Distance from center to the points

I need the distance to the points (first generated point will be point 1 and so on) from the centre (0,0) from the graph generated by the code below:

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Code taken from the following Reference: % https://au.mathworks.com/matlabcentral/answers/315717-poisson-point-process-with-fixed-n

r=1; %radius of disk

xx0=0; yy0=0; %centre of disk

%Simulate binomial point process

pointsNumber=5;

theta=2*pi*(rand(pointsNumber,1)); %angular coordinates

rho=r*sqrt(rand(pointsNumber,1)); %radial coordinates

%Convert from polar to Cartesian coordinates

[xx,yy]=pol2cart(theta,rho); %x/y coordinates of Poisson points

%Shift centre of disk to (xx0,yy0)

xx=xx+xx0

yy=yy+yy0

% X = [0,0;xx,yy];

% d = pdist(X,'euclidean')

%Plotting

scatter(xx,yy);

xlabel('x');ylabel('y');

axis square;

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Any assistance would be highly appreciated.

Answer 1

[Star Strider]

Add this line to your code just after the pol2cart call:

D = pdist2([0 0], [xx, yy]);                                        % Distance

If you want to display the distances on your plot, add these lines after the axis square call:

tc = sprintfc('  %.2f',D);                                          % Display Distances
text(xx, yy, tc, 'HorizontalAlignment','left')                      % Display Distances

You can also experiment with this:

set(gca, 'XAXisLocation','origin', 'YAXisLocation','origin')

Put it just after the scatter call.

[Adeena Naeem]

Many many thanks!

[Star Strider]

As always, my pleasure!