Loop through array containing coordinates points

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Álvaro Recalde
Álvaro Recalde 2022-2-8
回答： Arif Hoq 2022-2-8
Hi, im trying to loop through an array containing coordinates in order to plot them and automatize this process, I've tried doing the following:
p0 = [1, 1];
p1 = [2, 3];
p2 = [4, 3];
p3 = [3, 1];
cords = [p0, p1, p2, p3];
for index = 1:length(cords)
pX = cords(index) % don't know how to take first value (1) not working
pY = cords(index) % same here
disp(pX)
disp(pY)
plot(pX,pY,.....)
end
I can't get something like this to work, I always end up getting just the first point instead of both of them.
I've also tried setting the points like
p0 = [1 1] %with spaces
But I don't know how to make it work. If you could help me I'd be very grateful, thanks

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采纳的回答

Arif Hoq
Arif Hoq 2022-2-8
Ran in:
Try this...
p0 = [1, 1];
p1 = [2, 3];
p2 = [4, 3];
p3 = [3, 1];
cords = [p0, p1, p2, p3];
N=length(cords);
for i = 1:length(cords)
pX{i} = cords(i); % don't know how to take first value (1) not working
pY{i} = cords(i); % same here
end
pX_value=[pX{:}];
pY_value=[pY{:}];
disp(pX_value)
1 1 2 3 4 3 3 1
disp(pY_value)
1 1 2 3 4 3 3 1
plot(length(pX_value),pX_value,'*')
ylim([0 5])

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