Options for displaying data by clicking on a marker in a plot

Question

Paul 2020-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/544562-options-for-displaying-data-by-clicking-on-a-marker-in-a-plot

评论： Tommy 2020-6-18

采纳的回答： Tommy

brokenParticles.png

Hello,

is there an option for displaying data in addition to the usual x and y data by clicking on a marker in a plot?

I've plottet the coordinates of broken particles in the xy-plane and I want to display their ID in addition to their respective coordinates. The ID should be disyplayed in the same window as the x and y value (see attachement).

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Answer 1

Tommy 2020-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/544562-options-for-displaying-data-by-clicking-on-a-marker-in-a-plot#answer_448244

编辑：Tommy 2020-6-8

在 MATLAB Online 中打开

For R2018b and later:

X = rand(10,1);
Y = rand(10,1);
IDs = randi(100,10,1);
s = scatter(X, Y, 'x');
s.DataTipTemplate.DataTipRows(3) = dataTipTextRow('ID', IDs);

For R2018a and earlier, something similar to this:

X = rand(10,1);
Y = rand(10,1);
IDs = randi(100,10,1);
f = figure;
scatter(X, Y, 'x');
dcm = datacursormode(f);
dcm.UpdateFcn = {@customDataTip, IDs};
function txt = customDataTip(~, eventData, IDs)
    s = eventData.Target;
    pos = eventData.Position;
    ID = IDs(s.XData == pos(1) & s.YData == pos(2));
    valueFormat = ' \color[rgb]{0 0.6 1}\bf';
    removeValueFormat = '\color[rgb]{.25 .25 .25}\rm';
    txt = {['X',[valueFormat num2str(pos(1)) removeValueFormat]],...
           ['Y',[valueFormat num2str(pos(2)) removeValueFormat]],...
           ['ID',[valueFormat num2str(ID) removeValueFormat]]};
end

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Paul 2020-6-17

在 MATLAB Online 中打开

I've implemented your first answer. The used .txt files are attached and the complete code is the following:

clear all
clc
%Importing data from walls.txt:
A1 = importdata('walls.txt ');
A = A1.data(1:256,:);
%Importing data from brokenPart.txt
A2 = importdata('brokenPart.txt');
P = A2.data;
Ax = A(:,5);
Ay = A(:,6);
Az = A(:,7);
Bx = A(:,8);
By = A(:,9);
Bz = A(:,10);
Cx = A(:,11);
Cy = A(:,12);
Cz = A(:,13);
x = [Ax; Bx; Cx];
y = [Ay; By; Cy];
z = [Az; Bz; Cz];
Px = P(:,9);
Py = P(:,10);
Pz = P(:,11);
tsim = P(:,1);
figure(1)
plot([min(x),max(x)],[min(z),min(z)],'-k','LineWidth',2) 
hold on
plot([max(x),max(x)],[min(z),max(z)],'-k','LineWidth',2);
plot([max(x),min(x)],[max(z),max(z)],'-k','LineWidth',2); 
plot([min(x),min(x)],[max(z),min(z)],'-k','LineWidth',2); 
s = scatter(Px,Pz,50,tsim,'x');
s.DataTipTemplate.DataTipRows(3) = dataTipTextRow('ID', A(:,2));
hold off
xlabel('x [m]');
ylabel('z [m]'); 
c = colorbar;   
c.Label.String = 'tsim [s]'; 
figure(2)
plot(Ax,Ay,'-k','LineWidth',2) 
hold on
s = scatter(Px,Py,50,tsim,'x'); 
s.DataTipTemplate.DataTipRows(3) = dataTipTextRow('ID', A(:,2));
hold off
xlabel('x [m]'); 
ylabel('y [m]');
c = colorbar;   
c.Label.String = 'tsim [s]'; 