Code Ribbon Pink October

Hello Family,

As part of Pink October: a month dedicated to raising awareness of breast cancer, which takes place in many countries around the world. It aims to inform the public about the importance of early detection, support breast cancer research, and show solidarity with those affected by the disease.

I'd like to create the “pink ribbon” for this month using MATLAB, to show what's possible. Can someone help me with the code, as I still can't get it right?

The most recent code is :

t = linspace(0, 2*pi, 1000); % Partie supérieure (arc ouvert) 
x1 = sin(t); 
y1 = cos(t) + 1; % Partie gauche (descente) 
x2 = -0.5 + 0.5 * cos(t/2); 
y2 = -1 - t/pi; % Partie droite (descente) 
x3 = 0.5 - 0.5 * cos(t/2); 
y3 = -1 - t/pi; 
figure; hold on; % Arc supérieur (boucle du ruban) - non rempli 
plot(x1, y1, 'm', 'LineWidth', 5); % Descente gauche 
fill(x2, y2, 'm', 'EdgeColor', 'm', 'LineWidth', 5); % Descente droite 
fill(x3, y3, 'm', 'EdgeColor', 'm', 'LineWidth', 5); 
axis equal; axis off; title('Ruban Rose'); hold off;

Answer 1

[praguna manvi]

Hi @Ortalain,

Here's a snippet to draw a pink ribbon using the “fill” function in MATLAB:

% Set up the figure
figure;
hold on;
axis equal;
axis off;
title('Ruban Rose');

% Define a scale for the ribbon
s = 20; 

% Center the ribbon in the plot
xOffset = 0;
yOffset = 0;

% Define the control points for the ribbon and flip the y-coordinates
x = ([0.23, 0.34, 0.50, 0.37, 0.24, 0.22, 0.22, 0.16, 0.00, -0.15, -0.18, -0.18, -0.19, -0.32, -0.44, -0.30, -0.30, -0.22, -0.54, -0.40, -0.01, 0.25, 0.71, 0.23] * s) + xOffset;
y = -([0.14, -0.05, -0.39, -0.65, -0.92, -0.98, -0.98, -1.09, -1.08, -1.07, -0.96, -0.96, -0.94, -0.64, -0.35, -0.02, -0.02, 0.12, 0.90, 1.29, 0.57, 1.09, 1.13, 0.14] * s) + yOffset;

% Draw the ribbon using fill
fill(x, y, [234/255, 128/255, 176/255], 'EdgeColor', 'none', 'FaceAlpha', 0.75);

% Define the control points for the inner part of the ribbon and flip the y-coordinates
x_inner = ([0.12, 0.05, 0.00, 0.00, -0.06, -0.11, -0.16, -0.19, -0.19, -0.13, 0.00, 0.13, 0.23, 0.23, 0.19, 0.12] * s) + xOffset;
y_inner = -([-0.52, -0.39, -0.30, -0.30, -0.39, -0.50, -0.61, -0.75, -0.75, -0.83, -0.84, -0.85, -0.78, -0.78, -0.65, -0.52] * s) + yOffset;

% Draw the inner part of the ribbon
fill(x_inner, y_inner, [234/255, 128/255, 176/255], 'EdgeColor', 'none', 'FaceAlpha', 0.75);

hold off;

[Ortalain]

Thanks for your answer @praguna manvi