I need x,y coordinates which are randomly generated between 1 to 400 for x coordinates and 1 to 100 for y coordinates, condition is minimum distance between coordinates is 10 and maximum distance is 20, distances should vary from 10 to 20? plz help

clear all;
close all;
pointsToPlace = 30 ;    % # of random coordinates we need to place
% Preallocate points
x = zeros(1, pointsToPlace);
y = zeros(1, pointsToPlace);
loopCounter = 1;
maxIterations = 200000; % Number of tries before giving up.
numberPlaced = 0; % No points placed yet.
while numberPlaced < pointsToPlace && loopCounter < maxIterations
	% Get new coordinate
	xProposed = round((10 + (50-1)*rand()),0);   %% random X- coordinates
	yProposed = round((10 + (50-1)*rand()),0);   %% random Y- coordinates
	if loopCounter == 1
		% First one automatically gets added of course.
		numberPlaced = 1;
		x(numberPlaced) = xProposed;
		y(numberPlaced) = yProposed;
	else
		% Compute distance to all prior coordinates.
		distances = sqrt((xProposed-x(1:numberPlaced)).^2 +(yProposed-y(1:numberPlaced)).^2);
		% If less than 20, add it
		if min(distances > 8)
			numberPlaced = numberPlaced + 1;
			x(numberPlaced) = xProposed;
			y(numberPlaced) = yProposed;
		end
	end
	loopCounter = loopCounter + 1;
end

above code (not my code) generates coordinates at equal distances, in my case distances should vary

Answer 1

[Walter Roberson]

change

if min(distances > 8)

to

    mind = min(distances);
    if mind >= 10 && mind <= 20

[M.Prasanna kumar]

Thank you very much sir.