph onto a 3d plot

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matlab_day
matlab_day 2021-1-30
评论： Walter Roberson 2021-1-30
Despite having used the hold on function the code below only gives me 1 curve for an ODE I wish to plot with 3 separate initial conditions.
w_initial = [-1; .1; -.1]; %column vector containing initial values
[t, w] = ode45(@thefunc, t_duration, w_initial);
figure
plot3(w(:,1),w(:,2), w(:,3), '.');
grid on;
w_initial = [.4; -1; .2]; %column vector containing initial values
[t, w] = ode45(@thefunc, t_duration, w_initial);
figure
plot3(w(:,1),w(:,2), w(:,3), '.');
hold on;
w_initial = [-.5; 0; 0]; %column vector containing initial values
[t, w] = ode45(@thefunc, t_duration, w_initial);
figure
plot3(w(:,1),w(:,2), w(:,3), '.');
hold off;
grid on;

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回答（1 个）

Walter Roberson
Walter Roberson 2021-1-30
Remove the calls to figure
Move the call to "hold on" to after the first plot3() call
  2 个评论
matlab_day
matlab_day 2021-1-30
编辑：matlab_day 2021-1-30
With the following code I still see only 1 curve as shown in the attached image.
w_initial = [-1; .1; -.1]; %column vector containing initial values
[t, w] = ode45(@thefunc, t_duration, w_initial);
figure
plot3(w(:,1),w(:,2), w(:,3), '.');
hold on;
w_initial = [-.5; 0; 0]; %column vector containing initial values
[t, w] = ode45(@thefunc, t_duration, w_initial);
figure
plot3(w(:,1),w(:,2), w(:,3), '.');
hold off;

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