Make Animation in matlab and save animation in matlab

Question

Ivan Dwi Putra 2020-6-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/556432-make-animation-in-matlab-and-save-animation-in-matlab

评论： Ivan Dwi Putra 2020-7-1

This is my code represent the my model

function dx = trainfinalmodel(t,x)
%Parameter Massa
m1 = 8095; % massa train set 1 dalam kg
m2 = 8500; % massa train set 2 dalam kg
g  = 10;
%Parameter Gaya
f1 = 205.10^3; % dalam N
f2 = 302.10^3; % dalam N
c_0_1 = 0.01176;
c_1_1 = 0.00077616;
c_2_1 = 4.48 ;
c_0_2 = 0.01176 ;
c_1_2 = 0.00077616;
c_2_2 = 4.48;
v_0 = 300;
hstar = 120;
a_1   = -1./m1.*(c_1_1 + 2.*c_2_1.*v_0);  
a_2   = -1./m2.*(c_1_2 + 2.*c_2_2.*v_0); 
a_1_head = 1-(a_1.*hstar);
a_2_head = 1-(a_2.*hstar);
b = 1;
p_1 = -1./m1.*(c_0_1 - c_2_1.*(v_0).^2);
p_2 = -1./m2.*(c_0_2 - c_2_2.*(v_0).^2);
x = [x(1);x(2);x(3);x(4)];
A = [0  a_1_head      0        0;
     0     0          0        0;
     0 (a_2_head - 1) 0 a_2_head;
     0      0         0        0
     ];
 
B = [-b.*hstar         0;
      b                0;
      0        -b.*hstar;
     -b                b
     ];
 
U_t = [f1; f2;];
 
W = [((a_1 - 1).*v_0) - (p_1.*hstar);
     0;
     ((a_2 - 1).*v_0) - (p_2.*hstar);
     ((a_1 - 1).*v_0) - (p_1.*hstar);
     ];
 
dx = (A*x) + (B*U_t) + W;
end

This is the code for ode45

clear all, close all
tspan = [0:1:1000];
x0 = [0; 0; 100; 0];
figure(1)
[t,x] = ode45(@trainfinalmodel,tspan,x0);
plot(t,x)
legend('x1','x2','x3','x4')
title('Non Linear Model')
xlabel('Waktu(s)')
ylabel('Jarak(m)')
figure(2)
subplot(2,1,1);
hax1 = plot(t,x(:,1),t,x(:,3))
title('Posisi Rangkaian Kereta')
xlabel('Waktu(s)')
ylabel('Jarak(m)')
legend('x_1','x_3')
subplot(2,1,2);
hax2 = plot(t,x(:,2),t,x(:,4))
title('Kecepatan Rangkaian Kereta')
xlabel('Waktu(s)')
ylabel('Kecepatan(m/s)')
legend('x_2','x_4')

and this is the code for animation

a = 1:1000;
b = x(:,1);
c = x(:,3);
%%
p3 = figure(3);
for i = 1:length(a)
    plot(b(1:i),'-r*');
    hold on;
    plot(c(1:i),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_1','x_3')
    fra = getframe(p3);
    plot_i{i} = frame2im(fra);
    [A{i},map{i}] = rgb2ind(plot_i{i},256);
end
%%
for i = 1:length(a)
    imwrite(A{i},map{i},'check_gif.gif','gif','WriteMode','append',...
        'DelayTime',2);
end
%%
d = 1:1000;
e = x(:,2);
f = x(:,4);
%%
p4 = figure(4);
for j = 1:length(d)
    plot(e(1:j),'-r*');
    hold on;
    plot(f(1:j),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_2','x_4')
    fra = getframe(p4);
    plot_j{j} = frame2im(fra);
    [B{j},map{j}] = rgb2ind(plot_j{j},256);
end
%%
for j = 1:length(d)
    imwrite(B{j},map{j},'check_gif1.gif','gif','WriteMode','append',...
        'DelayTime',2);
end

from my animation code only figure(3) is run, figure(4) doesn't run, so I have 3 question

How i run animation in figure(3) and figure(4) at the same time?
How i save the animation?
How i open the animation only without run the code, only in video?

