DDDA

DDDA

X_o = input('X_o: '); % Initial Point on X-coordinate

Y_o = input('Y_o: '); % Initial Point on Y-coordinate

X_1 = input('X_1: '); % Final Point on X-coordinate

Y_1 = input('Y_1: '); % Final Point on Y-coordinate

dx = abs(X_1-X_o); % Difference between points in X-axis

dy = abs(Y_1-Y_o); % Difference between points in Y-axis

n = max(dx,dy); % To select the steps

X(1)=X_o; Y(1)=Y_o; j=1;

for i = 0:1:n

if (X_1 == X)&(Y_1 == Y)

break

end

j =j+1;

X(j)= X(j-1) + (dx/n);

Y(j)= Y(j-1) + (dy/n);

end

plot(round(X),round(Y));

legend('DDA Line');

title('DDA Algorithm')

xlabel('X Axis'); %labeling the X axis

ylabel('Y Axis'); %labeling the Y axis