Making moving obstacles in an matlab

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passioncoding 2019-1-2

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/437929-making-moving-obstacles-in-an-matlab

编辑： Pravija Raj 2019-9-19

I have created random obstacles in MATLAB, (they are user acquired) now I am trying to make some obstacles randomly moving.

I Know that, in every iteration value of some obstacle be updated by adding some threshold valueto it.

But I am getting how to write up in code.

Kindly help me

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passioncoding 2019-1-3

编辑：Geoff Hayes 2019-1-4

在 MATLAB Online 中打开

 a = [41.50,   -70.95];
 b = [ 41.80 , -70.50];
 % straight line function from a to b
 func = @(x)a(2) + (a(2)-b(2))/(a(1)-b(1))*(x-a(1));
 % determine the x values
 x = linspace(a(1),b(1),50);
 % determine the y values
 y = func(x);
 % create the figure
 figure;
 % get a handle to a plot graphics object
 hPlot = plot(NaN,NaN,'ro');
 % set the axes limits
 xlim([min(a(1),b(1)) max(a(1),b(1))]);
 ylim([min(a(2),b(2)) max(a(2),b(2))]);
 % iterate through each point on line
 for k=1:length(x)
     % update the plot graphics object with the next position
     set(hPlot,'XData',x(k),'YData',y(k));
     % pause for 0.5 seconds
     pause(0.5);
 end

Geoff Hayes I got this part of code from one of your answers regarding animation between two points. I loved and fully understand this code. Since this code follows the staright line of equation Can you help me in making such animation without following line of equation. Like randomly points should be moving in simulaton.

Pravija Raj 2019-8-19

Hello Faiza,

I am working with a similar situation. Were you able to figure out the code for your scenario. Please kindly share if you have.

I will explain my problem here. I need to simulate an object that randomly moves in a square area in any direction for a duration of time with a random speed. Can any one help me with the code for this.

passioncoding 2019-9-10

I am working on path planning and avoiding obstacle.

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采纳的回答

darova 2019-9-10

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/437929-making-moving-obstacles-in-an-matlab#answer_391268

在 MATLAB Online 中打开

After long 7 month of training and research i reached a success. Here is what i've achieved

clc,clear
px = 5*rand(10,1);         % initial position
py = 5*rand(10,1);
plot(px,py,'.r')
axis([-1 1 -1 1]*20)
hold on
t = 360*rand(size(px));    % initial direction in degree
for i = 1:20               % number of iterations
    dx = 0.5*cosd(t);      % how fast we move
    dy = 0.5*sind(t);
    t = t + 90*(0.5-rand(size(px)));    % change direction (-45:45) degree
    plot([px px+dx]', [py py+dy]')      % plot displacement
    px = px + dx;                       % new position
    py = py + dy;
    h = plot(px,py,'.b');               % plot new position
    pause(0.2)                          % wait
    delete(h)                           % remove new position
                                        % from graph
end
hold off

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darova 2019-9-10

Thank you :)

Pravija Raj 2019-9-19

编辑：Pravija Raj 2019-9-19

Many thanks for your response and really appreciate your work.

Thank you.

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