Plot points with minimal distance

Hello friends, please a i need i make 1000x1000 place and plot three points with color on this place. But distance between points must be minimal 400metres.

Thank you :)

[darova]

Please show us your attempts

[Jon]

Please explain further, it is not clear what you are trying to do. What is a "place"?How does the scale in metres somehow relate to your array size. Can you put these points anywhere as long as they are a certain distance apart? There are infinitely many other ways of putting three points that are more than x away from each other in a two dimensional plane. Three points put all along the same line are at least x units away from each other as long as the interval between the points is greater than x. Another simple possibility is to put them at the vertices of an equilateral triangle whose sides are at least x.

[Richard Hojstric]

So, i need to do :

In Matlab, render an area of ​​1000 x 1000metres. In this area plot 3 points random (i think), with some color. Distance between this poitns should be minimum 400m.

And of the end display its x and y coordinates to each point.

I think it a simple but i have matlab last year :D

Something like on picture but i need it 1000x1000 area and with distance :)

Thanks.

[Richard Hojstric]

But this three points can be set permanently not random :) its easier. But how set distance ?

Answer 1

[Shadaab Siddiqie]

From my understanding you want to plot 3 random points, each at a distance of at least 400units form other 2 points, in a plot of 1000x1000 units. You could select first point randomly. Then for second point you can keep selecting a point randomly until the condition satisfies. Similarly, do it for the third point.

% randomly choose point1
point1 = [randi(1000),randi(1000)];

% choose point2 such that distance between point1 and point2 is greater than 400
point2 = [randi(1000),randi(1000)];
while pdist([point1;point2],"euclidean")<=400
point2 = [randi(1000),randi(1000)];
end

% choose point3 such that distance between point3 and point1 is greater than 400 and
% distance between point3 and point2 is greater than 400
point3 = [randi(1000),randi(1000)];
while pdist([point1;point3],"euclidean")<=400 || pdist([point2;point3],"euclidean")<=400 
point3 = [randi(1000),randi(1000)];
end

%plot the points
hold on 
plot([point1(1) point2(1) point3(1)],[point1(2) point2(2) point3(2)],'.b',"Marker","o");
xlim([0 1000])
ylim([0 1000])

Hope this helps.