Create a plot of points on a circumference separated by radii

% Parametri del plot
numCircles = 10;    % Numero di circonferenze concentriche
numPoints = 20;     % Numero di punti tra una corona e l'altra
% Calcola i raggi delle circonferenze concentriche
radii = linspace(0.1, 1, numCircles);
% Calcola gli angoli per i punti su ogni circonferenza
angles = linspace(0, 2*pi, numPoints+1);
angles = angles(1:end-1);
% Inizializza la figura
figure(1);
hold on;
axis equal;
grid on;
% Disegna le circonferenze concentriche
for i = 1:numCircles
    r = radii(i);
    theta = linspace(0, 2*pi, 100);
    x = r * cos(theta);
    y = r * sin(theta);
    plot(x, y, 'k');
end
% Disegna i punti tra le circonferenze
for i = 1:numCircles-1
    r1 = radii(i);
    r2 = radii(i+1);
    theta1 = linspace(0, 2*pi, numPoints+1);
    theta1 = theta1(1:end-1);
    theta2 = linspace(0, 2*pi, numPoints+1);
    theta2 = theta2(1:end-1);
    x1 = r1 * cos(theta1);
    y1 = r1 * sin(theta1);
    x2 = r2 * cos(theta2);
    y2 = r2 * sin(theta2);
    
    midX = (x1 + x2) / 2;
    midY = (y1 + y2) / 2;
    plot(midX, midY, 'k.', 'LineWidth', 5);
end
% Disegna i raggi che collegano i punti sfasati di un angolo
for i = 1:numCircles-1
    r1 = radii(i);
    r2 = radii(i+1);
    theta1 = linspace(0, 2*pi, numPoints+1);
    theta1 = theta1(1:end-1);
    theta2 = linspace(0, 2*pi, numPoints+1);
    theta2 = theta2(1:end-1);
    x1 = r1 * cos(theta1);
    y1 = r1 * sin(theta1);
    x2 = r2 * cos(theta2);
    y2 = r2 * sin(theta2);
    
    angleDiff = (theta2 - theta1) / 2;
    newTheta = theta1 + angleDiff;
    endX = r2 * cos(newTheta);
    endY = r2 * sin(newTheta);
    
    for j = 1:numPoints
        plot([x1(j) endX(j)], [y1(j) endY(j)], 'k');
    end
end
hold off
xlim([-1 1])
ylim([-1 1])
% Aggiungi titolo e label agli assi
% xlabel('X');
% ylabel('Y');

John D'Errico 2023-6-3

在 MATLAB Online 中打开

@Dyuman Joshi - this seems almost spot on. But you might change the circumferential ticks, to leave each point appear to be inside a region, not on an edge.

%Number of points

n=5;

%Range of angles

theta = 0:30:360;

%Range of radii

r = 0:n-1;

%Generating the set of points

[R,THETA]=meshgrid(r, theta);

%plotting the points

polarscatter(deg2rad(THETA), R, [], [0 0 0], 'filled')

%Modify ticks and tick labels as per requirement

thetaticks(15:30:360)

rticks([1/2:n-1/2]) % Different

I changed only the very last line from what you did.

Dyuman Joshi 2023-6-3

编辑：Dyuman Joshi 2023-6-3

@John D'Errico, You are, of course, right that my answer is a bit incomplete.

The thing is, I was not sure if I wanted to do give the full solution and thought OP will figure it out based on my comments, so I left some bits.

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Create a plot of points on a circumference separated by radii

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Create a plot of points on a circumference separated by radii

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