assume (320,190) is the starting point of a bonzai expansion who will spread across the globe
bonzai(320,190)=1;
that works fine, but i want that matlab asks for the starting point while running the script, so like this:
bonzai=input('give lon,lat of the bonzai tree')=1
but it doens't work
someone a solution?
You have two equal signs in your expression, i.e. something like x = y = z, so this can not work. I would suggest to save the input into a variable, then check if it contains valid entries, and then use this variable to start the expansion:
% Get user input
userInput = input('Give lon,lat of the bonzai tree: ');
Now, I guess you hope for the user to enter something like [320,190], which is a vector with two values - however you can't be sure about that. So you might want to check, if the user entered a numeric input, and if the user supplied two numbers:
% Check if the input is numeric, i.e. a scalar, vector or matrix of numbers
if ~isnumeric(userInput)
error('Please enter numbers, nothing else!')
end
% Check if the input contains exactly two numbers
if numel(userInput) ~= 2
error('Please specify two numbers: lon and lat')
end
Finally, you are sure, the user entered the numbers in a correct format, and you can use this to initialize bonzai:
% Initialize bonzai
bonzai(userInput(1),userInput(2)) = 1;
