How to find node coordinates for the provided honeycomb structure as shown in picture below

Side lenght, and center must be user input.

Answer 1

[Image Analyst]

I'm not sure the image you posted has enough resolution in the small hexagons to resolve them. If you have a much higher resolution image, it would be possible.

To get user input, modify this snippet:

% Ask user for two floating point numbers.
defaultValue = {'45.67', '78.91'};
titleBar = 'Enter values';
userPrompt = {'Enter floating point number 1 : ', 'Enter floating point number 2: '};
caUserInput = inputdlg(userPrompt, titleBar, 1, defaultValue);
if isempty(caUserInput),return,end % Bail out if they clicked Cancel.
% Convert to floating point from string.
usersValue1 = str2double(caUserInput{1})
usersValue2 = str2double(caUserInput{2})
% Check usersValue1 for validity.
if isnan(usersValue1)
    % They didn't enter a number.
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
    % Convert the default from a string and stick that into usersValue1.
    usersValue1 = str2double(defaultValue{1});
    message = sprintf('I said it had to be a number.\nTry replacing the user.\nI will use %.2f and continue.', usersValue1);
    uiwait(warndlg(message));
end
% Do the same for usersValue2
% Check usersValue2 for validity.
if isnan(usersValue2)
    % They didn't enter a number.
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
    % Convert the default from a string and stick that into usersValue2.
    usersValue2 = str2double(defaultValue{2});
    message = sprintf('I said it had to be a number.\nTry replacing the user.\nI will use %.2f and continue.', usersValue2);
    uiwait(warndlg(message));
end

[Nupur]

I couldnt understand what you want to say, please elaborate.

[Nupur]

Also i tried above code, it is not giving me desired output.

[Image Analyst]

Why not? Did you change this line:

userPrompt = {'Enter floating point number 1 : ', 'Enter floating point number 2: '};

to

userPrompt = {'Enter side length : ', 'Enter center '};