make dot and count them
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how to make dots (points) in an axes and count them.. may I use "ginput".. how i can make it..?? thank you.. ^^
4 commentaires
Jan
le 12 Avr 2012
How do you "make some dots in an axes"? Isn't it possible to count the dots during creation already?
Réponse acceptée
Thomas
le 12 Avr 2012
Is this what you want
E.G.
close all
clear variables %changed from clear all on Jan's suggestion
disp('Hit return (enter) to stop entering points');
[x,y]=ginput; % hit return(enter) to stop entering points
plot(x,y,'MarkerFaceColor',[0 0 0],'MarkerEdgeColor',[0 0 0],'Marker','o','LineStyle','none');
num_points=(length(x))
6 commentaires
Jan
le 12 Avr 2012
@Thomas, I would not have mentioned the problems of "clear all", if this appears less frequently in this forum. It does not cause any problems in your example. But I see it in so many examples, even as first line inside functions -where it is even weird-, that I suggest repeatedly to avoid it. A lot of FEX submissions contain "clear all, close all" and testing them can destroy my current work.
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