Hello,
You can use the following code snippet for your needs,
%% Just some viusally instructive, artificial sample data
numPts = 100;
phiRand = linspace(0,2*pi, numPts);
phiOffs = pi/3;
randAmp = 0.35;
d(1,:) = cos(phiRand) + randAmp*rand(1,numPts);
d(2,:) = sin(phiRand) + randAmp*rand(1,numPts);
d(3,:) = 1.5*cos(phiRand-phiOffs) + randAmp/2*rand(1,numPts);
d(4,:) = -0.5*sin(phiRand) + randAmp/2*rand(1,numPts);
h1 = scatter(d(1,:), d(2,:));
xlabel('d1')
ylabel('d2')
f2 = figure(2);
h2 = scatter(d(3,:), d(4,:));
gch2 = gcf;
xlabel('d3')
ylabel('d4')
%% Customization of the Brush-Option for the first figure
% Get the handle of the Brush-property of the first figure
brush1 = brush(h1);
% Define the Callback function 'ActionPostCallback' of the
% Brush-functionality of the first figure by means of a wrapper that
% receives both handles of the two scatter plots and the handle to the
% second figure in addition
set(brush1, 'ActionPostCallback', @(ohf, s) myCallbackBrush(ohf, s, h1, h2, f2), ...
'enable', 'on')
%% Customized 'ActionPostCallback' callback function
function myCallbackBrush(ohf, s, h1, h2, f2)
% Get the IDs of the points that are brushed in the first figure
idBrush = get(h1, 'BrushData');
% Bring the second figure to the foreground
ax2 = get(f2, 'CurrentAxes');
% Highlight the selected points in the second figure
figure(f2)
hold on;
scatter(ax2, h2.XData, h2.YData, 'MarkerEdgeColor', [0, 0.4470, 0.7410]);
scatter(h2.XData(find(idBrush)), h2.YData(find(idBrush)), 'ro');
hold off;
% Show the coordinates of the brushed points on both figures
disp("Fig. 1: ")
disp([h1.XData(find(idBrush))' h1.YData(find(idBrush))'])
disp(" ")
disp("Fig. 2: ")
disp([h2.XData(find(idBrush))' h2.YData(find(idBrush))'])
end
More information about the latter callback function you can find in the following documentation page,
Kind regards,
Andreas
