0001
0002
0003
0004
0005
0006 function A=metesub(A,pto,S)
0007
0008 a=size(A);
0009 i=pto(1);
0010 j=pto(2);
0011 s=size(S);
0012 m=s(1);
0013 n=s(2);
0014 pto=floor(pto);
0015 i=floor(i);
0016 j=floor(j);
0017 if floor(m/2)<m/2
0018 mf=i-ceil(m/2)+1;
0019 Mf=i+ceil(m/2)-1;
0020 else
0021 mf=i-floor(m/2)+1;
0022 Mf=i+floor(m/2);
0023 end
0024 if floor(n/2)<n/2
0025 mc=j-ceil(n/2)+1;
0026 Mc=j+ceil(n/2)-1;
0027 else
0028 mc=j-floor(n/2)+1;
0029 Mc=j+floor(n/2);
0030 end
0031 if (mf<1)|(Mf>a(1))|(mc<1)|(Mc>a(2))
0032 if (mf>a(1))|(Mf<1)|(mc>a(2))|(Mc<1)
0033 A=A;
0034 elseif ((mf<1)&(mc<1))&((Mf>=1)&(Mc>=1))
0035 fi=1-mf+1;
0036 ci=1-mc+1;
0037 A(1:m-fi+1,1:n-ci+1)=S(fi:m,ci:n);
0038 elseif ((mf<1)&(Mc>=a(2)))&((Mf>=1)&(mc<=a(2)))
0039 fi=1-mf+1;
0040 cf=n-(Mc-a(2));
0041 A(1:m-fi+1,a(2)-cf+1:a(2))=S(fi:m,1:cf);
0042 elseif ((Mf>a(1))&(mc<1))&((mf<=a(1))&(Mc>=1))
0043 ci=1-mc+1;
0044 ff=m-(Mf-a(1));
0045 A(a(1)-ff+1:a(1),1:n-ci+1)=S(1:ff,ci:n);
0046 elseif ((Mf>a(1))&(Mc>a(2)))&((mf<=a(1))&(mc<=a(2)))
0047 cf=n-(Mc-a(2));
0048 ff=m-(Mf-a(1));
0049 A(a(1)-ff+1:a(1),a(2)-cf+1:a(2))=S(1:ff,1:cf);
0050 elseif (mf<1)&((Mf>=1)&(mc>=1)&(Mc<=a(2)))
0051 fi=1-mf+1;
0052 A(1:m-fi+1,mc:Mc)=S(fi:m,1:n);
0053 elseif (mc<1)&((Mc>=1)&(mf>=1)&(Mf<=a(1)))
0054 ci=1-mc+1;
0055 A(mf:Mf,1:n-ci+1)=S(1:m,ci:n);
0056 elseif (Mf>a(1))&((mf<=a(1))&(mc>=1)&(Mc<=a(2)))
0057 ff=m-(Mf-a(1));
0058 A(a(1)-ff+1:a(1),mc:Mc)=S(1:ff,1:n);
0059 elseif (Mc>a(2))&((mc<=a(2))&(mf>=1)&(Mf<=a(1)))
0060 cf=n-(Mc-a(2));
0061 A(mf:Mf,a(2)-cf+1:a(2))=S(1:m,1:cf);
0062 end
0063 else
0064 A(mf:Mf,mc:Mc)=S;
0065 end