How can I add arrows to each integrin particle in my plot that is moving.

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BAILEY MCMASTER am 2 Mai 2023
Beantwortet: LeoAiE am 2 Mai 2023
N=10; % number of integrins
L=100; % size of the domain 100nm
D=.01; % diffusion coefficient
dt=1; % time step
F=randi([1, 10],1); % force on the bond with a random number of 1 to 10
P_a=randi([0,1],1); % binding rate of a random number from 0 to 1
P_ub=1/(1.5*F); % unbinding rate based upon our previous values
Tmax=500; % max time
% Intialize our integrins
x=randi([0,360],N,1); % x-coordinates generated randomily for each integrin
y=randi([0,50],N,1); % y-coordinates generated for each
state=ones(N,1); % Each integrin is set to an inactive state at 0
% our figure
figure;
axis([0 L 0 L]);
set(gca,'nextplot','replacechildren');
% position update
for t = 0:dt:Tmax
% colors for our integrin states
colors = repmat([1 0 0], N,1); % red for inactive state
colors(state == 2,:,:) = repmat([0 1 0],sum(state == 2),1);
% plotting our integrins
scatter(x,y,50,colors,'filled');
title(sprintf('Time=%.2f',t));
drawnow;
for i=1:N
w=randi([0,1],1);
if state(i)==1
dx=randi([-360,360],1);
dy=randi([-50,50],1);
x(i)=x(i)+dx;
y(i)=y(i)+dy;
end
end
x=mod(x,L);
y=mod(y,L);
for i=1:N
w_1=randi([0,1],1);
if w_1 < P_a && state(i)==1
state(i)=2;
end
end
for i=1:N
w1=randi([0,1],1);
if state(i)==2 && w1<P_ub
state(i)=1;
end
end
Displacement=sqrt((mean(x.^2))/N)
end
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Walter Roberson am 2 Mai 2023
BAILEY MCMASTER am 2 Mai 2023
I renamed it, because one issues was solved, I'm trying to use the quiver function but its not working atm.

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LeoAiE am 2 Mai 2023
Here is my shot at this!
N=10; % number of integrins
L=100; % size of the domain 100nm
D=.01; % diffusion coefficient
dt=1; % time step
F=randi([1, 10],1); % force on the bond with a random number of 1 to 10
P_a=randi([0,1],1); % binding rate of a random number from 0 to 1
P_ub=1/(1.5*F); % unbinding rate based upon our previous values
Tmax=500; % max time
% Intialize our integrins
x=randi([0,360],N,1); % x-coordinates generated randomly for each integrin
y=randi([0,50],N,1); % y-coordinates generated for each
state=ones(N,1); % Each integrin is set to an inactive state at 0
% our figure
figure;
axis([0 L 0 L]);
set(gca,'nextplot','replacechildren');
% Initialize the previous positions
x_prev = x;
y_prev = y;
% position update
for t = 0:dt:Tmax
% colors for our integrin states
colors = repmat([1 0 0], N,1); % red for inactive state
colors(state == 2,:,:) = repmat([0 1 0],sum(state == 2),1);
% plotting our integrins
scatter(x,y,50,colors,'filled');
% Add arrows to each integrin particle
hold on;
quiver(x_prev, y_prev, x - x_prev, y - y_prev, 'k', 'AutoScale', 'off');
hold off;
title(sprintf('Time=%.2f',t));
drawnow;
for i=1:N
w=randi([0,1],1);
if state(i)==1
dx=randi([-360,360],1);
dy=randi([-50,50],1);
x(i)=x(i)+dx;
y(i)=y(i)+dy;
end
end
% Update the previous positions and calculate the displacement vectors
x_prev = x;
y_prev = y;
x=mod(x,L);
y=mod(y,L);
for i=1:N
w_1=randi([0,1],1);
if w_1 < P_a && state(i)==1
state(i)=2;
end
end
for i=1:N
w1=randi([0,1],1);
if state(i)==2 && w1<P_ub
state(i)=1;
end
end
Displacement=sqrt((mean(x.^2))/N);
end
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