MATLAB Answers

# connected first and last points

45 views (last 30 days)
Adam on 6 Feb 2012
Hi I have a problem with the connected point. Use the mouse will add points to the picture and I link will successively, but the first and last point discontinuity will help someone? Thanks a lot in advance.
function [xs, ys, n, t] = bod
but = 1;
hold on
x = [ ];
y = [ ];%seznam vybranych bodu
n = 0;
% zobrazeni navodu pro vyber bodu
disp('Levym tlacitkem misi vkladate bod.')
disp('Pravym tlacitkem misi vložite posledni bod.')
but = 1;
while but == 1
[xi,yi,but] = ginput(1); %vlozi novy bod
plot(xi,yi,'r.');
n = n+1;
x(:,n) = xi;
y(:,n) = yi;
end
%inetrpolace podle krivky a jemnejsi radkovani
t = 1:n;
ts = 1:0.1:n;
ys = spline(t,y,ts);
xs = spline(t,x,ts);
% Graf interpolované krivky
plot(xs,ys,'r-');
##### 0 CommentsShowHide -1 older comments

Sign in to comment.

### Accepted Answer

Benjamin Schwabe on 6 Feb 2012
Hello Adam,
I am not entirely sure that I understand your problem. You want to have line between the last and the first point, correct? Then you simply might consider changing the plot command to plot([xs,xs(1)],[ys,ys(1)],'r-');
If you have column vetors, this will not work, but the following code will: plot([xs;xs(1)],[ys;ys(1)],'r-');
I hope this solves your problem.
##### 3 CommentsShowHide 2 older comments
Adam on 8 Feb 2012
Ook sorry wrong question. Once again thank you

Sign in to comment.

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!