Name points on a plot based on their order
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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.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1211238/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1211243/image.jpeg)
Any help would be appreciated.
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Jonas
2022년 11월 28일
편집: Jonas
2022년 11월 28일
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))))
댓글 수: 2
Jonas
2022년 11월 29일
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))))
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