Getting the X and Y coordinates of the points from the figure

Hi all,

I am running a code and at the end, the figure is generating with the points. The detail description and the figure is attached below:

Here, I want to calculate the distace of all the red dots from the green Utopia star. And for that, I want to get the the X and Y coordinates of all the red dots. I am also attaching the code for this figure here:

%Plotting the tradespace and pareto frontier with corresponding architectures
Utopia = UtilityHighRange; % for plotting purposes add Utopia point
plot(archs_cost(1),archs_util(1),'b.','Tag',sprintf('ix %d\n%s',1, join(archs(1,:))) )
   hold on  % moved up from below
   for n = 2:n_arch
       plot(archs_cost(n),archs_util(n),'b.','Tag',sprintf('ix %d\n%s',1, join(archs(n,:))) )
   end

datacursormode on
dcm = datacursormode(gcf);
set(dcm,'UpdateFcn',@myupdatefcn)

xlabel('Cost')
ylabel('Utility')
xlim([CostLowerRange CostHighRange])
ylim([UtilityLowerRange UtilityHighRange])
title('Trade Space Pareto')
hold on

plot(Utopia,'pg','LineWidth',5)
annotation('textarrow',[0.1657 0.1357],[0.8738 0.9238],'String','Utopia')
plot(pareto_frontier(1, 2), pareto_frontier(1, 3), 'rs', 'LineWidth', 3, 'Tag', sprintf('ix %d\n%s', 1, join(pareto_frontier_archs(1, :))))
hold on


for n = 2:frontier_idx
   plot(pareto_frontier(n:frontier_idx, 2), pareto_frontier(n:frontier_idx,3), 'rs', 'LineWidth', 3, 'Tag', sprintf('ix %d\n%s', 1, join(pareto_frontier_archs(n, :))))
end

datacursormode on
dcm = datacursormode(gcf);
set(dcm, 'UpdateFcn', @myupdatefcn)
hold off

In here, the red dots shows the pareto_frontier points into the figure. The coordinates are getting generated into the figure for all the red dots, however I would like to print all the coordinates in the command window. I have also used the handle, get(pareto_frontier, 'XData'), but it is not generating the result.

Any help in this perticular will be highly appreciated and I would be really greatful for it as I am in a urgent need of this solution.

Thank you.

Answer 1

[Image Analyst]

Why can't you just use fprintf():

for k = 1 : length(pareto_frontier(:, 2))
    fprintf('x = %f, y = %f.\n', pareto_frontier(k, 2), pareto_frontier(k, 3));
end

[kaivlya patel]

It works. Thank you very much for the help. I was thinking in a different way but now it is clear.

[kaivlya patel]

one last thing I would like to know, how can I export this x and y coordintes value to the excel file using writematrx command?

[Image Analyst]

xy = [pareto_frontier(:, 2), pareto_frontier(:, 3)];
writematrix(xy,'pareto_frontier.xlsx');