MATLAB moving a point in the XY plane

Question

In MATLAB, I have an XY plane that is represented by finite number of points. The possible values of x are stored in a vector X and the possible values of y are stored in an

Answer 1

lets say A = [Xcenter Ycenter]

for K-hop, you can access points:

pointsX = [];
pointsY = [];
for i=-k:k
  pointsX = [pointsX  Xcenter+i]; 
  pointsY = [pointsY  Ycenter+i];
end

Furthermore, you can filter these points by order coordinates and remove the outliers. e.g. consider

(1,1)  (1,2)  (1,3)
(2,1)  (2,2)  (2,3)
(3,1)  (3,2)  (3,3)

Now you know that minimum allowed X and Y are 1, so just filter out points with any ordinate and/or abscissa lesser than that.