Week 3.2 - 2R Robotic Arm Challenge

%Everything done properly but i didnt get the result, I dont know why

% Define the arm length
L1 = 1; % Length of first link
L2 = 0.75; % Length of second link

% Define the joint angles
theta1 = linspace(0,pi/2,50); % Joint angle 1 in degrees
theta2 = linspace(0,pi/2,50); % Joint angle 2 in degrees

% Initialize the figure
fig = figure;
set(gcf,'Position',[0 0 800 600])
set(gca,'nextplot','replacechildren');
v = VideoWriter('2R_robotic_arm.avi');
v.Quality = 100;
v.FrameRate = 10;
open(v)

% Loop through each set of joint angles and calculate the position of the end effector
for i = 1:length(theta1)
    % Convert angles to radians
    t1 = theta1(i);
    t2 = theta2(i);
    
    % Calculate the position of the end effector
    x = L1*cos(t1) + L2*cos(t1+t2);
    y = L1*sin(t1) + L2*sin(t1+t2);
    
    % Plot the arm
    plot([0 L1*cos(t1)],[0 L1*sin(t1)],'LineWidth',2,'Color','b')
    plot([L1*cos(t1) x],[L1*sin(t1) y],'LineWidth',2,'Color','r')
    plot(x,y,'.','MarkerSize',20,'Color','k')
    axis equal
    
    % Capture the frame and add it to the video file
    frame = getframe(fig);
    writeVideo(v,frame);
    
    % Clear the plot
    clf
end

% Close the video file
close(v)

video_title = "2R Robotic Arm Simulation";
video_description = "This video shows a simulation of a 2R robotic arm using forward kinematics in Matlab.";
video_tags = "2R robotic arm, forward kinematics, simulation, Matlab";
video_file_name = "2R_robotic_arm.avi";