1 个评论
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darova 2020-6-29

see this link: gif animation

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Answer 1

Ivan Dwi Putra 2020-6-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/556432-make-animation-in-matlab-and-save-animation-in-matlab#answer_458797

在 MATLAB Online 中打开

I already did that with this

fra = getframe(p3);
    plot_i{i} = frame2im(fra);
    [A{i},map{i}] = rgb2ind(plot_i{i},256);
    

based on your link but the problem, where i can find my file? and I have managed to do one chart but i need two graph run at the same time, in my code and my understanding it only figure(3) is run but figure (4) cannot Help me please. Thank you

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Ivan Dwi Putra 2020-6-30

在 MATLAB Online 中打开

I use subplot

a = 1:1000;
b = x(:,1);
c = x(:,3);
%%
p3 = figure(3);

This is subplot

subplot(2,1,1)
for i = 1:length(a)
    plot(b(1:i),'-r*');
    hold on;
    plot(c(1:i),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_1','x_3')
    fra = getframe(p3);
    plot_i{i} = frame2im(fra);
    [A{i},map{i}] = rgb2ind(plot_i{i},256);
end
%%
for i = 1:length(a)
    imwrite(A{i},map{i},'check_gif.gif','gif','WriteMode','append',...
        'DelayTime',2);
end
%%
d = 1:1000;
e = x(:,2);
f = x(:,4);
%%

and this is subplot

subplot(2,1,2)
for j = 1:length(d)
    plot(e(1:j),'-r*');
    hold on;
    plot(f(1:j),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_2','x_4')
    fra = getframe(p4);
    plot_j{j} = frame2im(fra);
    [B{j},map{j}] = rgb2ind(plot_j{j},256);
end
%%
for j = 1:length(d)
    imwrite(B{j},map{j},'check_gif1.gif','gif','WriteMode','append',...
        'DelayTime',2);
end

But still can not all animation appear

still only x(:,1) and x(:,3) appear

Ivan Dwi Putra 2020-7-1

在 MATLAB Online 中打开

I have learned form your code, Is it like this?

a = 1:1000;
b = x(:,1);
c = x(:,3);
%%
p3 = figure(3);
for i = 1:length(a)
    subplot(2,1,1)
    plot(b(1:i),'-r*');
    hold on;
    plot(c(1:i),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_1','x_3')
    fra = getframe(p3);
    plot_i{i} = frame2im(fra);
    [A{i},map{i}] = rgb2ind(plot_i{i},256);
end
%%
for i = 1:length(a)
    imwrite(A{i},map{i},'check_gif.gif','gif','WriteMode','append',...
        'DelayTime',2);
end
d = 1:1000;
e = x(:,2);
f = x(:,4);
for j = 1:length(d)
    subplot(2,1,2)
    plot(e(1:j),'-r*');
    hold on;
    plot(f(1:j),'-b*');
    title('Posisi Rangkaian Kereta')
    xlim([1 1000])
   
    xlabel('Waktu(s)')
    ylabel('Jarak(m)')
    legend('x_2','x_4')
    fra = getframe(p3);
    plot_j{j} = frame2im(fra);
    [B{j},map{j}] = rgb2ind(plot_j{j},256);
end
%%
for j = 1:length(d)
    imwrite(B{j},map{j},'check_gif1.gif','gif','WriteMode','append',...
        'DelayTime',2);
end

still only x(:,1) and x(:,3) is appear. Help me please

Ivan Dwi Putra 2020-7-1

if it can't be a subplot, then x(:,2), x(:,4) in figure 4 also doesn't matter

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Make Animation in matlab and save animation in matlab

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Make Animation in matlab and save animation in matlab

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