Rotating coordinate system inside loop

a=4;

b=4;

ab=a*b;

Input=zeros(ab,2);

for ii=1:a

Input((ii-1)*a+1:ii*a,1)=(a-b:-2:-(a+b)+2)'+2*(ii-1);

Input((ii-1)*a+1:ii*a,2)=(-(a+b)+2:2:a-b)'+2*(ii-1);

end

Question: Need to rotate at 45 degree.

Answer 1

[Jan]

a=4;
b=4;
ab=a*b;
Input=zeros(ab,2);  
for ii=1:a
    Input((ii-1)*a+1:ii*a,1)=(a-b:-2:-(a+b)+2)'+2*(ii-1);
    Input((ii-1)*a+1:ii*a,2)=(-(a+b)+2:2:a-b)'+2*(ii-1);        
end
plot(Input(:, 1), Input(:, 2), 'b');
hold on;

Input2 = Input * [cosd(45), -sind(45); sind(45), cosd(45)];
plot(Input2(:, 1), Input2(:, 2), 'r');

[shree Thapa]

Thank you