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1、%数据输入x_Yd=[129.0140.0108.588.0185.5195.5105.5157.5107.577.081.0162.0162.0117.5];y_Yd=[7.5141.528.0147.022.5137.585.5-6.5-81.03.056.5-66.584.0-38.5];z_Ft=[48686889988949];%由已知14点计算出14*14点（其中有两点重复）%计算QiQj的值Qi_QjQi_Qj=zeros(14,14);fori=1:14forj=1:14Qi_Qj(i,j)=sqrt((x_Yd(i)-x_
2、Yd(j)).^2+(y_Yd(i)-y_Yd(j)).^2);endend[G_x,G_y]=meshgrid(x_Yd,y_Yd);%计算所求196个G点的坐标%求出每个G点对应的深度Z_gform=1:14fork=1:14if((m==k)
3、((m==12)&&(k==13))
4、((m==13)&&(k==12)))%排除Qi,Qj为同一点和重复点的情况Z_g(m,k)=z_Ft(m);continue;else%计算GQij=min{GQi,GQj}G_Qi=zeros(1,14);G_Qj=zeros(1,14);fori=1:
5、14G_Qi(i)=sqrt((G_y(m,k)-y_Yd(i)).^2+(G_x(m,k)-x_Yd(i)).^2);endforj=1:14G_Qj(j)=sqrt((G_x(m,k)-x_Yd(j)).^2+(G_y(m,k)-y_Yd(j)).^2);endG_Qij=zeros(14,14);[G_Qi,G_Qj]=meshgrid(G_Qi,G_Qj);G_Qij=min(G_Qi,G_Qj);%计算G点到Qi,Qj两点连线的距离G_Pijfori=1:14forj=1:14ifsqrt((y_Yd(i)-y_Yd(j)).^2
6、+(x_Yd(i)-x_Yd(j)).^2)G_Pij(i,j)=abs((G_x(m,k)-x_Yd(i)).*(y_Yd(i)-y_Yd(j))-(G_y(m,k)-y_Yd(i)).*(x_Yd(i)-x_Yd(j)))./sqrt((y_Yd(i)-y_Yd(j)).^2+(x_Yd(i)-x_Yd(j)).^2);endendend%计算PQij=min{PQi,PQj}P_Qi=sqrt(G_Qi.^2-G_Pij.^2);P_Qj=sqrt(G_Qj.^2-G_Pij.^2);P_Qij=min(P_Qi,P_Qj);%Z_g
7、_wang=zeros(14,14);%根据平面几何关系计算出由Qi,Qj点的深度线性外推的Pij的深度Z_pfori=1:14;forj=1:14;if(Qi_Qj(i,j)==0)
8、(z_Ft(i)==z_Ft(j))Z_p(i,j)=z_Ft(i);elseif((P_Qi(i,j)<=P_Qj(i,j))&&(Qi_Qj(i,j)<=P_Qi(i,j))&&(z_Ft(i)>z_Ft(j)))Z_p(i,j)=z_Ft(j)-(abs(z_Ft(i)-z_Ft(j))).*P_Qij(i,j)./Qi_Qj(i,j);elseif(
9、(P_Qi(i,j)z_Ft(i)))Z_p(i,j)=abs(z_Ft(i)-(abs(z_Ft(j)-z_Ft(i)).*P_Qij(i,j)./Qi_Qj(i,j)));elseif((P_Qj(i,j)<=P_Qi(i,j))&&(Qi_Qj(i,j)<=P_Qi(i,j))&&(z_Ft(j)>z_Ft(i)))Z_p(i,j)=z_Ft(j)+(abs(z_Ft(j)-z_Ft(i)).*P_Qij(i,j)./Qi_Qj(i,j));e
10、lseif((P_Qi(i,j)<=P_Qj(i,j))&&(Qi_Qj(i,j)<=P_Qj(i,j))&&(z_Ft(i)>z_Ft(j)))Z_p(i,j)=z_Ft(i)+(abs(z_Ft(i)-z_Ft(j))).*P_Qij(i,j)./Qi_Qj(i,j);elseif((P_Qi(i,j)<=Qi_Qj(i,j))&&(P_Qj(i,j)<=Qi_Qj(i,j))&&(z_Ft(i)>z_Ft(j)))Z_p(i,j)=z_Ft(j)+(abs(z_Ft(i)-z_Ft(j))).*P_Qj(i,j)./Qi_Qj(i,j
11、);elseif((P_Qi(i,j)<=Qi_Qj(i,j))&&(P_Qj(i,j)<=Qi_Qj(i,j))&&(z_Ft(j)>z_Ft(i)))Z_p(i,j)=z_F
