Index of point in matlab plot

4 views (last 30 days)
Arvind Kumar Pathak
Arvind Kumar Pathak on 20 May 2019
Commented: KSSV on 20 May 2019
x = rand(10,3);
plot3(x(:,1),x(:,2),x(:,3),'R.')
hold on
pause;
y = rand(10,3);
plot3(y(:,1),y(:,2),y(:,3),'B.')
%%%%
After ploting the x and y values, I want to click any point on the plot and it well give the information that perticular point lies in x matrix oy y matrix and tells the point no also respectively.

Answers (1)

KSSV
KSSV on 20 May 2019
x = rand(10,3);
y = rand(10,3);
hold on
plot3(x(:,1),x(:,2),x(:,3),'R.')
plot3(y(:,1),y(:,2),y(:,3),'B.')
idx = knnsearch(x,y) ;
position_of_y = (1:size(y,1))' ;
nearest_of_y_in_x = idx ;
T = table(position_of_y,nearest_of_y_in_x) ;
text(y(:,1),y(:,2),y(:,3),num2str(position_of_y))
text(x(:,1),x(:,2),x(:,3),num2str(nearest_of_y_in_x))
  2 Comments
Arvind Kumar Pathak
Arvind Kumar Pathak on 20 May 2019
What is table ?
T = table(position_of_y,nearest_of_y_in_x) ;
KSSV
KSSV on 20 May 2019
It is kind of representing data. Read about it.

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