how can i plot node without redundant node !?

hello how can i plot node without redundant node :

1. i suppose that node u wil redundant if dist(u,v)< r(range of sensor)
2. degree of node is the number of neighbor(redundant node whos include in range of sensor r)where dist(u,v)< rmy code :

degree=[];
if isfield(handles,'net')
    for i = 1:numel(handles.net(1,:))
        degree(i)=0;
        for j = 1:numel(handles.net(1,:))
            X1 = handles.net(2,i);
            Y1 = handles.net(3,i);
            X2 = handles.net(2,j);
            Y2 = handles.net(3,j);
            xSide = abs(X2-X1);
            ySide = abs(Y2-Y1);
            d = sqrt(xSide^2+ySide^2);% distance euclidienne
            %DD(i,j)=d %matrice de distance entre noeuds
            %disp(DD);
            %RESORTIR LES NOEUD REDONDANTS
            if (d<(handles.r))&&(i~=j)% <2r %2*
                degree(i)=degree(i)+1;% CALCULE LEs nombre de neighbord( DEGRE) DES NOEUDS REDONDANTS
                disp(degree(i))
                %plot([X1,X2],[Y1,Y2],'o','LineWidth',0.1);
                % hold on;
                %for i = 1:numel(handles.net(1,:))
                %    for j = 1:numel(handles.net(1,:))
                % if (d<=2*(handles.r))&&(i~=j)
                if (max(degree))&&(min(handles.d_sink))
                    plot([X1,X2],[Y1,Y2],'o','LineWidth',0.1);
                    grid on;
                end
            end
        end
        % end
        %end
        %end
    end
end

[Image Analyst]

http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

[per isakson]

I did the markup