How can i change the boarder color of CIE1931 plot? I want to change the chromaticity plot boarder color to black

figure(1);
plotChromaticity();
hold on;
clc
clear all
cd('C:\Users\RABIUL ISLAM\Desktop');
raj = xlsread("cie variation due to polarization angles.xlsx");
cie_x = raj(:,4);
cie_y = raj(:,5);
% Plot the white connecting line
plot(cie_x, cie_y, 'w-', 'LineWidth', 2);  
% Scatter plot using pentagram (5-pointed star)
h = scatter(cie_x, cie_y, 100, 'k', 'p', 'filled'); 

here is my code...I want to change the boarder colour of CIE1931 chromaticity plot to black...How can i do it?

Answer 1

[Voss]

figure(1);
plotChromaticity();
hold on;

To make the axes border black all around:

box on

Or, if you mean to make the surface edges black:

p = findall(gca(),'Type','surface');
p.EdgeColor = 'k';

The rest of the code with random data to show both effects:

cie_x = rand(10,1);
cie_y = rand(10,1);
% Plot the white connecting line
plot(cie_x, cie_y, 'w-', 'LineWidth', 2);  
% Scatter plot using pentagram (5-pointed star)
h = scatter(cie_x, cie_y, 100, 'k', 'p', 'filled'); 

[MD. Rabiul]

i want to change the CIE 1931 boarder colour like that to black

[Voss]

Here are a couple of attempts at that. Maybe the second one is good enough for this specific case.

figure();
plotChromaticity();
hold on;

p = findall(gca(),'Type','surface');
k = boundary(p.XData(:),p.YData(:));
plot(p.XData(k),p.YData(k),'k','LineWidth',2)

figure();
plotChromaticity();
hold on;

p = findall(gca(),'Type','surface');
k = convhull(p.XData(:),p.YData(:));
plot(p.XData(k),p.YData(k),'k','LineWidth',2)