3楼: Originally posted by bangnihuihui at 2015-01-04 20:20:10
楼主说的“起伏最大的环状区域单独取出来，再精细插值”如何操作啊？比如说，我想在第200到250条线之间，每条线的200到250个点，的这个区域内再细算一下。
多谢楼主提醒的好建议，好人一枚啊...

clear all;clc
z=CSVread('C:\Users\DELL\Desktop\cc-500.csv');%%导入数据
x=1:10:501;
y=1:10:500;

z=z(1:10:end,1:10:end);


[x,y]=meshgrid(x,y);%%创建100*101矩阵

[x1,y1]=meshgrid(1:1:501,1:1:500);
z1=griddata(x,y,z,x1,y1,'v4');
figure(1)
surf(x,y,z),view(15,30),shading interp %%创建三维图

figure(2)
surf(x1,y1,z1),view(15,30),shading interp;

2楼: Originally posted by 月只蓝 at 2015-01-04 09:02:24
插值代码，参考：
clear all;clc
z=CSVread('C:\Users\DELL\Desktop\cc-500.csv');%%导入数据
x=1:10:501;
y=1:10:500;

z=z(1:10:end,1:10:end);


=meshgrid(x,y);%%创建100*101矩阵

=meshgrid(1:1:5 ...

2楼: Originally posted by 月只蓝 at 2015-01-04 09:02:24
插值代码，参考：
clear all;clc
z=CSVread('C:\Users\DELL\Desktop\cc-500.csv');%%导入数据
x=1:10:501;
y=1:10:500;

z=z(1:10:end,1:10:end);


=meshgrid(x,y);%%创建100*101矩阵

=meshgrid(1:1:5 ...