Name points on a plot based on their order

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Lama Hamadeh
Lama Hamadeh am 28 Nov. 2022
Kommentiert: Lama Hamadeh am 29 Nov. 2022
Hi,
I have the follwoing points:
%define points
ri = [0.3 0.1 ;
0.7 0.1 ;
0.5 0.3 ;
0.1 0.3 ;
0.1 0.7 ;
0.3 0.5 ;
0.5 0.7 ;
0.3 0.9 ;
0.7 0.9 ;
0.9 0.3 ;
0.9 0.7 ;
0.7 0.5];
%visualise points
plot(ri(:,1),ri(:,2),'rx','LineWidth', 1,'MarkerSize', 12)
xlabel('$r_x$','interpreter','latex')
ylabel('$r_y$','interpreter','latex')
xlim([0 1])
ylim([0 1])
set(gca,'TickLabelInterpreter','latex','FontSize',11)
axis square
grid on
The result of the previous plotting will be as shown on the left. However, I would like to add the number of the point right next to it on the plot based on its order in the vector, as shown on the right.
Any help would be appreciated.

Akzeptierte Antwort

Jonas
Jonas am 28 Nov. 2022
Bearbeitet: Jonas am 28 Nov. 2022
you could add the line
text(ri(:,1),ri(:,2)+0.05,cellstr(num2str((1:size(ri,1))')))
or
text(ri(:,1),ri(:,2)+0.05,strsplit(num2str(1:size(ri,1))))
  2 Kommentare
Jonas
Jonas am 29 Nov. 2022
for visual information ;-)
%define points
ri = [0.3 0.1 ;
0.7 0.1 ;
0.5 0.3 ;
0.1 0.3 ;
0.1 0.7 ;
0.3 0.5 ;
0.5 0.7 ;
0.3 0.9 ;
0.7 0.9 ;
0.9 0.3 ;
0.9 0.7 ;
0.7 0.5];
%visualise points
plot(ri(:,1),ri(:,2),'rx','LineWidth', 1,'MarkerSize', 12)
xlabel('$r_x$','interpreter','latex')
ylabel('$r_y$','interpreter','latex')
xlim([0 1])
ylim([0 1])
set(gca,'TickLabelInterpreter','latex','FontSize',11)
axis square
grid on
text(ri(:,1),ri(:,2)+0.05,strsplit(num2str(1:size(ri,1))))
Lama Hamadeh
Lama Hamadeh am 29 Nov. 2022
Thanks!

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