How to draw line between specific points?

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I have two matrices
A = [1000 1000;...
1003 2640;...
2323 2638;...
2661 1096;...
1000 1000;...
1003 2640];
B = [1003 2640;...
2323 2638;...
2661 1096;...
1000 1000;...
2323 2638;...
2661 1096];
I want to plot lines between points mentioned in A and B. I am plotting it by
data = [A, B];
hold on
for i=1:6
plot(data(i, 1:2), data(i, 3:4));
end
Lines are not connected in the figure which is attached herewith.
Please help.

Accepted Answer

Bjorn Gustavsson
Bjorn Gustavsson on 15 May 2019
For the first time around your loop you plot:
plot(data(1, 1:2), data(1, 3:4)); % i.e.
plot(A(1,:),B(1,:))
that corresponds to using [1000 1000] from A as X-coordinates, and [1003 2640] as Y-coordinates of your line.
I don't think that's what you want. Have a think about what lines you want to plot (manually, perhaps for only 2-3 rows
of A and B) and how you need to loop over the rows to achieve that. Homework hint: you are allowed to use nested loops.
HTH

More Answers (2)

Sayyed Ahmad
Sayyed Ahmad on 15 May 2019
I hope the following codes are what you want:
clear all
close all
clc
A = [ 1000 1000; 1003 2640; 2323 2638; 2661 1096; 1000 1000; 1003 2640]
B= [ 1003 2640; 2323 2638; 2661 1096; 1000 1000; 2323 2638; 2661 1096]
x=zeros(size(A,1)*2,1)
ref=find(mod(1:size(x,1),2))
x(ref)=A(1:size(A,1),1)
x(ref+1)=B(1:size(A,1),1)
y(ref)=B(1:size(A,1),2)
y(ref)=A(1:size(A,1),2)
y(ref+1)=B(1:size(A,1),2)
plot(x,y)

KSSV
KSSV on 15 May 2019
data = [A ; B] ;
plot(data(:,1),data(:,2))

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