how to get Coordinatee in this program

hi i want help for get coordinatee for each maille in this program

for exampl the first maille

1 2

8 9

the second

2 3

9 10

clc
clear all
close all
format short
a=6;b=6;
dx=1;  %Le nombre de division suivant x  nelx
dy=1;
global T_Coord scalex scaley

xlimit=-2;
ylimit=-2;
Nx=(a/dx)+1;    %Le nombre de node suivant X
Ny=(b/dy)+1;    %Le nombre de node suivant y
Nt=Nx*Ny;   %Le nombre de node total 
Nmx=(a/dx);
Nmy=(a/dy);
Nmt=Nmx*Nmy;

Cx=0;
Cy=0;
NumNd=0;
for Ix=xlimit:(a+xlimit);
Cx=(Ix);
for Iy=ylimit:(b+ylimit);
Cy=(Iy);
NumNd=NumNd+1;
T_Coord(1,NumNd)=NumNd;
T_Coord(2,NumNd)=Cx;
T_Coord(3,NumNd)=Cy;
end

end


figure
hold on
x=T_Coord(2,:);
y=T_Coord(3,:);
Coord=[x;y]';
plot((x),(y),'.')
sx=x(1,end)+scalex;
sy=y(1,end)+scaley;
axis ([sx -scaley sy]);
%
title ('Maillage');
%

for ti=1:Nt;
text(Coord(ti,2),Coord(ti,1),num2str(ti),'Color','k','FontSize',12)
end