matlab不规则散点插值
clear
clc

% 读入你的xyz 假设你的xy坐标范围在-100到100之间

F_z=TriScatteredInterp(x,y,z);
ti=-100:100; %xy的数据范围
[qx,qy]=meshgrid(ti,ti);
qz=F_z(qx,qy);
surf(qx,qy,qz);

http://xiaozu.renren.com/xiaozu/106512/358088928

http://xiaozu.renren.com/xiaozu/106512/358090198