how we can convert the dotted figure in to another figure shown below? To get 9 node mesh.
%% code to get dooted figure
clc ; clear;% Dimensions of the plate
L = 1 ; % Length of the Plate along X-axes
B = 1 ; % Breadth of the Plate along Y-axes
% Number of Elements required
Nx = 4 ; % Number of Elements along X-axes
Ny = 4 ; % Number of Elements along Y-axes
%----------------------------------------
nel = Nx*Ny ; % Total Number of Elements in the Mesh
nnel = 9 ; % Number of nodes per Element
% Number of points on the Length and Breadth
npx = 2*Nx+1 ;npy = 2*Ny+1 ;nnode = npx*npy ; nx = linspace(0,L,npx) ;ny = linspace(0,B,npy) ;[xx yy] = meshgrid(nx,ny) ;% To get the Nodal Connectivity Matrix
coordinates = [xx(:) yy(:)] ;plot(xx,yy,'b.','MarkerSize',10)xx(:,[2 4 6 8]) = [];yy([2 4 6 8],:)=[];coordinates1 =[xx(:) yy(:)] ;x = coordinates1(:,1);y = coordinates1(:,2);hold onplot (x,y,'r*')
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